It is proposed that liquid infiltration method is the main preparation process for the whisker reinforced aluminum matrix composite and the wettability between matrix and reinforcement is the key of preparing composites, it is also an important factor to reflect the performance of the interface. During the process of preparation of composites, the wettability characterization and experimental methods, the several major ways of how to improve the wettability between matrix and reinforcement is introduced and their advantages and disadvantages are analyzed. Finally, it is concluded that coating with right process for the composites can improve the wettability effectively, and improve the mechanical properties of aluminum matrix composites.
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