Kim Kyungju, Kim Dasom, Park Kwangjae, Cho Myunghoon, Cho Seungchan, Kwon Hansang
The Industrial Science Technology Research Center, Pukyong National University, 365, Sinseon-ro, Nam-Gu, Busan 48547, Korea.
Department of R&D, Next Generation Materials Co., Ltd., 365, Sinseon-ro, Nam-Gu, Busan 48547, Korea.
Materials (Basel). 2019 May 10;12(9):1546. doi: 10.3390/ma12091546.
Aluminium-copper composite materials were successfully fabricated using spark plasma sintering with Al and Cu powders as the raw materials. Al-Cu composite powders were fabricated through a ball milling process, and the effect of the Cu content was investigated. Composite materials composed of Al-20Cu, Al-50Cu, and Al-80Cu (vol.%) were sintered by a spark plasma sintering process, which was carried out at 520 °C and 50 MPa for 5 min. The phase analysis of the composite materials by X-ray diffraction (XRD) and energy-dispersive spectroscopy (EDS) indicated that intermetallic compounds (IC) such as CuAl and CuAl were formed through reactions between Cu and Al during the spark plasma sintering process. The mechanical properties of the composites were analysed using a Vickers hardness tester. The Al-50Cu composite had a hardness of approximately 151 HV, which is higher than that of the other composites. The thermal conductivity of the composite materials was measured by laser flash analysis, and the highest value was obtained for the Al-80Cu composite material. This suggests that the Cu content affects physical properties of the Al-Cu composite material as well as the amount of intermetallic compounds formed in the composite material.
以铝粉和铜粉为原料，采用放电等离子烧结法成功制备了铝铜复合材料。通过球磨工艺制备了铝铜复合粉末，并研究了铜含量的影响。由Al-20Cu、Al-50Cu和Al-80Cu（体积分数）组成的复合材料通过放电等离子烧结工艺进行烧结，烧结在520℃、50MPa条件下进行5分钟。通过X射线衍射（XRD）和能谱分析（EDS）对复合材料进行相分析，结果表明，在放电等离子烧结过程中，铜和铝之间发生反应，形成了CuAl等金属间化合物（IC）。使用维氏硬度计对复合材料的力学性能进行了分析。Al-50Cu复合材料的硬度约为151 HV，高于其他复合材料。通过激光闪光分析法测量了复合材料的热导率，Al-80Cu复合材料的热导率最高。这表明铜含量不仅影响铝铜复合材料的物理性能，还影响复合材料中形成的金属间化合物的数量。
