THERMODYNAMIC STUDY OF THE CU-SR-O SYSTEM

被引：49

作者：

ALCOCK, CB

LI, BZ

机构：

[1] Center for Sensor Materials, University of Notre Dame, Notre Dame, Indiana

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1990年 / 73卷 / 05期

关键词：

copper; non‐stoichiometry; phases; strontium; thermodynamics;

D O I：

10.1111/j.1151-2916.1990.tb05176.x

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The Gibbs energies of formation of the inter‐oxide compounds in the Cu‐Sr‐O system have been obtained from solid‐state electrochemical measurements in the temperature range 900 to 1300 K. Cells employing yttria‐stabilized zirconia or single‐crystal calcium fluoride as electrolyte were used in studies of SrCu2O2, Sr2CuO3, SrCuO2, and “Sr3Cu5O8+z.” The oxygen potential vs stoichiometry dependence was studied, particularly for this last compound, by thermogravimetry at a few selected temperatures in the oxygen partial pressure interval 1 × 101 to 1 × 105 Pa. Based on the results of emf measurement, thermogravimetric study, and X‐ray powder diffraction, phase relations in this system were calculated. Copyright © 1990, Wiley Blackwell. All rights reserved

引用

页码：1176 / 1180

页数：5

共 13 条

[1] THERMODYNAMICS OF SOLID SYSTEM CAO-SIO2 FROM ELECTROMOTIVE FORCE DATA [J].