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研究了Al2O3原料在不同热处理条件下的相组成和颗粒形貌以及Al2O3粉末特征对Na-β”－Al2O3烧结性能的影响．实验表明，只有α-Al2O3才能烧结成致密的β“－Al2O3陶瓷．
The phase composition and particle morphology of Al2O3 raw material under different heat treatment conditions and the influence of the characteristics of Al2O3 powder on the sintering properties of Na-β ”-Al2O3 were investigated. The results show that only α-Al2O3 can be sintered into dense β " - Al2O3 ceramics .