【摘要】 采用瓷刚铝合金TiB₂/Al制备导电铝材，在大幅提升铝材弹性模量的基础上获得了优异的强塑性和电导率组合。瓷刚铝合金通过氟盐反应法向铝熔体中原位生成TiB₂颗粒以增强铝基体。相比于纯合金而言，瓷刚铝合金晶粒尺寸大幅降低。1070铝合金中添加2%的TiB₂颗粒，抗拉强度达到161.7 MPa，屈服强度为150.6 MPa，伸长率为7.76%，电导率为35.786 MS/m，弹性模量为73.1 GPa。6201铝合金中添加0.5%的TiB₂颗粒后抗拉强度提高了55 MPa，电导率提升了1.606 6 MS/m，伸长率未明显降低。更多还原

【Abstract】 The ceramic-rigid TiB₂/Al was applied to fabricate aluminum conductor to obtain superior combination of strength, ductility and electrical conductivity on the basis of greatly improving the elastic modulus. TiB₂ particles were in-situ generated in the molten aluminum through halide salt reactions to reinforce aluminum matrix. Compared with pure alloys, the grain size of ceramic-rigid TiB₂/Al is significantly refined. With 2% TiB₂ addition, the tensile strength, yield strength, elongation, conductivity and elastic modulus of 1070 aluminum alloy reach 161.7MPa, 150.6 MPa, 7.76%, 35.786 MS/m, and 73.1 GPa, respectively. After 0.5% TiB₂ addition, the tensile strength and conductivity of 6201 aluminum alloy are increased by 55 MPa and 1.606 6 MS/m, while the elongation is hardly reduced.更多还原