硼纤维-镍复合电铸层界面结合强度的研究  

Research on the bond strength of boron fiber-nickel interface in the electroformed composites

作　　者：钱王欢[1] 曲宁松[1] 朱增伟[1] 朱荻[1] 

机构地区：[1]南京航空航天大学机电学院,江苏南京210016

出　　处：《华中科技大学学报（自然科学版）》2014年第4期26-29,共4页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(50975143);江苏省普通高校研究生科研创新计划资助项目(CXZZ12-0143);新世纪优秀人才支持计划资助项目(NCET-10-0074)

摘　　要：研究了复合电铸层纤维-基体的界面结合强度及其对抗拉强度的影响.使用单纤维拔出法测定了不同条件下的硼纤维-镍复合电铸层的纤维-基体界面结合强度,并设计了一种简单可行的试样制备方法.试验结果表明,电流密度和热处理对硼纤维-镍复合电铸层的界面结合强度具有较大的影响;结合强度的提高能够显著提升复合电铸层的抗拉强度,并且随着硼纤维体积分数的增加,提升效果越来越明显.当硼纤维-镍复合电铸层的界面结合强度由12.49MPa上升至30.12MPa时,硼纤维体积分数为30%的复合电铸层抗拉强度由990MPa上升到1 280MPa.The bond strength of boron fiber-nickel interface and its influence on the tensile strength of the composites were studied. The method of single filament pull-out was employed to test the bond strength of boron fiber-nickel interface at different conditions. It is found that current density and heat treatment has a significant influence on the bond strength, and the tensile strength of boron fiber rein- forced nickel composites is substantially improved with the increase of the bond strength, especially at high fiber volume fraction. The tensile strength of the electroformed composites with 30 % boron fiber increased from 990 MPa to 1 280 MPa when the bond strength improved from 12.49 MPa to 30. 12 MPa.

关 键 词：结合强度 纤维增强 抗拉强度 复合电铸 界面 镍 

分 类 号：TQ153.44[化学工程—电化学工业]