提出一种新型的原位反应合成工艺--熔体反应法,以TiO2、H3BO3、Na3AlF6和Al-Cu合金为原材料,采用熔体反应法制备了低成本的内生颗粒增强Al-4.5Cu/TiB2复合材料.TiB2颗粒细小,平均尺寸为0.93 μm,均匀分布于基体之中,与基体结合良好.当TiB2的含量为10 vol%时,复合材料的抗拉强度为416.7 MPa,屈服强度为316.9 MPa,延伸率为3.3%.
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