FENG Yapenga ， LI Meixiab
（a. School of Mechanical and Equipment Engineering； b. School of Materials Science and Engineering， Hebei University of Enginerring， Handan 056038， China）
Abstract：Preparation and mechanical performance of graphene-metal composites were studied using Ni nanoparticles decorated graphene nanoplatelets (Ni-GPLs) as a reinforcing component in Cu matrix (Ni-GPLs-Cu) . SEM, TEM, XRD, FT-IR and XPS were used to characterize Ni-GPLs. The results show that Ni-GPLs consisting of well-dispersed Ni nanoparticles strongly attached on GPLs, are successfully synthesized by chemically reducing Ni ions on the surface of GPLs. The Ni-GPL-Cu composites with only 0.8 vol.% Ni-GPLs exhibite a significant improvement in ultimate tensile strength (UTS) , being 42 % higher than that of monolithic Cu. Ni-GPLs are novel and effective reinforcing components for greatly improving the mechanical properties of the graphene-metal composites.
Keywords：graphene nano-platelets; metal nano-particles; metal matrix composites; nickel nano-particles
文章编号：1008-5548（2018）03-0058-05
DOI：10.13732/j.issn.1008-5548.2018.03.011
收稿日期：2017-10-20， 修回日期：2017-11-15，在线出版时间：2018-05-08。
基金项目：国家自然科学基金项目，编号：51541403; 河北省自然科学基金项目，编号：E2015402146。
第一作者简介：冯亚鹏（1993—），男，硕士研究生，研究方向为复合材料的性能。E-mail:905391483@qq.com。
通信作者简介：李美霞（1978—），女，博士，副教授，硕士生导师，研究方向为复合材料的性能。 E-mail:xxllmx@163.com。
