叠层压铸法制备纳米碳纤维/铜基复合材料  

Preparation of short nano-carbon fibers reinforced copper composites by laminated direct press-casting method

作　　者：徐顺建[1] 张萌[1] 付绍云[2] 

机构地区：[1]南昌大学材料科学系,江西南昌330047 [2]中国科学院理化技术研究所,北京100080

出　　处：《材料科学与工艺》2007年第4期503-506,共4页Materials Science and Technology

基　　金：教育部高等学校骨干教师资助计划资助项目(GG-430-11902-1010);江西省自然科学基金资助项目(0050022)

摘　　要：在比较目前C/Cu复合材料主要制备工艺特点的基础上,采用叠层压铸法制备纳米碳纤维/铜基复合材料,初步探讨了温度、压力对材料相容性、显微组织和性能的影响.研究表明:在略高于铜熔点的温度及适当的压力下,可获得成型较好的纳米碳纤维/铜基复合材料,与不含纳米碳纤维的试样相比硬度值(Hv)提高约30%.实验中还观察到微量杂质硫以化合物Cu2S的形式在C/Cu复合体中聚集形成规则的富硫球状颗粒的现象.A new method was proposed to prepare short nano-earbon fiber reinforced copper composites, Which was called as laminated direct press-casting. The effects of temperature and pressure on the C/Cu composites were investigated. The results showed that good samples could be got under suitable temperature and pressure, which were 1100 ℃ and 0. 3 × 10^5 Pa. And 30% increase in hardness（Hv） was obtained compared with sample without nano-earbon fibers. A new phenomenon that trace sulphur aggregated to form particles with good round-face was observed. The particles were made up of Cu2S according to the results analyzed by X-ray Diffraction.

关 键 词：叠层压铸法 纳米碳纤维 铜基复合材料 相容性 硫聚集 

分 类 号：TB333[一般工业技术—材料科学与工程] TG113.12[金属学及工艺—物理冶金]