New phase transitions in the solid solution system (Ca1-xSrx)(8)[Al12O24](WO4)(2)

被引：8

作者：

Hu, X

Depmeier, W

Wildermuth, G

Doyle, S

机构：

[1] CHRISTIAN ALBRECHTS UNIV KIEL,INST MINERAL,D-24098 KIEL,GERMANY

[2] HAHN MEITNER INST BERLIN GMBH,D-14109 BERLIN,GERMANY

[3] UNIV KONSTANZ,FAK CHEM,D-78434 CONSTANCE,GERMANY

[4] HASYLAB,D-22063 HAMBURG,GERMANY

来源：

ZEITSCHRIFT FUR KRISTALLOGRAPHIE | 1996年 / 211卷 / 10期

关键词：

phase transition; powder diffraction; crystal structure; aluminate sodalite; sodalite;

D O I：

10.1524/zkri.1996.211.10.679

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

The intermediate part of the cation substitution series (Ca1-xSrx)(8)[Al12O24](WO4)(2) of the aluminate sodalites Ca-8[Al12O24](WO4)(2) and Sr-8[Al12O24](WO4)(2) has been studied as a function of temperature and composition, with emphasis on the range 0.50 less than or equal to x less than or equal to 0.60. A composition-induced phase transition occurs at x approximate to 0.56 at room temperature and a temperature-induced phase transition from tetragonal to possibly cubic on cooling was observed below room temperature. A tentative x - T phase diagram is given.

引用

页码：679 / 688

页数：10

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[2]

COCKCROFT JC, 1993, PROFIL A PACKAGE RIE

[3] PHASE-TRANSITION IN SR8[AL12024](MOO4)2 ALUMINATE SODALITE (SAM) [J].