Spectroscopic cathodoluminescence studies of additive free zinc oxide and varistor ceramics

被引：16

作者：

Halls, DC

Leach, C

机构：

[1] Univ Manchester, Manchester Mat Sci Ctr, Manchester M1 7HS, Lancs, England

[2] UMIST, Manchester M1 7HS, Lancs, England

[3] Univ London Imperial Coll Sci Technol & Med, Dept Mat, London SW7 2BP, England

来源：

ACTA MATERIALIA | 1998年 / 46卷 / 17期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1016/S1359-6454(98)00245-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Spectroscopic cathodoluminescence (CL) microscopy of pure polycrystalline zinc oxide and doped zinc oxide based varistor materials has been carried out in a scanning electron microscope. Differences in CL spectra were observed as a function of sample composition, sintering conditions and location within the sintered pellet. Additionally, variations in the spectra were observed between the grain cores and the grain boundary regions in coarse grained materials and are associated with changes in the defect structure and free carrier concentration of the zinc oxide. (C) 1998 Acta Metallurgica Inc. Published by Elsevier Science Ltd. All rights reserved.

引用

页码：6237 / 6243

页数：7

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