Open AccessSimple and efficient preparation of uniformly dispersed Carbon nanotubes reinforced Copper matrix composite powders by in situ chemical vapor deposition without additional catalyst
Author(s) -
Pengyun Duan,
Kai Xu,
Xiaohong Chen,
Ping Liu,
Honglei Zhou,
Shaoli Fu,
Liming Bi,
Xu Guo
Publication year - 2021
Publication title -
materials research express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.383
H-Index - 35
ISSN - 2053-1591
DOI - 10.1088/2053-1591/abd2f6
Subject(s) - materials science , carbon nanotube , composite number , copper , catalysis , chemical vapor deposition , dispersion (optics) , particle (ecology) , chemical engineering , matrix (chemical analysis) , composite material , nanoparticle , nanotechnology , metallurgy , chemistry , organic chemistry , engineering , physics , oceanography , geology , optics
Carbon nanotubes (CNTs) reinforced Copper (Cu) matrix composite powders have been successfully prepared by in situ chemical vapor deposition (CVD) using Cu-0.6 wt% Al alloy powders without additional catalyst. The catalyst for CNTs growth is nano-copper particle (∼28 nm), and the interaction between Cu and Al 2 O 3 would promote the formation of nano-copper particles (∼28 nm). The high quality multi-walled CNTs obtained dispersed uniformly on and well bonded to the composite powders. And the formation mechanism was discussed, the results show that part of the growth of CNTs follows tip-growth mode and the others without catalyst particles at the top follow the base-growth mode. This providing a simple and effective method for in situ preparation of CNTs/Cu composite powder with uniform dispersion of CNTs.