High-temperature X-ray diffraction study of the lanthanum aluminium titanate perovskite La0.683Ti0.95Al0.05O3

被引：21

作者：

Yashima, M

Ali, R

Yoshioka, H

机构：

[1] Tokyo Inst Technol, Interdisciplinary Grad Sch Sci & Engn, Dept Mat Sci & Engn, Midori Ku, Yokohama, Kanagawa 2268502, Japan

[2] Hyogo Prefectural Inst Ind Res, Kobe, Hyogo 6540037, Japan

来源：

SOLID STATE IONICS | 2000年 / 128卷 / 1-4期

关键词：

oxide ionic conduction; lanthanum titanate perovskite; structure; X-ray diffraction; lanthanum aluminum titanate;

D O I：

10.1016/S0167-2738(99)00345-8

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：

High-temperature X-ray powder diffraction experiments have been performed to investigate precisely the lattice parameters of an ionic conducting material La0.683Ti0.95Al0.05O3 perovskite. This material was orthorhombic (space group P/mmm) at 29 and 192 degrees C, while it was tetragonal (space group P4/mmm) from 392 to 1402 degrees C. The orthorhombic-tetragonal phase transition is a possible explanation for the change in the temperature dependence of ionic conductivity around 400 degrees C. (C) 2000 Elsevier Science BN. All rights reserved.

引用

页码：105 / 110

页数：6

共 7 条

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[2]

SAKURAI T, 1967, XRAY ANAL CRYSTAL ST, P356

[3] X-RAY-DIFFRACTION AND MICROSTRUCTURAL INVESTIGATION OF THE AL2O3-LA2O3-TIO2 SYSTEM [J].