摘要
以碳纤维针刺毡为整体骨架,采用CVI工艺制备出不同密度的C/C复合材料,然后用挤压铸造成型方法制备了C/C-Cu复合材料。并对不同组分的C/C-Cu以及C/C复合材料的弯曲性能进行了研究,结果表明:密度为4.59 g/cm3的C/C-Cu复合材料的xy向弯曲强度高于密度为1.85 g/cm3的C/C复合材料,并且具有一定的塑性,铜基体发挥了增韧增强的作用;密度为2.04 g/cm3的C/C-Cu复合材料的xy向弯曲强度低于密度为1.85 g/cm3的C/C复合材料,且没有塑性出现,铜基体分散未发挥增强作用。
By taking needled-carbon fiber felts as framework,C/C composites with different density were fabrica-ted by chemical vapor infiltration method（CVI）,and then C/C-Cu composites were made by squeeze casting tech-nique.Flexural properties of C/C-Cu and C/C containing different components content were tested and investigated.The experimental results indicate that flexural strength of C/C-Cu composites with the density of 4.59 g/cm3 is high-er than that of C/C composites with the density of 1.85 g/cm3 in xy-direction.Those C/C-Cu composites in which copper matrix plays a role of toughening and strengthening have certain plasticity;flexural strength of C/C-Cu com-posites with the density of 2.04 g/cm3 is lower than that of C/C composites with the density of 1.85 g/cm3 in xy-di-rection.Those C/C-Cu composites with dispersive copper matrix have no plasticity.
出处
《宇航材料工艺》
CAS
CSCD
北大核心
2010年第4期71-75,共5页
Aerospace Materials & Technology
基金
上海市重点学科建设项目(s30107)
上海市科学技术委员会资助(075205104)
上海市教育委员会资助(shu08012)
作者简介
孙乐，1985年出生，硕士研究生，主要从事碳／碳复合材料等相关的研究工作。E-mail：sunmythle@shu．edu．cn
