摘要
利用机械合金化法（MA）、磁力搅拌法（MS）、放电等离子烧结工艺（SPS）制备材料样品,研究了Al2O3含量对碳纳米管（CNTs）增强Cu基复合材料性能的影响。结果表明,加入Al2O3与碳纳米管增强相后的Cu基复合材料与纯Cu相比,磨损率降低了70.9%-85.7%,维氏硬度提高了11.6%-24.5%。当添加1.0%CNTs和1.6%Al2O3（质量分数）时所制备的复合材料的综合性能最优：相对密度为97.5%,维氏硬度为75.2 HV,热导率为272.45 W/（m·K）,电导率为4.39×10^7Ω^-1·m^-1。
By employing the combination of mechanical alloying（MA）, magnetic stirring process（MS） and spark plasma sintering（SPS） process, the influence of Al2O3 content on the properties of carbon nanotubes（CNTs） reinforced copper matrix composites was studied. Results show that wear rate of the composite is reduced by 70.9%-85.7% and Vickers hardness is increased by 11.6%-24.5% compared with pure copper. The copper matrix composite has the best comprehensive properties when adding 1.0% CNTs and 1.6%Al2O3（mass percent）, showing the relative density of 97.5%, Vickers hardness of 75.2 HV, thermal conductivity of 272.45 W/（m·K）, and electrical conductivity of 4.39×10^7Ω^-1·m^-1.
出处
《粉末冶金工业》
CAS
北大核心
2015年第2期31-34,共4页
Powder Metallurgy Industry
基金
国家自然科学基金资助项目(51471023)
