摘要
以纳米Al2O3为增强相,用粉末冶金法制备了铜基复合材料,研究了Al2O3的比例、载荷等对复合材料摩擦因数和磨损量的影响,并和纯铜的性能作了比较。结果表明,Al2O3的质量分数不宜超过4%,以2%为最佳;纯铜的摩擦因数随着载荷的增加而轻微上升,但Cu/Al2O3复合材料的摩擦因数随着载荷的增加变化幅度较大,呈先上升后下降的趋势,且在极小和较大的载荷下,复合材料的摩擦因数均比纯铜低,但复合材料的磨损量始终比纯铜的低,相对耐磨性最高可达1.55,呈现出良好的耐磨性。
The nano-Al2O3 reinforced copper matrix composite was prepared by powder metallurgy technique.The influences of the load and proportion of Al2O3 on the friction coefficient and wear volume loss were investigated.The results show that the optimum Al2O3 content is 2%.With the increase of load,the coefficient of the copper increases slightly,while it increases firstly then decreases as to composite,and the coefficient of the composite is lower than that of copper whether under lower load or bigger load.The wea...
出处
《润滑与密封》
CAS
CSCD
北大核心
2008年第4期78-80,55,共4页
Lubrication Engineering
基金
江苏省高校自然科学基金资助项目(04KJB430013)
江苏省材料摩擦学重点实验室开放基金资助项目(kjsmcx04002)
关键词
摩擦因数
耐磨性
弥散强化
铜基复合材料
friction coefficient
wear resistance
dispersion reinforced
copper matrix composite
