SILICA VESSEL AND PROCESS FOR PRODUCING SAME
    2.
    发明公开
    SILICA VESSEL AND PROCESS FOR PRODUCING SAME 审中-公开
    石英容器及其制造方法

    公开(公告)号:EP2431338A4

    公开(公告)日:2016-04-20

    申请号:EP10769441

    申请日:2010-03-23

    摘要: The present invention provides a method for producing a silica container, wherein the method comprises: a step of forming a powder mixture by adding an Al compound or a crystal nucleating agent into a first powdered raw material (silica particles), a step of preliminarily molding to an intended shape by feeding the powder mixture to an inner wall of an outer frame while rotating the outer frame having aspiration holes, a step of forming a silica substrate, wherein the preliminarily molded article is degassed by aspiration from a peripheral side and at the same time heated from inside the preliminarily molded article at high temperature thereby making a peripheral part of the preliminarily molded article to a sintered body while an inner part to a fused glass body, and a step of forming a transparent silica glass layer on an inner surface of the silica substrate, wherein a second powdered raw material having a higher silica purity than the first powdered raw material is spread from inside the silica substrate and at the same time heated from the inside at high temperature. Accordingly, a method for producing a silica container with a high dimensional precision, a high durability, and suppressed gas release, and with a reduced energy consumption and a low production cost, by using a cheap and relatively low grade powdered silica as a main raw material, is provided.

    QUARTZ CRUCIBLE AND METHOD OF MANUFACTURING THE SAME
    5.
    发明公开
    QUARTZ CRUCIBLE AND METHOD OF MANUFACTURING THE SAME 审中-公开
    QUARZTIEGEL UND HERSTELLUNGSVERFAHRENDAFÜR

    公开(公告)号:EP2486173A2

    公开(公告)日:2012-08-15

    申请号:EP10822197.9

    申请日:2010-09-28

    申请人: LG Siltron Inc.

    IPC分类号: C30B15/10 C03B19/09

    摘要: Provided are a quartz crucible and a method of manufacturing the quartz crucible. The quartz crucible is used in a single crystal growth apparatus. The quartz crucible comprises an inner layer including silica, and an outer layer including silica disposed outside the inner layer to surround the inner layer, wherein a nitrogen is added in the silica of the outer layer.

    摘要翻译: 提供石英坩埚和制造石英坩埚的方法。 石英坩埚用于单晶生长装置。 石英坩埚包括内层,包括二氧化硅,外层包括设置在内层外侧的二氧化硅,以包围内层,其中在外层的二氧化硅中加入氮。