Abstract: In addition to a high porosity and specific area, foam SiC ceramic materials possess other characteristics, for example, low density, good thermal, mechanical, electrical and acoustical properties. All the characteristics make them attractive for a wide range of applications in chemical industry, machinery, bio-field and environmental protection. In this paper, several main fabrication techniques of foam SiC ceramic materials are summarized, including powder sintering, solid state reaction sintering, silicon resin pyrolysis and chemical vapor deposition. Some excellent properties of SiC foams, for example, special three-dimensional reticular structure, fluid resistance, oxidation resistance, ability of absorbing microwave are reviewed. Examples of application for the foam materials, such as catalysis, filtration, biological and so on are introduced. In addition, application of SiC foams as column internals for chemical industry is presented. Higher demand for SiC foams requires not only integration and renovation of current technologies, but also development of their potential advantages.

Key words: foam SiC ceramic , fabrication techniques, properties, application

摘要： 泡沫碳化硅陶瓷材料除了孔隙率高、比表面积大，还具有相对密度小、优良的热学、力学、电学、声学性能等特性，已经广泛应用于化工、机械、生物、环保等领域。本文总结了泡沫碳化硅陶瓷材料的主要制备技术，包括粉末烧结法、固相反应烧结法、含硅树脂热解法以及气相沉积法等。阐述了泡沫碳化硅陶瓷材料的几种优良特性，包括结构特征、流体阻力、抗氧化性、吸波性等。最后举例介绍了该陶瓷在催化、过滤、生物学等领域的应用现状，重点介绍了其作为塔内件在化工领域中的应用，指出为满足对泡沫碳化硅陶瓷更高性能的需求，不仅要对现有技术进行集成创新，更要挖掘和开发泡沫碳化硅的潜在优势。

关键词: 泡沫碳化硅陶瓷, 制备, 特征, 应用