α/β相転移が窒化ケイ素の粒成長速度に及ぼす影響

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タイトル別名
  • Influence of α to β Phase Transformation on Grain Growth Rate of Silicon Nitride
  • Influence of アルファ to ベータ Phase Transfor

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説明

The influence of the α to β phase transformation on the grain growth rate during liquid phase sintering of Si3N4 is theoretically discussed. When fine starting powders are used, the grain growth rate shows no significant difference between α-rich powders and β-rich powders, and rodlike coarse grains are generated irrespective of the crystal phase of powder. In contrast, the growth rate difference becomes more pronounced with increasing coarseness of the starting powders, the grain growth rate of β-rich powders decreases more rapidly than that of α-rich powder.

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