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本文介绍了金刚石、立方氮化硼、碳化硅、磷化硼、氧化铍和氮化铝等六种室温热导率高于1W/cm.K的非金属单晶及其多晶(烧结体)材料,讨论了影响这类材料热导率的主要因素。氮化硅和Sialon室温下的热导率虽然低于1W/cm.K,但鉴于它们在现代工程材料中日趋重要的地位,也一并作了介绍与分析。并给出十七种材料的晶体结构和德拜温度及热导率等参数。
In this paper, six kinds of non-metallic single crystals with room temperature thermal conductivity higher than 1 W / cm.K, such as diamond, cubic boron nitride, silicon carbide, boron phosphide, beryllium oxide and aluminum nitride, and their polycrystalline ) Materials, discusses the main factors affecting the thermal conductivity of such materials. Silicon nitride and Sialon Although the thermal conductivity at room temperature below 1W / cm.K, but in view of their increasingly important position in modern engineering materials, but also made a presentation and analysis. The crystal structure, Debye temperature and thermal conductivity of seventeen kinds of materials are also given.