(1.北京航空材料研究院先進(jìn)復(fù)合材料國防科技重點(diǎn)實(shí)驗(yàn)室，北京 100095;
2.哈爾濱工業(yè)大學(xué)材料科學(xué)工程學(xué)院，哈爾濱 150001)
摘 要: 系統(tǒng)地研究了一種控制SiCP/Al復(fù)合材料中輕微界面反應(yīng)的新工藝，并通過界面結(jié)構(gòu)觀察和彎曲性能測試，成功地評價(jià)了該工藝的效果。結(jié)果表明：酸洗工藝可以通過改變碳化硅顆粒表面的化學(xué)特性來實(shí)現(xiàn)SiC-Al界面狀態(tài)的優(yōu)化及控制,進(jìn)而達(dá)到調(diào)整該種復(fù)合材料的力學(xué)性能、以適應(yīng)不同應(yīng)用工況條件的目的。
關(guān)鍵字: 碳化硅顆粒 鋁基復(fù)合材料 酸洗 界面優(yōu)化及控制
（1.National Key Laboratory of Advanced Composites, Beijing Institute of Aeronautical Materials, Beijing 100095
2.School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001）
Abstract:A systematic study of a new technology__acid washing treatment plus squeeze casting for controlling the slight interfacial reaction in SiCP/6061Al composites has been carried out. The eff ect of the technology was successfully evaluated by examining interface microstructure and testing flexural properties of materials. The results show that acid washing treatment may control and optimize SiC-Al interface state by changing chemical nature of the surface of SiC particulates, which in turn modifies the mechanical properties of the materials to meet various applications.
Key words: silicon carbide particulates aluminium matrix composite acid washing interface optimization and control
