粉末冶金技术2026，Vol.44Issue(1)：1-13,13.DOI:10.19591/j.cnki.cn11-1974/tf.2024120002
化学气相沉积法引入非原位WC界面相实现CNTs/Cu复合材料力学与导电性能的协同提高
Simultaneous improvement on mechanical and electrical properties of CNTs/Cu composites via introducing ex-situ interfacial WC by chemical vapor deposition
俸俊芹 1陶静梅 1陈小丰 1李才巨 1易健宏1
作者信息
- 1. 昆明理工大学材料科学与工程学院,昆明 650093
- 折叠
摘要
Abstract
The nano-scale WC interface phases were pr-introduced on the surface of carbon nanotubes(WC@CNTs)by chemical vapor deposition using CH4 served as the C source and ammonium metatungstate served as the W source.Subsequently,the WC@CNTs reinforced copper matrix composites(WC@CNTs/Cu)were prepared by spark plasma sintering(SPS).The effects of WC on the mechanical and electrical properties of the composites were studied in detail.The results show that,the"CNTs-WC-Cu"interface formed after the introduction of WC can not only effectively transfer the stress,but also effectively improve the interfacial electrical conductivity by reducing the inelastic scattering of the interface,making the WC@CNTs/Cu composites exhibit the excellent mechanical and electrical conductivity.When the addition amount of CNTs is 1％by volume,the ultimate tensile strength of the WC@CNTs/Cu composites reaches 302 MPa,which is 34.2％higher than that of the CNTs/Cu composites and 41.1％higher than that of pure Cu,while still maintaining the excellent fracture elongation of 27％.Additionally,the WC@CNTs/Cu composites exhibit the electrical conductivity of 94.4％IACS,which is comparable to that of pure Cu prepared by the same method.关键词
铜基复合材料/碳纳米管/微观结构/力学性能/导电性能Key words
copper matrix composites/carbon nanotubes/microstructure/mechanical properties/electrical conductivity分类
通用工业技术引用本文复制引用
俸俊芹,陶静梅,陈小丰,李才巨,易健宏..化学气相沉积法引入非原位WC界面相实现CNTs/Cu复合材料力学与导电性能的协同提高[J].粉末冶金技术,2026,44(1):1-13,13.
