Research status of medium/high volume fraction SiCp/Al composites prepared by high-pressure seepage method
The preparation of SiCp/Al composites by high-pressure seepage method has attracted attention of many scientific researchers and is widely applied due to its wide adaptability,simple operation and easy production of medium/high volume fraction SiCp/Al composites.In this review,high-pressure seepage process of SiCp/Al composites with medium/high volume fraction is described in detail,including the preparation of preforms and the high-pressure seepage process.The effects of different factors such as particle size and additives during the preparation process of preforms,as well as process parameters such as pressure and temperature during the high-pressure infiltration process,on the properties of the composites are analyzed.The improvement strategy of SiCp/Al interface wettability and its effect on the properties of the composites,as well as the effect of heat treatment on the microstructure and properties of the composites are briefly described.Finally,the application of medium/high volume fraction SiCp/Al composites is introduced,and the development prospects of high-pressure seepage method for preparing medium/high volume fraction SiCp/Al composites are prospected.
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