Abstract
Aluminum metal matrix composites (AMMCs) are light-weight materials having wide-spread use in the automobile and aerospace industries due to their attractive physical and mechanical properties. The promising mechanical properties of AMMCs are ascribed to the size and distribution of the reinforcement, as well as to the grain size of the matrix. Microwave rapid sintering involves internal heating of aluminum compacts by passing microwave energy through them. The main features of the microwave sintering technique are a short processing time and a low energy consumption. The aim of this review article is to briefly present the microwave rapid sintering process and to summarize the recent published work on the sintering and properties of pure Al and Al-based matrix composites containing different reinforcements.
Highlights
Metal matrix composites (MMCs) can be categorized under advanced materials, as they can be tailored using fundamental principles to cater to end engineering applications
The Al-based matrix composites (AMMCs) reinforced by amorphous alloy/metallic glass/ceramic particles produce a high performance composite compared to Al-based alloys
Zheng et al [30] investigated the microstructure and mechanical properties of Al-2024 and Al-2024-Fe composites synthesized by mechanical milling and hot extrusion
Summary
Metal matrix composites (MMCs) can be categorized under advanced materials, as they can be tailored using fundamental principles to cater to end engineering applications. Al alloys have advantages of being economically inexpensive, mechanically strong and lightweight These are the most desirable features in selecting Al for automobile industry keeping in view the present days’ demand for higher efficiency and sky-scraping fuel cost. The literature review presents limited studies on the applications of microwave processing of materials, as well as particle-reinforced Al-metal matrix composites. The objectives of this review article are (i) to briefly present the microwave sintering technique; (ii) to review the effect of the microwave sintering; (iii) to highlight the role of reinforcement size and the effect of the volume fraction of reinforcement and (iv) to show the influence of microwave heating behavior and the extrusion process on the microstructure, physical, thermal and mechanical characteristics of pure Al and Al-based metal matrix composites
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