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) Electrical Conductivity of MoSi_2-SiC Ceramics Prepared by Reaction Sintering of Polysilazane with Molybdenum Metal

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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.

収録刊行物

  • 粉体および粉末冶金  

    粉体および粉末冶金 45(12), 1162-1165, 1998-12-15 

    Japan Society of Powder and Powder Metallurgy

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各種コード

  • NII論文ID(NAID)
    10002053419
  • NII書誌ID(NCID)
    AN00222724
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    05328799
  • NDL 記事登録ID
    4629453
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-274
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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