Al3Ti和Al2O3增强铝基复合材料的XD合成

中国有色金属学报, 2001, 11(z1): 147-171.

Al3Ti和Al2O3增强铝基复合材料的XD合成

朱和国 ^1, , 吴申庆 ^2, , 王恒志 ^3, , 吴锵 ^4,

1.东南大学材料系,

2.东南大学材料系,

3.南京理工大学材料系,

4.南京理工大学材料系,

关键词：原位反应 , 热力学 , 燃烧波 , 铝基复合材料

Al2O3 and Al3Ti reinforced composites prepared by exothemic dispersion synthesis technology

通过XD(Exothermic Dispersion)法原位反应生成Al2O3与Al3Ti复合增强的铝基复合材料,结果表明Al/TiO2经充分混合、挤压成坯后,在真空炉中以一定的升温速率加热至1 073 K左右时发生剧烈的化学反应.由SEM,XRD及能谱分析可知:生成物Al2O3呈等轴颗粒状,Al3Ti呈棒状.主要分析了反应过程的热力学并简要说明了影响XD合成的主要因素.

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