高純度アルミナのスリップキャスティング成形とその焼結体

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タイトル別名
  • Slip casting and sintering of high purity alumina.
  • コウ ジュンド アルミナ ノ スリップ キャスティング セイケイ ト ソノ シ

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説明

Slip casting method for submicron high purity alumina was developed by optimizing the concentration of slip and dispersant, and using resin mold as a substitute for plaster and apparatus with vacuum⋅pressure system. The results obtained were summarized follows:<BR>1) High density green body (>60%) was obtained.<BR>2) High strength alumina (700-800MPa) was obtained after sintering the body at 1250-1300°C. This value is equal to that of alumina sintered under HIP and HP at 1500-1600°C.<BR>3) This high strength comes from uniformally controlled small grain size(1-3μm) of sintered body which results in grain fracturing instead of grain boundary fracturing of conventional alumina ceramics.

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