Title of article
Effect of Al2O3 on the microstructure and electrical properties of WO3-based varistor ceramics
Author/Authors
Makarov، نويسنده , , V.O. and Trontelj، نويسنده , , M.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2000
Pages
3
From page
747
To page
749
Abstract
The influence of Al2O3 additive on the electrical properties and microstructure of (Na,Mn)-doped WO3 ceramics was studied. Addition of Al2O3 shifts the current–voltage characteristics to higher fields and inhibits the grain growth of the WO3-based non-Ohmic ceramics. The non-linearity coefficient of the current–voltage characteristics of the Al2O3-doped WO3 ceramics increases with sintering temperature and attains a maximum value at 1250°C.
Keywords
grain growth , varistors , Al2O3 , WO3 , Microstructure-final , Electrical properties
Journal title
Journal of the European Ceramic Society
Serial Year
2000
Journal title
Journal of the European Ceramic Society
Record number
1404433
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