• 专利标题:   Preparing graphene-reinforced aluminum-based composite material by atmosphere controlled powder metallurgy comprises ball milling graphene and aluminum base material in inert gas atmosphere, degassing, hot pressing into blank and annealing.
  • 专利号:   CN113355548-A, CN113355548-B
  • 发明人:   GUO Q, HAN Y, YANG G, ZHANG D
  • 专利权人:   UNIV SHANGHAI JIAOTONG
  • 国际专利分类:   B22F001/00, B22F003/14, B22F003/24, B22F009/04, C22C001/05, C22C021/00, B22F001/065, B22F001/14
  • 专利详细信息:   CN113355548-A 07 Sep 2021 C22C-001/05 202180 Pages: 13 Chinese
  • 申请详细信息:   CN113355548-A CN10607057 28 May 2021
  • 优先权号:   CN10607057

▎ 摘  要

NOVELTY - Preparing graphene-reinforced aluminum-based composite material by atmosphere controlled powder metallurgy comprises (i) ball milling graphene powder and aluminum base material under the inert gas atmosphere to obtain uniformly mixed composite powder; (ii) degassing the composite powder under the inert gas atmosphere, hot pressing to obtain graphene-reinforced aluminum-based composite blank; and (iii) performing annealing treatment to the graphene-reinforced aluminum-based composite blank, performing densification process, and cold-drawing wire processing to obtain the graphene-reinforced aluminum-based composite material. USE - The method is useful for graphene-reinforced aluminum-based composite material by atmosphere controlled powder metallurgy. ADVANTAGE - The method avoids aluminum base oxidation, reduces oxygen content of composite material, improves mechanical and electrical properties of composite material, exerts strengthening potential and performance of graphene, saves energy and time, and is suitable for mass production.