Effect of H_2 Reduction Temperature on the Properties of Reduced Graphene Oxide and Copper Matrix Composites

作     者：Lidong Wang Ye Cui Ruiyu Li Guojian Cao Bin Li Weidong Fei 

作者机构：School of Materials Science and EngineeringHarbin Institute of Technology Shanghai Institute of Space Power-Sources School of Materials Science and EngineeringHarbin University of Science and Technology School of Mechanical EngineeringQinghai University 

出 版 物：《Acta Metallurgica Sinica(English Letters)》 (金属学报（英文版）)

年 卷 期：2014年第27卷第5期

页      面：924-929页

核心收录：

学科分类：0817[工学-化学工程与技术] 0806[工学-冶金工程] 08[工学] 0807[工学-动力工程及工程热物理] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0802[工学-机械工程] 0703[理学-化学] 0811[工学-控制科学与工程] 

基　　金：financially supported by the National Basic Research Program of China (No.2011CB612200) Program of Qinghai Science and Technology Department (No.2012-Z-701) Harbin Key Technologies R&D Program (No.2012DB2CP029) 

主　　题：Nanostructure Copper Composites Hydrogen Mechanical properties 

摘      要：Reduced graphene oxide （RGO） and copper composites （RGO/Cu） were successfully fabricated based on a molecular-level mixing method （MLM）. The composite powders were reduced in H2 at 350, 450, and 550℃ and then consolidated by spark plasma sintering （SPS） in order to evaluate the effect of H2 reduction temperature on the properties of the composites. The results indicate that the strengths of the composite decrease with the increase of H2 reduction temperature, while the electrical conductivity reaches its maximum at 450 ℃ and minimum at 550 ℃. Hot rolling could benefit the electrical conductivity. The yield strength of the RGO/Cu composite reduced to 337 MPa at 350℃. The electrical conductivity of the RGO/Cu composite reduced at 450℃ after hot rolling reaches 60.26% IACS. The properties of the RGO/Cu composites can be designed by adjusting the reduction degree of RGO and by hot rolling.