ALUMINA PARTICLE
    1.
    发明申请

    公开(公告)号:US20210053836A1

    公开(公告)日:2021-02-25

    申请号:US17042899

    申请日:2019-04-02

    Abstract: The present invention provides alumina particles having a fixed card-house structure formed of three or more flat plate-like alumina particles and having an average particle diameter of 3 to 1000 μm. Also, there is provided alumina particles having an average particle diameter of 3 to 1000 μm and having a fixed card-house structure in which the three or more flat plate-like alumina are aggregated to be crossed each other at two or more plurality of positions, and the plane directions of the flat plates crossed each other are in a state of disordered arrangement.

    FLAKY ALUMINA PARTICLES AND METHOD FOR PRODUCING FLAKY ALUMINA PARTICLES

    公开(公告)号:US20210291272A1

    公开(公告)日:2021-09-23

    申请号:US17259932

    申请日:2018-07-26

    Abstract: Flaky alumina particles including mullite in a surface layer of the flaky alumina particles. A method for producing flaky alumina particles including forming a mixture by mixing together an aluminum compound that contains elemental aluminum, a molybdenum compound that contains elemental molybdenum, and silicon or a silicon compound that contains elemental silicon, the aluminum compound being in an amount greater than or equal to 50 mass %, calculated as Al2O3, the molybdenum compound being in an amount less than or equal to 40 mass %, calculated as MoO3, the silicon or the silicon compound being in an amount of 0.5 mass % or greater and less than 10 mass %, calculated as SiO2, relative to a total mass of the flaky alumina particles taken as 100 mass %; and firing the mixture.

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