• 专利标题:   Preparing superfine crystal grain alpha-phase alumina ceramic comprises using graphene oxide as template to prepare amorphous aluminum hydroxide, heating amorphous aluminum hydroxide in air to obtain sheet alpha-phase alumina and sintering.
  • 专利号:   CN112745112-A, CN112745112-B
  • 发明人:   FAN Y, YAN G, YAN P, WANG L, JIANG G
  • 专利权人:   UNIV DONGHUA
  • 国际专利分类:   C04B035/111, C04B035/626, C04B035/64
  • 专利详细信息:   CN112745112-A 04 May 2021 C04B-035/111 202144 Pages: 13 Chinese
  • 申请详细信息:   CN112745112-A CN11561148 25 Dec 2020
  • 优先权号:   CN11561148

▎ 摘  要

NOVELTY - Preparing superfine crystal grain alpha -phase alumina ceramic is prepared by using graphene oxide as template to prepare amorphous aluminum hydroxide, heating amorphous aluminum hydroxide at 1100 degrees C in air to obtain sheet alpha -phase alumina, and sintering to obtain alpha -phase alumina ceramic. USE - The method is useful for preparing superfine-grained alpha-phase alumina ceramic with high strength and high hardness. ADVANTAGE - The crystal alpha-phase alumina ceramic with high strength and high hardness. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for superfine crystal grain alpha-phase alumina ceramic prepared by above mentioned method.