A new high-pressure phase of LiAlO2

被引：31

作者：

Li, XJ

Kobayashi, T

Zhang, FX

Kimoto, K

Sekine, T

机构：

[1] Natl Inst Mat Sci, Adv Mat Lab, Tsukuba, Ibaraki 3050044, Japan

[2] Max Planck Inst Solid State Res, D-70569 Stuttgart, Germany

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2004年 / 177卷 / 06期

基金：

日本学术振兴会;

关键词：

D O I：

10.1016/j.jssc.2003.12.014

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A new high-pressure phase of LiAlO2 has been recovered through a shock recovery technique at pressures above 9 GPa. This new phase has been refined as a tetragonal structure with lattice parameters of a = 0.38866(8) nm and c = 0.83001(18) nm. Its calculated density is 3.51 g/cm(3). about 34% denser than gamma-LiAlO2. The aluminum and lithium cations in this new phase are six-fold coordinated, as in alpha-LiAlO2, and the structure of this new phase is similar to tetragonal LiFeO2. This new high-pressure phase is stable at temperatures up to 773 K. (C) 2004 Elsevier Inc. All rights reserved.

引用

页码：1939 / 1943

页数：5

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