REDUCED METAL CONTENT CERAMIC COMPOSITE BODIES
    1.
    发明申请
    REDUCED METAL CONTENT CERAMIC COMPOSITE BODIES 审中-公开
    减少金属含量陶瓷复合体

    公开(公告)号:WO1992000939A2

    公开(公告)日:1992-01-23

    申请号:PCT/US1991004950

    申请日:1991-07-12

    Abstract: This invention relates generally to a novel method for removing metal from a formed self-supporting body. A self-supporting body is made by reactively infiltrating a molten parent metal into a bed or mass containing a boron donor material and a carbon donor material (e.g., boron carbide) and/or a boron donor material and a nitrogen donor material (e.g., boron nitride) and, optionally, one or more inert fillers. Once the self-supporting body is formed, it is then subjected to appropriate conditions which causes metallic constituent contained in the self-supporting body to be at least partially removed.

    Abstract translation: 本发明一般涉及从形成的自支撑体中去除金属的新方法。 通过将熔融母体金属反应性渗透到含有硼供体材料和碳供体材料(例如碳化硼)和/或硼供体材料和氮供体材料(例如, 氮化硼)和任选的一种或多种惰性填料。 一旦形成自支撑体,然后对其进行适当的条件,使包含在自支撑体中的金属成分至少部分地被去除。

    POROSITY CONTROL IN CERAMIC COMPOSITE BODIES
    2.
    发明申请
    POROSITY CONTROL IN CERAMIC COMPOSITE BODIES 审中-公开
    陶瓷复合体中的孔隙控制

    公开(公告)号:WO1992000931A2

    公开(公告)日:1992-01-23

    申请号:PCT/US1991004948

    申请日:1991-07-12

    Abstract: This invention relates generally to novel methods of preparing self-supporting bodies and to the novel products made thereby. In its more specific aspects, this invention relates to methods of producing self-supporting bodies having controlled porosity and graded properties and comprising one or more boron-containing compounds, e.g., a boride or a boride and a carbide. The method comprises, in one embodiment, reacting a powdered parent metal, in molten form, with a bed or mass comprising a boron donor material and a carbon donor material (e.g., boron carbide) and, optionally, one or more inert fillers, to form the body. In another embodiment, both of a powdered parent metal and a body or pool of molten parent metal are induced to react with a bed or mass comprising a boron donor material and a carbon donor material (e.g., boron carbide) and, optionally, one or more inert fillers to produce a grading effect in the resultant body. In addition, combustible additives (e.g., gelatin, corn starch, wax, etc.) can be mixed with the bed or mass comprising, for example, a boron carbide material to aid in porosity production and control. When the self-supporting body of the instant invention is formed while in contact with a previously formed ceramic, metal or composite body, a bond can be formed between the two bodies, thus creating a macrocomposite body.

    Abstract translation: 制备自支撑体和新产品的新工艺。 在这些更具体的方面中,本发明涉及生产具有可控孔隙率和分级性能的自支承体并且包含一种或多种含硼化合物,例如硼化物或硼化物和碳化物的方法。 在一个实施方案中,该方法包括使熔融形式的粉末状基体金属与包含硼给体材料和碳给体材料(例如碳化硼 和任选地一种或多种惰性填料以形成身体。 在另一个实施方案中,粉末状基体金属和熔融基体金属体或浴与包含硼给体材料和碳给体材料(例如, 例如,碳化硼)和任选的一种或多种惰性填料以在所得到的体内产生渐变效果。 另外,可燃添加剂(例如明胶,谷物淀粉,蜡等)可以与包含例如碳化硼的床或物质混合 协助生产和调节孔隙度。 当本发明的自支承体在与先前形成的陶瓷,金属或复合体接触时形成时,可以在两个体之间形成结合,从而形成大复合体。

    REMOVING METAL FROM COMPOSITE BODIES, AND RESULTING PRODUCTS
    3.
    发明申请
    REMOVING METAL FROM COMPOSITE BODIES, AND RESULTING PRODUCTS 审中-公开
    从复合材料和结果产品中去除金属

    公开(公告)号:WO1992012108A1

    公开(公告)日:1992-07-23

    申请号:PCT/US1992000180

    申请日:1992-01-10

    Abstract: The present invention relates to a novel process for removal of at least a portion of at least one metallic component of a metallic constituent from a multi-phase composite body. Particularly, by providing at least one of an infiltration enhancer and/or an infiltration enhancer precursor and/or an infiltrating atmosphere to be in communication with a permeable mass, which contacts at least a portion of a composite body, said metallic component of the composite body, when made molten, is caused to spontaneously infiltrate the permeable mass. Such spontaneous infiltration occurs without the requirement for the application of any pressure or vacuum.

    Abstract translation: 本发明涉及从多相复合体去除金属成分的至少一种金属成分的至少一部分的新方法。 特别地,通过提供渗透增强剂和/或渗透增强剂前体和/或渗透气氛中的至少一种与与复合体的至少一部分接触的可渗透物质连通,所述复合材料的所述金属组分 身体在熔化时被自发渗透渗透物质。 发生这种自发性渗透,而不需要施加任何压力或真空。

    REMOVING METAL FROM COMPOSITE BODIES, AND RESULTING PRODUCTS
    5.
    发明申请
    REMOVING METAL FROM COMPOSITE BODIES, AND RESULTING PRODUCTS 审中-公开
    从复合材料和结果产品中去除金属

    公开(公告)号:WO1992013689A2

    公开(公告)日:1992-08-20

    申请号:PCT/US1992000391

    申请日:1992-01-16

    IPC: B28B0

    CPC classification number: B22F3/24 C04B35/80 C22C1/1036 C22C2001/1063

    Abstract: The present invention relates to a novel process for removal of at least a portion of at least one metallic component of a metallic constituent from a fiber reinforced ceramic matrix composite body. Particularly, by providing at least one of an infiltration enhancer and/or an infiltration enhancer precursor and/or an infiltrating atmosphere to be in communication with a permeable mass, which contacts at least a portion of a composite body, said metallic component of the composite body, when made molten, is caused to spontaneously infiltrate the permeable mass. Such spontaneous infiltration occurs without the requirement for the application of any pressure or vacuum.

    Abstract translation: 本发明涉及从纤维增强陶瓷基体复合体去除金属成分的至少一种金属成分的至少一部分的新方法。 特别地,通过提供渗透增强剂和/或渗透增强剂前体和/或渗透气氛中的至少一种与与复合体的至少一部分接触的可渗透物质连通,所述复合材料的所述金属组分 身体在熔化时被自发渗透渗透物质。 发生这种自发性渗透,而不需要施加任何压力或真空。

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