Open AccessEffect of Graphene Addition on Microstructure and Properties of Graphene/Copper Composite
Author(s) -
Ye Gu,
Linli Hu
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/651/3/032002
Subject(s) - graphene , materials science , microstructure , copper , composite number , electrical resistivity and conductivity , relative density , ultimate tensile strength , composite material , sintering , conductivity , graphene oxide paper , metallurgy , nanotechnology , chemistry , engineering , electrical engineering
Graphene/copper composites were prepared by wet milling and hot-press sintering process. The effect of graphene addition (0.2, 0.6, 1.0, 1.5wt.%) on the microstructure and properties of graphene/copper composites were investigated. The results reveal that graphene (addition of 0.2 and 0.6wt.%) was uniformly distributed in Cu matrix and plays a role in refining grain and enhance the properties. For the 0.6wt.% graphene/copper composite, the relative density, hardness and tensile strength reached largest (respectively 99.4%, 78.5HV and 290.47MPa), its electrical conductivity decreased slightly to 97.5% IACS. While addition reached/beyond 1.0wt.%, graphene agglomerated, the relative density, electrical conductivity and hardness decreased.