An advanced method of producing Al 3Ti/Al composites, self propagating high temperature synthesis (SHS) in an Al melt, is described. The mole ratio of Al/Ti in the starting powder mixture is an important parameter for that controls the microstructure of the Al 3Ti compound produced by SHS. When Al/Ti is much smaller than 3/1(the stoichiometric ratio), large needle like Al 3Ti structures will be produced. When Al/Ti is close to or larger than this value, the more favorable homogeneously distributed blocky Al 3Ti will be obtained. But if Al/Ti ratio is larger than 3 75/1, the SHS process will stop because more heat is consumed for heating up and melting the Al powder.
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介萬奇,E. G. Kandalova,張瑞杰,V. I. Nikitin. SHS法制備Al_3Ti/Al復(fù)合材料的研究[J].稀有金屬材料與工程,2000,(3).[Jie Wanqi, E G Kandalova, Zhang Ruijie, V. I. Nikitin . Al_3Ti/Al Composites Prepared by SHS[J]. Rare Metal Materials and Engineering,2000,(3).] DOI：[doi]