Materials with layered structures X:: subsolidus phase diagram of the system FeIn2S4-FeIn2Se4

被引：26

作者：

Reil, S ^{[1
]}

Haeuseler, H ^{[1
]}

机构：

[1] Univ Gesamthsch Siegen, Anorgan Chem Lab, D-57068 Siegen, Germany

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1998年 / 270卷 / 1-2期

关键词：

layered materials; phase diagram; FeIn2S4-FeIn2Se4; crystal structure; FeIn2S2Se2;

D O I：

10.1016/S0925-8388(98)00351-X

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：

The system (1-x)FeIn2S4-xFeIn(2)Se(4) has been investigated by X-ray powder methods. The subsolidus phase diagram is constructed in the temperature interval 600-1000 degrees C. The spinel type FeIn2S4 exhibits a phase width up to the composition FeIn2S3Se and the layered FeIn2Se4, is formed for 1 greater than or equal to x greater than or equal to 0.65. A new layered compound is formed for 0.55 greater than or equal to x greater than or equal to 0.4 which crystallizes at temperatures below 850 degrees C in an alpha-FeGa2S4 structure with a=363.6 pm and c=1207.1 pm (x=0.5) for the hexagonal cell and at higher temperatures in the MgAl2S4-type with a=393.9 pm and c=3843.2 pm (x=0.5) for the hexagonal cell. Both structures have been refined by the Rietveld-method. All phase boundaries are nearly independent from temperature. (C) 1998 Elsevier Science S.A.

引用

页码：83 / 87

页数：5

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