Impurity cation diffusion in perovskite-type oxide, YCrO3

被引：0

作者：

Hong, JO ^{[1
]}

Miyoshi, S ^{[1
]}

Kaimai, A ^{[1
]}

Yashiro, K ^{[1
]}

Nigara, Y ^{[1
]}

Kawada, I ^{[1
]}

Mizusaki, J ^{[1
]}

机构：

[1] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Aoba Ku, Sendai, Miyagi 9808577, Japan

来源：

IONIC AND MIXED CONDUCTING CERAMICS IV | 2002年 / 2001卷 / 28期

关键词：

D O I：

暂无

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Impurity diffusion coefficients on Y- and Cr-sublattice in a perovskite-type oxide, YCrO3 were determined along with the electrical conductivity as a function of oxygen partial pressure in the range of 10(-2) less than or equal to Po-2/atm less than or equal to 1 at elevated temperatures of 1000 less than or equal to 5 T/degreesC less than or equal to 1200 by using La and Mn as an impurity on Y and Cr site, respectively. The impurity diffusivity, D-La and D-Mn was between 10(-18) and 10(-16) cm(2) /sec. Both D-La and D-Mn are comparable in magnitude, and show a similar Po-2 dependence. Defect structure on cationic sublattice of YCrO3 was discussed with the dependence of the electrical conductivity and impurity diffusivity on Po-2.

引用

页码：49 / 57

页数：9

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