Fabrication of silicon nitride ceramics with electrical conductivity

Yoon Ho Kim, T. Sekino, H. Kawaoka, T. Kusunose, T. Nakayama, K. Niihara

研究成果: Conference contribution

抄録

The electrical conductivity was provided to structural ceramics by controlling the grain boundary phase. We focused on the grain boundary phase of Si3N4 ceramics, which can be considered as an infinite network for conducting paths. In this study, we investigated the correlationship of the microstructure, mechanical properties, and electrical conductivity of Si3N4 ceramics with V2O5 based glasses. The Si3N4 ceramic with V2O5 based glasses were successfully fabricated by controlling the composition of grain boundary phase. Fabricated materials by a PECS method indicated a very fine microstructure. The mechanical properties of Si3N4 ceramics with V2O5 based glasses were not good compared to those of conventional Si3N4. However, the values for the SNVB and the SNVBA were four or six orders of magnitude higher at room temperature and had excellent mechanical properties compared to pure V 2O5 based glasses.

本文言語English
ホスト出版物のタイトルEco-Materials Processing and Design VI - Proceedings of the 6th International Symposium on Eco-Materials Processing and Design, ISEPD-6
出版社Trans Tech Publications Ltd
ページ501-505
ページ数5
ISBN(印刷版)0878499660, 9780878499663
DOI
出版ステータスPublished - 2005
外部発表はい
イベント6th International Symposium on Eco-Materials Processing and Design, ISEPD-6 - Jinju, Korea, Republic of
継続期間: 2005 1月 162005 1月 18

出版物シリーズ

名前Materials Science Forum
486-487
ISSN(印刷版)0255-5476
ISSN(電子版)1662-9752

Other

Other6th International Symposium on Eco-Materials Processing and Design, ISEPD-6
国/地域Korea, Republic of
CityJinju
Period05/1/1605/1/18

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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