The shrinkage of special ceramic material with different isostatic pressing pressure and dif- ferent green density were studied. As a result, higher isostatic pressing pressure, higher the green density, smaller the shrinkage of special ceramic; for similar materials, higher ignition loss rate, higher the shrinkage.%本文研究了特种陶瓷原料在不同压力下等静压成形后坯体密度的变化和坯体烧成后的收缩率变化规律，结果表明等静压成形压力越大，坯体密度越大，烧结后的收缩率越小；对于同类原料，烧失率越大，烧成收缩率越大。
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