Abstract Porous intermetallic compounds fabricated by reactive synthesis of elemental powders exhibit good pore formation capability and unique properties integrating the advantages of both metals and ceramics. The following aspects for the reactively synthesized porous intermetallics are reviewed: (1) near-net shaping fabrication process of porous intermetallics through an elemental powder mixture, (2) theoretical basis of the reactive synthesis procedure, (3) the pore structure properties and their quantitative relations, (4) the material properties including the mechanical property, acid and alkali corrosion resistivity, high temperature oxidation and sulfuration resistance, machinability, weldability, thermal shock resistance, hydrogen evolution activity, etc. and (5) applications of porous intermetallics in industrial filtration fields.

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单质粉末反应合成多孔金属间化合物研究进展

摘要 由元素粉末反应合成制备的多孔金属间化合物具有良好的成孔能力和独特的性能，集金属和陶瓷的优点于一身。综述了反应合成多孔金属间化合物的以下几个方面：（1）通过元素粉末混合物近净成形多孔金属间化合物的制备过程，（2）反应合成过程的理论基础，（3）孔结构性质及其孔隙结构特性。定量关系，(4) 材料性能包括力学性能、耐酸碱腐蚀性能、抗高温氧化和硫化性能、切削加工性、焊接性、抗热震性、析氢活性等；(5) 多孔金属间化合物在金属间化合物中的应用工业过滤领域。