高导热氮化铝陶瓷成型技术的研究进展

Research Progress in Shaping Technology of AlN Ceramics with High Thermal Conductivity

AlN陶瓷具有热导率高、与Si热膨胀系数相匹配、化学稳定性好等特点,在电子信息、能源化工、交通运输等领域具有广阔的应用前景,已经引起国内外研究者的广泛关注。高导热AlN陶瓷的成型技术对于其实际工程应用至关重要,本文详细综述了AlN陶瓷的成型技术方面的研究进展,并系统比较了模压成型、流延成型、注射成型、凝胶注模成型以及3D打印技术在制备AlN陶瓷零部件方面的优缺点。此外,介绍了3D打印技术在复杂形状AlN陶瓷零部件成型中的优势,并对AlN陶瓷零部件成型技术的发展趋势与前景进行了展望。

AlN ceramics have high thermal conductivity,close thermal expansion coefficient to that of Si and excellent chemical inertness,thus having broad applications in the fields of electronic information,energy and chemical industry,transportation and so on.As a result,they have attracted great attentions of both the domestic and overseas researchers.The shaping of AlN ceramics with high thermal conductivity is crucial for their practical engineering applications.In this paper,the research progress in the forming and preparation of AlN ceramics was overviewed.The advantages and disadvantages of molding pressing,tape casting,injection molding,gel casting and 3D printing technology for the preparation of AlN ceramic parts were systematically compared.In addition,the superiority of 3D printing technology for the molding and preparation of complex-shaped AlN ceramic parts was elaborated.The development trend and prospect of the shaping technology of AlN ceramic parts were discussed.