Electrical Conductivity of MoSi2-SiC Cera1mics Prepared by Reaction Sintering of Polysilazane with Molybdnum Metal (特集 ナノ構造制御と新機能発現)

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概要

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• To develop high-temperature heat elements with a small temperature-coefficient electrical conductivity, small-grained MoSi<SUB>2</SUB>-SiC ceramics were prepared by reaction sintering ceramic precursor with molybdenum powder. By second sintering at 1773 K for 10 h, two phases of MoSi<SUB>2</SUB> and β-SiC were formed. The average grain size of both MoSi<SUB>2</SUB> and SiC ranges several tens nanometers. Electrical conductivity measurement revealed that conductive behavior changed from semiconductive to metallic with increasing molybdenum disilicide content. 54.3 wt% MoSi<SUB>2</SUB>/β-SiC composite showed an almost constant temperature coefficent in the temperature range at around to 600-850 K.

• 社団法人 粉体粉末冶金協会の論文
• 1998-12-15

著者

• Mukaida Ken-ichi

  Muroran Institute Of Technology

• MIYAMOTO Masayoshi

  Muroran Institute of Technology

• SASAKI Makoto

  Muroran Institute of Technology

• Mukaida Kenichi

  Muroran Institute of Technology

関連論文

• Electrical Conductivity of MoSi2-SiC Cera1mics Prepared by Reaction Sintering of Polysilazane with Molybdnum Metal (特集 ナノ構造制御と新機能発現)

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