• 专利标题:   Preparing a graphene tungsten-copper alloy comprises e.g. providing a first mixture comprising copper powder and optional dispersant, mixing first mixture in reaction furnace, introducing gaseous carbon source material, and reacting.
  • 专利号:   CN110756794-A
  • 发明人:   LIN Z, DAI D, JIANG N, HAN Y, ZHU Z, CHEN B, DING Y, ZHANG Q, WANG Q
  • 专利权人:   CHINESE ACAD SCI NINGBO MATERIALS TECHNO, GLOBAL ENERGY INTERCONNECTION RES INST, STATE GRID SHANXI ELECTRIC POWER CO, STATE GRID CORP CHINA
  • 国际专利分类:   B22F001/00, B22F001/02, B22F003/10, B22F003/14, C22C001/05, C22C001/10, C22C027/04, C23C016/26
  • 专利详细信息:   CN110756794-A 07 Feb 2020 B22F-001/00 202017 Pages: 10 Chinese
  • 申请详细信息:   CN110756794-A CN10846015 27 Jul 2018
  • 优先权号:   CN10846015

▎ 摘  要

NOVELTY - Preparing a graphene tungsten-copper alloy comprises (i) providing a first mixture comprising copper powder and an optional dispersant; (ii) mixing the first mixture in a reaction furnace, at a first pressure, the first temperature and the first gas, preferably introducing the gaseous carbon source material, and reacting to obtain graphene modified copper powder; and (iii) mixing the graphene modified copper powder with tungsten powder, and sintering. USE - The method is useful for preparing a graphene tungsten-copper alloy. ADVANTAGE - The method: is simple and safe to process, utilizes cheap and readily available raw materials; and is environmentally-friendly, economical and suitable for large-scale popularization; prepares the graphene tungsten-copper alloy, which high abrasion resistance and high anti-ablative performance, and ensures (i) greater than or equal to 0.2 friction coefficient of alloy, (ii) greater than or equal to 2.5x 106 mm3/(Nm) wear rate of alloy, and (iii) 12000 microseconds of greater than or equal to 0.05% mass loss of the alloy after electric spark ablation. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) graphene tungsten-copper alloy, is prepared by the method; and (2) product, comprising the graphene tungsten-copper alloy.