Ta多孔質体の焼結挙動と静電容量特性への粒径の影響 Effect of Particle Size on Sintering Behaviours and Capacitance Characteristics of Porous Ta compacts

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Ta has been mainly used for capacitor. Recently, electrolytic capacitor of Ta has been demanded to be smaller size and higher performance. But, there is few reports about sintering of Ta. Then, in this work, the sintering behaviors and the capacitance. of porous Ta sintered by capsule free HIP sintering and vacuum sintering about two kinds of Ta powders with different particle size of 1.7μm (No.A) and 3.5μm (No.B), were discussed. The relative density of sintered Ta compact was independent on particle size of starting powder and increased with an increase in sintering temperature and sintering time. The coarsening of grain increased markedly in the compact sintered from smaller particles as compared to the compact from larger particles. The capacitance of sintered compact from No.A was larger than that from No.B. Tans of No.B was smaller than that from No.A.

収録刊行物

  • 粉体および粉末冶金  

    粉体および粉末冶金 45(8), 721-726, 1998-08-15 

    Japan Society of Powder and Powder Metallurgy

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各種コード

  • NII論文ID(NAID)
    10002052548
  • NII書誌ID(NCID)
    AN00222724
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    05328799
  • NDL 記事登録ID
    4540062
  • 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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