闭孔金属基复合泡沫材料制备技术研究进展

Research progress and preparation of closed-cell metal matrix syntactic foams

闭孔金属基复合泡沫材料是一种新型多孔复合材料,主要以空心微球和基体粉末为原料,将空心微球填充到金属或合金基体中复合而成;因其具有轻质、高强、良好的阻尼、吸能、隔热、隔音及电磁屏蔽等诸多优异性能,在减震、缓冲阻尼及防撞击等相关领域具有广泛的应用价值。本文主要介绍了利用空心微球制备闭孔金属基复合泡沫材料的方法,总结了其制备过程中存在的问题,并概述了闭孔金属基复合泡沫材料的应用。

Closed-cell metal matrix syntactic foam(MMSF) is a kind of new porous composite materials formed by embedding the hollow microspheres into the metal or alloy matrix, using the hollow microspheres and metal powders as the raw materials. Due to the lightweight, high strength, good damping, energy-absorbing capability, thermal insulation, sound absorption, electromagnetic shielding, and other excellent properties, the closed-cell metal matrix syntactic foams can be widely used in the fields of shock absorption, buffer damping, and impact prevention. The preparation method of the closed-cell metal matrix syntactic foams by hollow microspheres were introduced in this paper, some problems existing in the preparation process were summarized and the application of the closed-cell metal matrix foams were overviewed.