Defect Structure, Nonstoichiometry, And Phase Stability Of Ca-doped YCrO3

Author

G. F. Carini
Harlan U. Anderson, Missouri University of Science and TechnologyFollow
M. M. Nasrallah
Don M. Sparlin, Missouri University of Science and TechnologyFollow

Abstract

The dependence of the defect structure of Ca-doped YCrO₃ on oxygen activity and temperature was investigated by high temperature thermogravimetric measurements. Defect models developed from electrical conductivity data obtained in a previous study were used to interpret the thermogravimetric data. A correlation was found between the electrical conductivity and the thermogravimetric data which suggested that these data were concomitantly dependent on the acceptor dopant and oxygen vacancy dependance of the thermodynamic parameters. Kröger-Vink type diagrams showing the regions of stability with respect to oxygen activity and temperature were constructed. The TGA data show that Ca-doped YCrO₃ is even more stable toward reduction than doped LaCrO₃. © 1991.

Recommended Citation

G. F. Carini et al., "Defect Structure, Nonstoichiometry, And Phase Stability Of Ca-doped YCrO3," Journal of Solid State Chemistry, vol. 94, no. 2, pp. 329 - 336, Elsevier, Jan 1991.

The definitive version is available at https://doi.org/10.1016/0022-4596(91)90199-R

Department(s)

Materials Science and Engineering

Second Department

Physics

International Standard Serial Number (ISSN)

1095-726X; 0022-4596

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2023 Elsevier, All rights reserved.

Publication Date

01 Jan 1991