摘要
在基体中添加少量活性Ti,采用无压浸渗工艺制备碳纤维细编穿刺织物/铜复合材料(C/Cu),并利用XRD、SEM和EDS等检测手段对复合材料的微观组织和界面特性进行研究,并对复合材料的热导率进行测定。结果表明,在铜基体中加入有助于强碳化物形成的Ti,可有效提高铜及铜合金与碳的自发润湿性,实现了采用无压浸渗工艺制备C/Cu复合材料;随温度的升高复合材料热导率增加;当Ti含量在3%～5%时,复合材料热导率随Ti含量的增加而增大;当Ti含量超过5%时,复合材料热导率随Ti含量的增加而降低,说明Ti含量对复合材料热导率有显著影响。
C/Cu composite reinforced by fine weave pierced fabrics of carbon fiber was successfully synthesized by pressureless infiltration in the presence of adding Ti into coppermatrix.The microstructure and interface characteristics of the composite were analyzed by XRD,SEM and EDS.Meanwhile,the thermal conductivity of the samples were tested.The results show that the wettability of copper matrix with carbon fiber could be obviously improved due to the addition of Ti.The composite prepared by pressureless infiltration becomes available.The thermal conductivity of the composite increases with the increase of temperature when the content of Ti is from 3%to 5%,but it rapidly decreases with the content of Ti above 5%.
出处
《热加工工艺》
CSCD
北大核心
2010年第18期106-108,148,共4页
Hot Working Technology
关键词
碳纤维细编穿刺织物
CU基复合材料
无压浸渗
热导率
fine weave pierced fabrics of carbon fiber
copper matrix composite
pressureless infiltration
thermal conductivity
