INVESTIGADORES
URRETAVIZCAYA Guillermina
artículos
Título:
Electrical properties and thermal expansion of cordierite and cordierite-mullite materials
Autor/es:
CAMERUCCI, MA; GUILLERMINA URRETAVIZCAYA; M.S. CASTRO; CAVALIERI, A.L.
Revista:
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
Editorial:
Elsevier
Referencias:
Lugar: Oxford; Año: 2001 vol. 21 p. 2917 - 2923
ISSN:
0955-2219
Resumen:
Commercially available cordierite and mullite powders were used to obtain cordierite and composite materials with mullite content
up to 65 wt.% by attrition milling, uniaxial pressing and sintering. The employed cordierite powders were the coarse, medium
and fine single granulometric fractions and the binary mixtures of them with 30, 50 and 70 wt.% of the smaller size component.
Mullite powder employed in composites was a 7 h-attrition milled one. The dielectric constant, dielectric loss tangent,
resistivity and thermal expansion coefficient were measured. The influence of the porosity, mullite and glassy phase contents
and grain size in the electrical parameters was analyzed. The thermal expansion coefficient as a function of the composition was
studied.
and grain size in the electrical parameters was analyzed. The thermal expansion coefficient as a function of the composition was
studied.
resistivity and thermal expansion coefficient were measured. The influence of the porosity, mullite and glassy phase contents
and grain size in the electrical parameters was analyzed. The thermal expansion coefficient as a function of the composition was
studied.
and grain size in the electrical parameters was analyzed. The thermal expansion coefficient as a function of the composition was
studied.
, dielectric loss tangent,
resistivity and thermal expansion coefficient were measured. The influence of the porosity, mullite and glassy phase contents
and grain size in the electrical parameters was analyzed. The thermal expansion coefficient as a function of the composition was
studied.
and grain size in the electrical parameters was analyzed. The thermal expansion coefficient as a function of the composition was
studied.
and thermal expansion coefficient were measured. The influence of the porosity, mullite and glassy phase contents
and grain size in the electrical parameters was analyzed. The thermal expansion coefficient as a function of the composition was
studied.