Advanced liquid state processing techniques for ex-situ discontinuous particle reinforced nanocomposites: A review

Science and Technology of Materials Pub Date : 2018-05-01 DOI:10.1016/j.stmat.2018.05.005

C. Kannan, R. Ramanujam

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引用次数: 7

Abstract

Recent times, metal matrix composites (MMC) are considered as candidate materials for numerous applications such as aerospace, automotive and military industries due to improved properties over the conventional metals and alloys. Out of the different categories of metal matrix composites, discontinuous particulate reinforced composites are preferred for industrial applications due to low manufacturing cost. High fracture toughness, improved ductility and machinability characteristics support the selection of metal matrix nanocomposites (MMnC) over conventional composites for different applications. The majority of nanocomposites are produced through liquid state processing due to faster processing time and economy. However, the conventional liquid processing method leads to poor wetting of reinforced nanoparticles by molten metal that degrades the quality of the fabricated nanocomposite. This paper reviews some of the advanced liquid state processing techniques adopted for the improved wettable characteristics of nanoparticles and their uniform distribution in the metal matrix.

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非原位非连续颗粒增强纳米复合材料的先进液相处理技术综述

近年来，金属基复合材料(MMC)被认为是航空航天、汽车和军事工业等众多应用的候选材料，因为它比传统的金属和合金具有更好的性能。在不同种类的金属基复合材料中，由于制造成本低，不连续颗粒增强复合材料是工业应用的首选材料。高断裂韧性，改进的延展性和可加工性特性支持金属基纳米复合材料(MMnC)比传统复合材料在不同应用中的选择。由于加工速度快、经济，大多数纳米复合材料是通过液态加工生产的。然而，传统的液体处理方法导致增强纳米颗粒被熔融金属润湿性差，从而降低了制备的纳米复合材料的质量。本文综述了为改善纳米颗粒的可湿性及其在金属基体中的均匀分布而采用的一些先进的液相处理技术。

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Science and Technology of Materials

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