利用燃烧合成技术成功制备出单相Y α-SiAlON粉体,酸洗除去玻璃相后以无水乙醇为介质进行超声分散.将分散后的粉体作为晶种,按照一定比例添加到原料粉末中,通过无压烧结得到致密的Yα-SiAlON陶瓷,研究了添加晶种对烧结产物的相组成和微观形貌的影响.实验结果表明,添加晶种有利于减少中间产物的生成,得到单相Y α-SiAlON,同时可以促进柱状晶的发育.
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