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
收藏
页码：1939 / 1943
页数：5
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