基体碳对C/CF/Cu复合材料的影响  

Effects of Matrix Carbon on C/CF/Cu Composites

作　　者：李卫[1] 齐笑冰[2] 朴东学[2] 

机构地区：[1]暨南大学 [2]沈阳铸造研究所

出　　处：《特种铸造及有色合金》2005年第11期703-704,共2页Special Casting & Nonferrous Alloys

基　　金：广东省自然科学基金资助项目(032102)

摘　　要：采用树脂碳化和碳气相沉积相结合的方法制备了碳/碳纤维(C/CF)先驱丝,用压力浸渗凝固成形方法制备了碳/碳纤维/铜(C/CF/Cu)复合材料,借助于扫描电镜下复合材料界面和相分布观察,以及显微硬度和滑动摩擦磨损测试,探讨了基体碳(树脂碳化碳和沉积碳)对C/CF/Cu复合材料成形、显微硬度及摩擦磨损的影响。结果表明,碳化和碳气相沉积处理的C/CF先驱丝相对致密,并阻碍铜液的压力浸渗成形,但该先驱丝硬度高于碳化处理的C/CF先驱丝。碳化和碳气相沉积处理的C/CF/Cu复合材料滑动摩擦磨损耐磨性高于纯铜,而且滑动摩擦因数也高于纯铜。证明C/CF/Cu复合材料是一种具有摩阻功能的复合材料。Carbon/carbon fibres (C/CF) performbars were prepared by the resin carbonation and carbon CVD. The effects of matrix carbon (resin carbonated carbon and deposited carbon )on the solidification, micro-hardness and friction wear of the C/CF/Cu composites prepared by squeezing casting were investigated by observing and analyzing the morphology of composites interface and constituent distribution using SEM and testing material micro-hardness and slide friction wear. The results show that the C/CF perform bar has higher compactness and impede liquid copper to form in squeezing casting while the microhardness is higher than that of ones only by carbonated carbon. The C/CF/Cu composites is higher than pure Cu not only in slide friction wear resistance but also in slide friction coefficient. The C/CF/Cu composites are antifriction materials.

关 键 词：C/CF/Cu复合材料 气相沉积 碳化 碳 摩擦磨损 

分 类 号：TB333[一般工业技术—材料科学与工程]