機能構築微粒子調製法によるTiB2のナノ微細化

大久保 貴広; 西山 勝廣; 小野 哲央; 丹羽 進; 河野 通; 酒井 秀樹; 小石 真純; 阿部 正彦

doi:10.2497/jjspm.52.3

Paper

Nano-atomization of Titanium Diboride Using Function-Building Fine Particle Preparation Method

Takahiro Ohkubo, Katsuhiro Nishiyama, Tetsuo Ono, Susumu Niwa, Tohru Kohno, Hideki Sakai, Masumi Koishi, Masahiko Abe

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Keywords: function-building fine particle preparation, titanium diboride, metallothermic reduction

JOURNAL OPEN ACCESS

2005 Volume 52 Issue 1 Pages 3-9

DOI https://doi.org/10.2497/jjspm.52.3

Details

Abstract

Fine particles of TiB₂ were prepared by metallothermic reduction (MTR) of TiO₂ with Mg or MgO, where we examined the synthesis conditions to obtain smaller fine particles. As a result, we found that theory of function-building fine particle preparation could be applied to synthesize nano-atomized fine particles of TiB₂. The temperature of MTR process also decreased with reducing particle size of TiO₂. When TiO₂ of ST-01, of which particle size is the smallest in our study, was used as a source of titanium and treated at 550°C, the smallest particles of TiB₂ were obtained.

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