Reactive Sintering of TiC-TiB_2 Composite Prepared with Mechanochemically-Processed Precursor

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概要

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• MC precursor powders were produced by ball-milling of Ti-C-B (2:1:2) mixed powders for various times of 10-40 h using a planetary ball mill at rotary speed of 290/650 rpm. TiC-TiB<SUB>2</SUB> composites were produced by reactive hot-pressing of the MC precursors at 1400-2000°C. The hardness generally increases with densification and decreaes with the increase of crystallite size. The densification is enhanced by sintering temperature, heat of reaction and fineness of mixed powders produced by ball-milling. Maximum values of the relative density and the micro-Vickers hardness of the composite were 97.5% and 25.5 GPa, respectively, for the milling time, 20h and the sintering temperature, 1900°C.

• 社団法人 粉体粉末冶金協会の論文
• 2000-12-15

著者

• Kudaka Katsuya

  Department Of Appllied Chemistry Faculty Of Engineering Tokyo Institute Of Polytechnics

• Iizumi Kiyotaka

  Department Of Appllied Chemistry Faculty Of Engineering Tokyo Institute Of Polytechnics

• IZUMI Hiraomi

  Graduate School of Engineering,Tokyo institute of Polytechmics

• SASAKI Takeshi

  Graduate School of Engineering,Tokyo institute of Polytechmics

• Izumi Hiraomi

  Graduate School Of Engineering Tokyo Institute Of Polytechmics

• 飯泉 清賢

  Department of Appllied Chemistry,Faculty of Engineering,Tokyo Institute of Polytechnics

• 泉 平臣

  Graduate School of Engineering,Tokyo institute of Polytechmics

• 佐々木 健

  Graduate School of Engineering,Tokyo institute of Polytechmics

関連論文

• Physical Properties of Non-Stoichiometric Sintered TiO Ceramics
• Preparation of CrB by Reaction between Chromium and Amorphous Boron with Addition of Halides (II)
• Reactive Sintering of TiC-TiB_2 Composite Prepared with Mechanochemically-Processed Precursor

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