IFLP   13074
INSTITUTO DE FISICA LA PLATA
Unidad Ejecutora - UE
artículos
Título:
Thermal evolution of CaO-doped HfO2 films and powders
Autor/es:
S. A. BAROLIN; M. C. CARACOCHE; J. A. MARTÍNEZ; P. C. RIVAS; M. A. TAYLOR; A. F. PASQUEVICH; O. A. DE SANCTIS
Revista:
Journal of Physics Conference Series
Editorial:
IOP Science
Referencias:
Año: 2009 vol. 167 p. 12052 - 12058
ISSN:
1742-6588
Resumen:
Solid solutions of ZrO2 and HfO2 are potential electrolyte materials for intermediate-
temperature SOFC because both are oxygen-ion conductors. The main challenge for these
compounds is to reduce the relatively high value of the activation energies vacancies diffusion,
which is influenced by several factors. In this work the thermal evolution of CaO-HfO2 materials
have been investigated. (CaO)y-Hf(1-y)O(2-y) (y = 0.06, 0.14 y 0.2) coatings and powders
were synthesized by chemical solution deposition (CSD). Films were deposited onto alumina
substrates by Dip Coating technique, the burning of organic waste was carried out at 500 ¨¬C
under normal atmosphere and then the films were thermally treated at intervals of temperature
rising to a maximum temperature of 1250 ¨¬C. By means Glazing Incidence X-ray Diffraction
(ϕ-2¥è configuration) the phases were studied in the annealed films. On the other hand, the
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
have been investigated. (CaO)y-Hf(1-y)O(2-y) (y = 0.06, 0.14 y 0.2) coatings and powders
were synthesized by chemical solution deposition (CSD). Films were deposited onto alumina
substrates by Dip Coating technique, the burning of organic waste was carried out at 500 ¨¬C
under normal atmosphere and then the films were thermally treated at intervals of temperature
rising to a maximum temperature of 1250 ¨¬C. By means Glazing Incidence X-ray Diffraction
(ϕ-2¥è configuration) the phases were studied in the annealed films. On the other hand, the
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
have been investigated. (CaO)y-Hf(1-y)O(2-y) (y = 0.06, 0.14 y 0.2) coatings and powders
were synthesized by chemical solution deposition (CSD). Films were deposited onto alumina
substrates by Dip Coating technique, the burning of organic waste was carried out at 500 ¨¬C
under normal atmosphere and then the films were thermally treated at intervals of temperature
rising to a maximum temperature of 1250 ¨¬C. By means Glazing Incidence X-ray Diffraction
(ϕ-2¥è configuration) the phases were studied in the annealed films. On the other hand, the
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
have been investigated. (CaO)y-Hf(1-y)O(2-y) (y = 0.06, 0.14 y 0.2) coatings and powders
were synthesized by chemical solution deposition (CSD). Films were deposited onto alumina
substrates by Dip Coating technique, the burning of organic waste was carried out at 500 ¨¬C
under normal atmosphere and then the films were thermally treated at intervals of temperature
rising to a maximum temperature of 1250 ¨¬C. By means Glazing Incidence X-ray Diffraction
(ϕ-2¥è configuration) the phases were studied in the annealed films. On the other hand, the
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
have been investigated. (CaO)y-Hf(1-y)O(2-y) (y = 0.06, 0.14 y 0.2) coatings and powders
were synthesized by chemical solution deposition (CSD). Films were deposited onto alumina
substrates by Dip Coating technique, the burning of organic waste was carried out at 500 ¨¬C
under normal atmosphere and then the films were thermally treated at intervals of temperature
rising to a maximum temperature of 1250 ¨¬C. By means Glazing Incidence X-ray Diffraction
(ϕ-2¥è configuration) the phases were studied in the annealed films. On the other hand, the
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
have been investigated. (CaO)y-Hf(1-y)O(2-y) (y = 0.06, 0.14 y 0.2) coatings and powders
were synthesized by chemical solution deposition (CSD). Films were deposited onto alumina
substrates by Dip Coating technique, the burning of organic waste was carried out at 500 ¨¬C
under normal atmosphere and then the films were thermally treated at intervals of temperature
rising to a maximum temperature of 1250 ¨¬C. By means Glazing Incidence X-ray Diffraction
(ϕ-2¥è configuration) the phases were studied in the annealed films. On the other hand, the
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
have been investigated. (CaO)y-Hf(1-y)O(2-y) (y = 0.06, 0.14 y 0.2) coatings and powders
were synthesized by chemical solution deposition (CSD). Films were deposited onto alumina
substrates by Dip Coating technique, the burning of organic waste was carried out at 500 ¨¬C
under normal atmosphere and then the films were thermally treated at intervals of temperature
rising to a maximum temperature of 1250 ¨¬C. By means Glazing Incidence X-ray Diffraction
(ϕ-2¥è configuration) the phases were studied in the annealed films. On the other hand, the
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
have been investigated. (CaO)y-Hf(1-y)O(2-y) (y = 0.06, 0.14 y 0.2) coatings and powders
were synthesized by chemical solution deposition (CSD). Films were deposited onto alumina
substrates by Dip Coating technique, the burning of organic waste was carried out at 500 ¨¬C
under normal atmosphere and then the films were thermally treated at intervals of temperature
rising to a maximum temperature of 1250 ¨¬C. By means Glazing Incidence X-ray Diffraction
(ϕ-2¥è configuration) the phases were studied in the annealed films. On the other hand, the
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
temperature SOFC because both are oxygen-ion conductors. The main challenge for these
compounds is to reduce the relatively high value of the activation energies vacancies diffusion,
which is influenced by several factors. In this work the thermal evolution of CaO-HfO2 materials
have been investigated. (CaO)y-Hf(1-y)O(2-y) (y = 0.06, 0.14 y 0.2) coatings and powders
were synthesized by chemical solution deposition (CSD). Films were deposited onto alumina
substrates by Dip Coating technique, the burning of organic waste was carried out at 500 ¨¬C
under normal atmosphere and then the films were thermally treated at intervals of temperature
rising to a maximum temperature of 1250 ¨¬C. By means Glazing Incidence X-ray Diffraction
(ϕ-2¥è configuration) the phases were studied in the annealed films. On the other hand, the
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
have been investigated. (CaO)y-Hf(1-y)O(2-y) (y = 0.06, 0.14 y 0.2) coatings and powders
were synthesized by chemical solution deposition (CSD). Films were deposited onto alumina
substrates by Dip Coating technique, the burning of organic waste was carried out at 500 ¨¬C
under normal atmosphere and then the films were thermally treated at intervals of temperature
rising to a maximum temperature of 1250 ¨¬C. By means Glazing Incidence X-ray Diffraction
(ϕ-2¥è configuration) the phases were studied in the annealed films. On the other hand, the
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
have been investigated. (CaO)y-Hf(1-y)O(2-y) (y = 0.06, 0.14 y 0.2) coatings and powders
were synthesized by chemical solution deposition (CSD). Films were deposited onto alumina
substrates by Dip Coating technique, the burning of organic waste was carried out at 500 ¨¬C
under normal atmosphere and then the films were thermally treated at intervals of temperature
rising to a maximum temperature of 1250 ¨¬C. By means Glazing Incidence X-ray Diffraction
(ϕ-2¥è configuration) the phases were studied in the annealed films. On the other hand, the
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
have been investigated. (CaO)y-Hf(1-y)O(2-y) (y = 0.06, 0.14 y 0.2) coatings and powders
were synthesized by chemical solution deposition (CSD). Films were deposited onto alumina
substrates by Dip Coating technique, the burning of organic waste was carried out at 500 ¨¬C
under normal atmosphere and then the films were thermally treated at intervals of temperature
rising to a maximum temperature of 1250 ¨¬C. By means Glazing Incidence X-ray Diffraction
(ϕ-2¥è configuration) the phases were studied in the annealed films. On the other hand, the
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
have been investigated. (CaO)y-Hf(1-y)O(2-y) (y = 0.06, 0.14 y 0.2) coatings and powders
were synthesized by chemical solution deposition (CSD). Films were deposited onto alumina
substrates by Dip Coating technique, the burning of organic waste was carried out at 500 ¨¬C
under normal atmosphere and then the films were thermally treated at intervals of temperature
rising to a maximum temperature of 1250 ¨¬C. By means Glazing Incidence X-ray Diffraction
(ϕ-2¥è configuration) the phases were studied in the annealed films. On the other hand, the
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occurred in films and powders were analyzed. The activation
energies of diffusion of oxygen vacancies of HfO2-14 mole% CaO and HfO2-20 mole% CaO
films were measured from the thermal evolution of the relaxation constant measured by Perturbed
Angular Correlation Technique.
thermal evolution and crystallization process of powders were analyzed in-situ by HT-XRD.
The phenomena crystallization occu