Hot-Pressed BN–AlN Ceramic Composites of High Thermal Conductivity
Hot-Pressed BN–AlN Ceramic Composites of High Thermal Conductivity
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DOI：
10.1143/jjap.29.683
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发表时间：
1990-04
影响因子：
1.5
通讯作者：
T. Kanai;K. Tanemoto;H. Kubo
中科院分区：
文献类型：
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作者：
T. Kanai;K. Tanemoto;H. Kubo
采用单轴热压法制备了六方氮化硼-氮化铝（75- 25wt%）陶瓷复合材料。通过优化烧结助剂电石的添加量，烧结体垂直于热压轴方向的热导率达到247 W/（m·K）。复合材料在结构和热导率方面具有明显的各向异性。探讨了高导热系数的揭示机理。
Hexagonal boron nitride-aluminum nitride (75–25 wt%) ceramic composites are synthesized by uniaxial hot pressing. High thermal conductivity, 247 W/(m·K), is attained for the perpendicular direction of the hot-pressing axis of the sintered body, by optimizing the amount of added sintering aid, calcium carbide. The composites have remarkable anisotropy with respect to structure and thermal conductivity. The revelation mechanism of high thermal conductivity is discussed.