HIGH-TEMPERATURE ELECTRICAL BREAKDOWN IN SINGLE-CRYSTAL AND POLYCRYSTALLINE MGO

被引：5

作者：

MURATA, H

CHOI, SC

KOUMOTO, K

YANAGIDA, H

机构：

[1] Univ of Tokyo, Dep of Industrial, Chemistry, Tokyo, Jpn, Univ of Tokyo, Dep of Industrial Chemistry, Tokyo, Jpn

来源：

JOURNAL OF MATERIALS SCIENCE | 1985年 / 20卷 / 12期

关键词：

ELECTRIC INSULATING MATERIALS - MAGNETOHYDRODYNAMIC CONVERTERS - Materials - SOLIDS - Electric Breakdown;

D O I：

10.1007/BF00559341

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Recently MgO has been expected to be applied to an electrical insulator for MHD power generation. The data for the electrical breakdown strength at high temperatures are required in this context. Electrical breakdown strengths of single crystal and polycrystalline MgO were measured at 1000 to 1400 degree C. The breakdown strength of single crystal MgO decreased with increase in the dislocation density. The breakdown strength of polycrystalline MgO indicated a significant effect of the microstructural factors.

引用

页码：4507 / 4513

页数：7

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