• 文献标题:   Graphene-reinforced aluminum matrix composites prepared by spark plasma sintering
  • 文献类型:   Article
  • 作  者:   TIAN WM, LI SM, WANG B, CHEN X, LIU JH, YU M
  • 作者关键词:   metal matrix, composite, spark plasma sintering, aluminum, graphene, mechanical propertie
  • 出版物名称:   INTERNATIONAL JOURNAL OF MINERALS METALLURGY MATERIALS
  • ISSN:   1674-4799 EI 1869-103X
  • 通讯作者地址:   Beihang Univ
  • 被引频次:   35
  • DOI:   10.1007/s12613-016-1286-0
  • 出版年:   2016

▎ 摘  要

Graphene-reinforced 7055 aluminum alloy composites with different contents of graphene were prepared by spark plasma sintering (SPS). The structure and mechanical properties of the composites were investigated. Testing results show that the hardness, compressive strength, and yield strength of the composites are improved with the addition of 1wt% graphene. A clean, strong interface is formed between the metal matrix and graphene via metallurgical bonding on atomic scale. Harmful aluminum carbide (Al4C3) is not formed during SPS processing. Further addition of graphene (above 1wt%) results in the deterioration in mechanical properties of the composites. The agglomeration of graphene plates is exacerbated with increasing graphene content, which is the main reason for this deterioration.