• 专利标题:   Rapidly preparing titanium aluminum carbon ceramics at room temperature comprises dissolving graphene oxide, adding L-ascorbic acid, reducing, drying and dehydrating, mixing e.g. aluminum powder, pressing and perform flash sintering.
  • 专利号:   CN110357633-A
  • 发明人:   HAO W, NI N, XIAO W, ZHAO X, JIANG J, FAN X, GUO F
  • 专利权人:   UNIV SHANGHAI JIAOTONG
  • 国际专利分类:   C04B035/56, C04B035/626, C04B035/65
  • 专利详细信息:   CN110357633-A 22 Oct 2019 C04B-035/56 201984 Pages: 9 Chinese
  • 申请详细信息:   CN110357633-A CN10625528 11 Jul 2019
  • 优先权号:   CN10625528

▎ 摘  要

NOVELTY - Rapidly preparing titanium aluminum carbon ceramics at room temperature comprises dissolving graphene oxide in deionized water, adding L-ascorbic acid, controlling the temperature to 80-120 degrees C after stirring, sufficiently reducing the reaction to form a graphene hydrogel having a uniform structure, drying and dehydrating the graphene hydrogel to obtain a graphene aerogel having a large porosity and a large specific surface area, uniformly mixing graphene aerogel, titanium powder and aluminum powder, pressing the obtained mixed powder into a blank, using a platinum plate as an electrode and a graphite column as a pressure contact to perform a flash sintering process to obtain a dense and uniform titanium aluminum carbon ceramic. USE - The method is useful for preparing titanium aluminum carbon ceramics at room temperature. ADVANTAGE - The method: adopts graphene assisted flash-sintering technology; is simple and has high efficiency. The ceramic has high purity and uniform grain size.