【摘 要】
：
Ti,Al,graphite and diamond powders were used as raw materials to prepare Ti2AlC matrixbonded diamond composite using self-propagating high-temperature synthesis (SHS) method.The effect of diamond size and content on the fabrication of Ti2AlC-bonded diamon
【机 构】
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School of Materials and Chemical Engineering, Zhongyuan University of Technology, Zhengzhou 451191,
【出 处】
：
武汉理工大学学报（材料科学版）（英文版）
论文部分内容阅读
Ti,Al,graphite and diamond powders were used as raw materials to prepare Ti2AlC matrixbonded diamond composite using self-propagating high-temperature synthesis (SHS) method.The effect of diamond size and content on the fabrication of Ti2AlC-bonded diamond material was investigated.Results showed that Ti2AlC matrix-bonded diamond composites could be obtained by SHS.The phase composition and microstructure of the Ti2AlC-bonded diamond material were influenced by the diamond content and size.When the diamond (93 μm) additive amounts were 10％ and 20％,the product phases included Ti2AlC,TiC and Al3Ti.However,excess Ti and Al persisted in the sample that contained 30％ diamond.Diamond bonded well with the matrix in the sample that contained 10％ diamond.Moreover,addition of coarse diamond particles with sizes of 93 and 125 μm produced a mainly Ti2AlC matrix.However,diamond adequately reacted with Ti to form TiC when finer diamond particles (5 and 10 μm) were used.
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