• 专利标题:   Preparation of graphene-reinforced aluminum matrix composite involves loading composite powder of aluminum powder and aluminized graphene, into graphite mold, pre-compressing, wrapping carbon felt around mold, and spark plasma sintering.
  • 专利号:   CN108817388-A
  • 发明人:   ZHANG J, HE C, ZHAO J, HAN C, YANG X
  • 专利权人:   UNIV HEFEI TECHNOLOGY
  • 国际专利分类:   B22F003/105, C22C021/00, C22C001/05
  • 专利详细信息:   CN108817388-A 16 Nov 2018 B22F-003/105 201902 Pages: 9 Chinese
  • 申请详细信息:   CN108817388-A CN10776540 12 Jul 2018
  • 优先权号:   CN10776540

▎ 摘  要

NOVELTY - Preparation of graphene-reinforced aluminum matrix composite involves mixing aluminum powder and aluminized graphene using ball mill mixing method to obtain uniform composite powder, loading the composite powder into a graphite mold coated with graphite paper, pre-compressing the graphite mold using a manual hydraulic press, at 8-12 MPa, wrapping 4-6 mm thick carbon felt around graphite mold, placing in furnace of spark plasma sintering system, vacuuming to below 5 Pa, applying direct current pulse current to consolidate the composite powder, forming at an axial pressure of 10-50 MPa, 20-50 degrees C/minute, and sintering temperature of 550-600 degrees C, heat preserving for 5-10 minutes, and cooling the sintered sample to room temperature with the furnace to obtain graphene-reinforced aluminum-based composite cylindrical ingot. USE - Preparation of graphene-reinforced aluminum matrix composite. ADVANTAGE - The method produces graphene-reinforced aluminum matrix composite with excellent mechanical properties, and electrical conductivity.