DIAMOND SINTERED BODY WITH EXCELLENT THERMAL CONDUCTIVITY, AND METHOD FOR PRODUCING SAME: Fid-Bau Portal

DIAMOND SINTERED BODY WITH EXCELLENT THERMAL CONDUCTIVITY, AND METHOD FOR PRODUCING SAME

FUJIMURA TADAMASA / SHIOZAKI SHIGERU

PROBLEM TO BE SOLVED: To provide a diamond sintered body with an excellent thermal conductivity, and a method for producing the diamond sintered body in a simple, efficient and highly productive manner by consolidating diamond powder under high temperature and high pressure conditions.SOLUTION: A diamond sintered body with an excellent thermal conductivity is composed of diamond particles and has a thermal conductivity of 50 W/(m K) or more. A method for producing a diamond sintered body with an excellent thermal conductivity comprises sintering nano-sized diamond particles in an inert gas atmosphere at a temperature of 700-4000K and under a pressure of 1-15 GPa.SELECTED DRAWING: Figure 1

【課題】優れた熱伝導性を有するダイヤモンド焼結体、及びダイヤモンド粉末を、高温・高圧下で固めて、簡便に、効率よく、かつ高い生産性で前記ダイヤモンド焼結体を製造する方法を提供する。【解決手段】ダイヤモンド粒子からなり、熱伝導率が５０Ｗ／（ｍ・Ｋ）以上であることを特徴とする熱伝導性に優れたダイヤモンド焼結体、及び不活性ガス雰囲気中で、ナノサイズのダイヤモンド粒子を７００〜４０００Ｋの温度及び１〜１５ＧＰａの圧力下で焼結することを特徴とする熱伝導性に優れたダイヤモンド焼結体の製造法。【選択図】図１

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