六方氮化硼是一种片状结构材料,解决其烧结致密化问题是提高陶瓷性能的主要途径.探讨了以六方氮化硼为基体,Al2O3、Y2O3和B2O3为添加剂,在N2气氛下,于1 700～1 850℃左右的无压烧结.研究结果表明,随Y2O3和Al2O3的含量的增加,烧结体的致密度明显提高、强度明显增加.并且B2O3作为一种烧结助剂可以有效地提高烧结体的致密度、降低材料的烧结温度.
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