IFLP   13074
INSTITUTO DE FISICA LA PLATA
Unidad Ejecutora - UE
artículos
Título:
PALS Study on the Defect Structure of Yttria Stabilized Zirconia
Autor/es:
L. C. DAMONTE, M. A. TAYLOR, J. DESIMONI AND J. RUNCO,
Revista:
RADIATION PHYSICS AND CHEMESTRY
Editorial:
elservier
Referencias:
Año: 2007 vol. 76 p. 248 - 251
ISSN:
0146-5724
Resumen:
Abstract
Powders of stabilized ZrO28 mol% Y2O3 (YSZ) have been obtained by mechanical milling in zirconia vials. The
samples were characterized by X-ray diffraction (XRD). Positron annihilation lifetime (PALS) measurements
were performed to investigate the lattice defects originated by the incorporation of yttria and those mechanically
induced. The XRD results indicate the formation of tetragonal YSZ solid solution. PALS results indicate that
positron trapping occurs at different kinds of defects such as vacancy-like defects, grain boundary and associated
defects.
samples were characterized by X-ray diffraction (XRD). Positron annihilation lifetime (PALS) measurements
were performed to investigate the lattice defects originated by the incorporation of yttria and those mechanically
induced. The XRD results indicate the formation of tetragonal YSZ solid solution. PALS results indicate that
positron trapping occurs at different kinds of defects such as vacancy-like defects, grain boundary and associated
defects.
samples were characterized by X-ray diffraction (XRD). Positron annihilation lifetime (PALS) measurements
were performed to investigate the lattice defects originated by the incorporation of yttria and those mechanically
induced. The XRD results indicate the formation of tetragonal YSZ solid solution. PALS results indicate that
positron trapping occurs at different kinds of defects such as vacancy-like defects, grain boundary and associated
defects.
samples were characterized by X-ray diffraction (XRD). Positron annihilation lifetime (PALS) measurements
were performed to investigate the lattice defects originated by the incorporation of yttria and those mechanically
induced. The XRD results indicate the formation of tetragonal YSZ solid solution. PALS results indicate that
positron trapping occurs at different kinds of defects such as vacancy-like defects, grain boundary and associated
defects.
28 mol% Y2O3 (YSZ) have been obtained by mechanical milling in zirconia vials. The
samples were characterized by X-ray diffraction (XRD). Positron annihilation lifetime (PALS) measurements
were performed to investigate the lattice defects originated by the incorporation of yttria and those mechanically
induced. The XRD results indicate the formation of tetragonal YSZ solid solution. PALS results indicate that
positron trapping occurs at different kinds of defects such as vacancy-like defects, grain boundary and associated
defects.