研究了精密铸造叶片用氧化铝基复合陶瓷型芯刚玉粉料粒度对型芯物相、形貌、气孔率、抗蠕变性能、脱芯性能的影响.研究结果表明:粉料粒度对Al2O3基复合陶瓷型芯材料的气孔率、线收缩率和高温蠕变性能均有影响.根据实验数据,分析了几种粉料粒度对陶瓷型芯综合性能影响的机理,同时讨论了不同粉料粒度型芯的烧结机理.
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