中文摘要：

以纳米Al2O3为增强相,分别采用内氧化法、冷压烧结法、SPS法制备了Al2O3/Cu复合材料,测试了3种不同工艺方法制备的复合材料的性能,并通过扫描电镜观察了其微观组织。结果表明,内氧化法制备的复合材料中Al2O3颗粒在铜基体上分布较为均匀,硬度HBS最高可达115,综合性能最好;冷压烧结法制备的复合材料综合性能较差;SPS法制备的复合材料致密度和电导率较高,分别达到99.18%和55.68MS/m,但硬度较低。

英文摘要：

Al2O3/Cu composites were prepared by internal oxidation, by cold pressed sintering and by SPS, respectively. The properties of the composites prepared by the three methods were tested, and the microstructure was observed by scanning electron microscope （SEM）. The experimental results show that the Ale03 particles of the composite prepared by internal oxidation are more evenly distributed in the copper matrix, and the hardness （HBS） can reach up to 115, exhibiting the desirable comprehensive properties. The comprehensive properties of the composites prepared by cold sintering method are inferior to those of internal oxidation composite. The relative density and the electric conductivity of the composite prepared by SPS reach 99.18% and 55.68 MS/m, however, the hardness is lower than the other two.