Very low thermal expansion in TaO2F

被引：53

作者：

Tao, JZ ^{[1
]}

Sleight, AW ^{[1
]}

机构：

[1] Oregon State Univ, Dept Chem, Corvallis, OR 97331 USA

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2003年 / 173卷 / 01期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0022-4596(03)00077-X

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

X-ray diffraction data for TaO2F from 20 to 400 K show a thermal expansion so low that we cannot be certain whether it is positive or negative. We estimate the absolute value of the thermal expansion coefficient to be less than 6 x 10(-7)/K. This then is comparable to that of amorphous SiO2, and is apparently unique behavior for a cubic material over such a large temperature range. (C) 2003 Elsevier Science (USA). All rights reserved.

引用

页码：45 / 48

页数：4

共 11 条

[1] THERMAL-EXPANSION OF CERAMICS IN PB(ZN1/3NB2/3)O3-BASED SOLID-SOLUTION SYSTEMS [J].