Articles
  • New approach to provide an electrical conductivity to structural ceramics
  • H. Kawaokaa,*, Y.-H. Kim, T. Sekino, Y.-H. Choab, T. Kusunose, T. Nakayama and K. Niihara
  • ISIR, Osaka University, Mihogaoka 8-1, Ibaraki, Osaka 567-0047, Japan a Energy Electronics Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 2, 1-1- 1 Umezono, Tsukuba, Ibaragi 305-8568, Japan b Division of New-Materials Engineering,College of Engineering, Chonbuk National University, Duckjin-Dong, 664-14, Duckjin-Gu, Chonju, Chonbuk 561-756, Korea
Abstract
New approach to provide an electrical conductivity to insulator structural ceramics was suggested. In this concept, sintering additives form conductive network after sintering and result in a great reduction of amount of conductive phase addition compared with particle dispersion method generally used. Na+ ionic-conductive silicon nitride and Na+ ionic-conductive magnesia ceramics were successfully fabricated by this method.

Keywords: Critical volume, Glassy Grain boundary phase, Ionic conductivity, Silicon nitride, Magnesia

This Article

  • 2001; 2(1): 1-3

    Published on Mar 31, 2001

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