CRUCIBLE
    2.
    发明申请
    CRUCIBLE 审中-公开

    公开(公告)号:US20190024260A1

    公开(公告)日:2019-01-24

    申请号:US16073184

    申请日:2017-01-26

    Applicant: PLANSEE SE

    Abstract: A crucible includes a wall made of a base material of tungsten or molybdenum or of a material based on tungsten or molybdenum. A barrier layer is disposed at least in sections on an outer side of the wall and/or in the wall. The barrier layer is made of a metallic material having a greater affinity for carbon and/or oxygen than the base material. A method for using a crucible for producing single-crystal sapphire or fused quartz and a method for producing a crucible for high-temperature applications are also provided.

    SINTERED MOLYBDENUM PART
    7.
    发明申请

    公开(公告)号:US20200306832A1

    公开(公告)日:2020-10-01

    申请号:US16649489

    申请日:2018-09-07

    Applicant: PLANSEE SE

    Abstract: A powder-metallurgical sintered molybdenum part which is present as a solid body has the following composition: a molybdenum content of ≥99.93% by weight, a boron content “B” of ≥3 ppmw and a carbon content “C” of ≥3 ppmw, with a total content “BaC” of carbon and boron being in a range of 15 ppmw≤“BaC”≤50 ppmw, an oxygen content “O” in a range of 3 ppmw≤“O”≤20 ppmw, a maximum tungsten content of ≤330 ppmw and a maximum proportion of other impurities of ≤300 ppmw. A powder-metallurgical process for producing such a sintered molybdenum part is also provided.

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