Dependence of Pr3+ distributions on the composition of Pr3+-beta''-alumina

被引：9

作者：

Kohler, J ^{[1
]}

Urland, W ^{[1
]}

机构：

[1] UNIV HANNOVER,SONDERFORSCH BEREICH 173,D-30167 HANNOVER,GERMANY

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 1996年 / 124卷 / 01期

关键词：

D O I：

10.1006/jssc.1996.0221

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The structures of completely exchanged Na+/Pr3+-beta ''-Al2O3 crystals have been investigated by single crystal X-ray diffraction methods at room temperature, The ionic distributions within the conduction layers are correlated with the crystal compositions. A decreasing cation content in the layers increases the lattice parameter c connected with an expansion of the conduction slabs resulting in an increased Beevers-Ross (BR) site occupancy by Pr3+ ions, Up to 52% of the lanthanide ions are found to occupy the lower coordinated BR positions. (C) 1996 Academic Press, Inc.

引用

页码：169 / 175

页数：7