Abstract
Graphite flake/Cu composite has attracted tremendous attention as a promising heat sinks materi-als owing to its easy machinability and superior thermal properties.However,its preparation process still faces several technological limitations including complex,time-consuming and costly synthetic approaches.In this work,a facile and scalable intermittently electroplated method is applied to pre-pare Cu-coated graphite flake composite powders,which are subsequently sintered into dense composite bulks.The results show that the graphite flake is successfully coated with a uniform and compact Cu shell,which effectively inhibits the segregation accumulation of graphite flakes and contributes to homoge-neous distribution of graphite in the sintered graphite flake/Cu composites.The as-sintered composites exhibit an excellent thermal conductivity of 710W·m-1·K-1 and an outstanding bending strength of 93 MPa.Such performance,together with the simple,efficient powder-preparation process,suggests that the present strategy may open up opportunities for the development of thermal management materials.
NETL
NSTL
维普
万方数据