METHOD FOR SYNTHESIZING TITANIUM DIBORIDE POWDER

    公开(公告)号:US20240409420A1

    公开(公告)日:2024-12-12

    申请号:US18698269

    申请日:2022-10-04

    Abstract: A method for synthesizing a TiB2 powder includes the reduction of titanium oxide by carbon in the presence of a source of boron, the method includes heating a mixture of a carbon source, a boron carbide powder whose median particle diameter is between 5 and 100 microns and a powder of titanium oxide whose median particle diameter is between 5 and 80 microns, the mixture being placed in an enclosure under an inert gas sweep flow rate between 0.5 and 10 L/min/m/m3 of enclosure at a temperature of between 1500° C. and 2000° C., as well as the TiB2 powder obtained by such a method.

    SINTERED ZIRCON BEADS
    5.
    发明申请

    公开(公告)号:US20200223755A1

    公开(公告)日:2020-07-16

    申请号:US16630985

    申请日:2018-07-18

    Inventor: Emmanuel NONNET

    Abstract: A sintered bead with the following crystal phases, in percentages by mass based on crystal phases: 25%≤zircon, or “Z1”, ≤94%; 4%≤stabilized zirconia+stabilized hafnia, or “Z2”, ≤61%; monoclinic zirconia+monoclinic hafnia, or “Z3”≤50%; corundum≤57%; crystal phases other than Z1, Z2, Z3 and corundum

    BEAD MADE OF A FUSED PRODUCT
    7.
    发明申请

    公开(公告)号:US20180297036A1

    公开(公告)日:2018-10-18

    申请号:US15769165

    申请日:2016-10-21

    Abstract: A bead having a sphericity greater than or equal 0.6 and made of a fused product having the following chemical composition, in percentages by weight on the basis of the oxides and for a total of 100%: 20%≤(ZrO2+HfO2), with HfO2≤2%, 5%≤SiO2, 0%≤Al2O3≤20%, 8.5%≤MgO≤20%, 0.5%≤TiO2≤20%, and oxides other than ZrO2, HfO2, SiO2, Al2O3, MgO and TiO2, or “other oxides”: ≤5% provided that the (ZrO2+HfO2)/SiO2 weight ratio is greater than 1, and provided that Al2O3+TiO2≤26% if MgO>17%.

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