High temperature properties of ZnO ceramics studied by the impulse excitation technique

被引：14

作者：

Swarnakar, A. K. ^{[1
]}

Donzel, L. ^{[2
]}

Vleugels, J. ^{[1
]}

Van der Biest, O. ^{[1
]}

机构：

[1] Katholieke Univ Leuven, Dept Met & Mat Engn, B-3001 Louvain, Belgium

[2] ABB Switzerland, Corp Res, CH-5405 Baden, Switzerland

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2009年 / 29卷 / 14期

关键词：

Zinc oxide; Bismuth oxide; Antimony oxide; E-modulus; Damping; Impulse excitation technique;

D O I：

10.1016/j.jeurceramsoc.2009.04.039

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：

This study reports on impulse excitation technique (IET) measurements up to 900 degrees C in air performed on various grades of ZnO ceramics, containing bismuth and antimony oxides as dopants. The IET provides dynamic elastic (E-modulus) and damping properties as a function of temperature. In order to correlate the IET behaviour with the microstructure and phase evolution, SEM and high temperature XRD (HT-XRD) analysis were carried out. Damping peaks related to phase transitions were observed in the samples containing Bi2O3 intergranular phase. Three other peaks are tentatively interpreted as point defect relaxations. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：2991 / 2998

页数：8

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