Formation and decomposition of the Bi2TeO6 compound

被引：14

作者：

Udovic, M ^{[1
]}

Valant, M ^{[1
]}

Suvorov, D ^{[1
]}

机构：

[1] Jozef Stefan Inst, Adv Mat Dept, Ljubljana 1000, Slovenia

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2004年 / 24卷 / 06期

关键词：

bismuth tellurates; calcination; x-ray methods and electron microscopy; Bi2TeO5; Bi2TeO6;

D O I：

10.1016/S0955-2219(03)00399-6

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

XRD and SEM studies of the formation of Bi2TeO6 Confirmed that the Bi2TeO6 compound forms in an oxygen atmosphere and also during prolonged calcination in air. At elevated temperatures the compound decomposes with the degree of the decomposition being dependent on the oxygen partial pressure. The decomposition products were identified as Bi6Te2O15 and the high-temperature phase 2Bi(2)O(3).3TeO(2+x). The sublimation of TeO2 was proved not to be the main reason for the appearance of the Bi6Te2O15 phase during the decomposition of Bi2TeO6. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：953 / 958

页数：6

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