Crystallography of potassium aluminate K2O•Al2O3

被引：17

作者：

de Kroon, AP ^{[1
]}

Schäfer, GW ^{[1
]}

Aldinger, F ^{[1
]}

机构：

[1] Max Planck Inst Met Forsch, Pulvermet Lab, D-70569 Stuttgart, Germany

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2001年 / 314卷 / 1-2期

关键词：

oxide materials; ceramics; thermal analysis; phase transition;

D O I：

10.1016/S0925-8388(00)01239-1

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 phase transformations of the binary compound K2O . Al2O3 (KAlO2) were investigated to facilitate the construction of K-(Mg)-beta -Al2O3 phase diagrams. At ambient pressure, KAlO2 consists of three different crystalline phases, and in this respect it is similar to LiAlO2 and NaAlO2. Above 1350 degreesC delta -KAlO2 is cubic, between 1350 and 600 degreesC, gamma -KAlO2 is tetragonal, and below 600 degreesC, beta -KAlO2 is orthorhombic. The transition behavior of KAlO2 is compared with that of NaAlO2 and LiAlO2. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：147 / 153

页数：7

共 30 条

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