有色金属材料与工程2024，Vol.45Issue(2)：9-16,8.DOI:10.13258/j.cnki.nmme.20230308001
碳纳米管增强硬质合金的制备及性能研究
Preparation and properties of carbon nanotube-reinforced cemented carbide
摘要
Abstract
In order to reduce the agglomeration of reinforcing carbon nanotubes in cemented carbide,the surface of CNTs was modified by electroless nickel plating.CNTs reinforced WC-10Co cemented carbide as well as CNTs/Ni reinforced WC-10Co cemented carbide was prepared by gas pressure sintering process.The surface morphology,structure and composition of CNTs before and after Ni plating were characterized,and the effects of CNTs and CNTs/Ni on the structure and performance of cemented carbides.The results showed that the surface was covered with dense Ni nanoparticles after electroless plating,and the agglomeration of carbon nanotubes was significantly improved.With the addition of CNTs and CNTs/Ni,the grain of cemented carbide is effectively refined with less porosity.Compared to the unadded,the bending strength of the cemented carbide with the additive score of 0.1%CNTs and the cemented carbide with the additive score of 0.1%CNTs/Ni increased by 17.5%and 28.2%,and the thermal diffusivity increased by 23.5%and 40.8%,respectively.关键词
碳纳米管/化学镀/硬质合金/抗弯强度/热扩散系数Key words
carbon nanotubes/electroless plating/cemented carbide/bending strength/thermal diffusivity分类
金属材料引用本文复制引用
刘岩岩,张鹏,熊德树,张柯..碳纳米管增强硬质合金的制备及性能研究[J].有色金属材料与工程,2024,45(2):9-16,8.基金项目
国家自然科学基金资助项目(No.51971148) （No.51971148）
