ON THE FORMATION OF DELAFOSSITE-TYPE OXIDES AND SOLID-SOLUTIONS

被引：6

作者：

DOUMERC, JP ^{[1
]}

POUCHARD, M ^{[1
]}

HAGENMULLER, P ^{[1
]}

ELAZHARI, M ^{[1
]}

AMMAR, A ^{[1
]}

ELAATMANI, M ^{[1
]}

机构：

[1] UNIV CADI AYYAD,FAC SCI,CHIM SOLIDE MINERAL LAB,MARRAKECH,MOROCCO

来源：

MATERIALS RESEARCH BULLETIN | 1992年 / 27卷 / 01期

关键词：

DELAFOSSITES; OXIDES;

D O I：

10.1016/0025-5408(92)90040-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In the delafossite-type AMO2 (A = Cu, Ag) oxides, the ionic radius of the trivalent element M may vary between 0,54 and 1,03 angstrom. However, the formation of solid solutions of formula CuM'1-xM"xO2 is possible only if the ionic radius difference is not too large. Such a situation occurs for M' = La3+ and M" = Y3+, but not for M" = Ga3+. On the other hand, unsuccessful attempts to prepare binary delafossites with A = Cu and M = Ni or Tl as well as other general considerations show that redox equilibria and electronic structure play a major part in the stability of these materials.

引用

页码：39 / 43

页数：5

共 6 条

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[3]

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[4]

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[5]

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