Methods of making self-supporting ceramic materials
    21.
    发明公开
    Methods of making self-supporting ceramic materials 失效
    Verfahren zur Herstellung von selbsttragenden Keramikwerkstoffen。

    公开(公告)号:EP0169067A2

    公开(公告)日:1986-01-22

    申请号:EP85305107.6

    申请日:1985-07-17

    CPC classification number: C04B35/10 C04B35/652

    Abstract: A method to produce a self-supporting ceramic structure by oxidation of a liquid phase parent metal with a vapor phase oxidizing environment includes applying a layer having at least one dopant material to at least a portion of a parent metal of the type having an oxide skin which is normally impervious to an oxiding atmosphere. Upon temperature elevation, the parent metal becomes molten and due to the dopant material in the layer, is caused to migrate through the oxide skin and layer so as to be exposed to the oxidizing atmosphere whereupon an oxide of the parent metal is formed. Migration of the parent metal continues through the formed parent metal oxide to grow layer upon layer of parent metal oxide to thus achieve a self-supporting oxide structure.

    Abstract translation: 通过用气相氧化环境氧化液相母体金属来生产自支撑陶瓷结构的方法包括将具有至少一种掺杂剂材料的层施加到具有氧化皮的类型的母体金属的至少一部分 这通常不利于氧化气氛。 当温度升高时,母体金属变得熔化并且由于该层中的掺杂剂材料而被迁移通过氧化皮和层,以暴露于氧化气氛,从而形成母体金属的氧化物。 母金属的迁移继续通过形成的母体金属氧化物在母体金属氧化物层上生长层,从而实现自支撑氧化物结构。

    Methods for forming macrocomposite bodies and macrocomposite bodies produced thereby
    27.
    发明公开
    Methods for forming macrocomposite bodies and macrocomposite bodies produced thereby 失效
    Verfahren zum Formen von Makro-Verbundwerkstoff-Körpernund Makroprodukte daraus。

    公开(公告)号:EP0369931A1

    公开(公告)日:1990-05-23

    申请号:EP89630179.3

    申请日:1989-09-28

    Abstract: The present invention relates to the formation of a macrocomposite body by spontaneously infiltrating a per­meable mass of filler material or a preform (4) with molten matrix metal (2) and bonding the spontaneously infiltrated material to at least one second material such as a ceramic or ceramic containing body and/or a metal or metal contai­ning body. Particularly, an infiltration enhancer and/or infiltration enhancer precursor and/or infiltrating atmos­phere are in communication with a filler material or a pre­form (4), at least at some point during the process, which permits molten matrix metal (2) to spontaneously infiltrate the filler material or preform (4). Moreover, prior to in­filtration, the filler material or preform (4) is placed into contact with at least a portion of a second material such that after infiltration of the filler material or pre­form (4), the infiltrated material is bonded to the second material, thereby forming a macrocomposite body.

    Abstract translation: 本发明涉及通过自发渗透填充材料的可渗透物质或具有熔融基质金属(2)的预成型体(4)并将自发渗透的材料结合到至少一种第二材料如陶瓷或 含有陶瓷的体和/或金属或金属的体。 特别地,渗透增强剂和/或渗透增强剂前体和/或渗透气氛至少在该过程的某一点与填料或预型体(4)连通,这允许熔融基体金属(2)自发渗透 填料或预型件(4)。 此外,在渗透之前,将填料或预成型件(4)放置成与第二材料的至少一部分接触,使得在填充材料或预制件(4)渗透之后,渗透的材料结合到第二材料 ,从而形成大复合体。

    A method of thermo-forming a novel metal matrix composite body
    28.
    发明公开
    A method of thermo-forming a novel metal matrix composite body 失效
    Verfahren zum Thermoformen von Verbundwerkstoff-Körpern。

    公开(公告)号:EP0368789A1

    公开(公告)日:1990-05-16

    申请号:EP89630175.1

    申请日:1989-09-28

    Abstract: The present invention relates to the formation of a metal matrix composite body by a spontaneous infiltration technique and thereafter thermo-forming the produced metal matrix composite body. Particularly, an infiltration enhan­cer and/or an infiltration enhancer precursor and/or an in­filtrating atmosphere are in communication with a filler material (2) or a preform, at least at some point during the process, which permits molten matrix metal to sponta­neously infiltrate the filler material (2) or preform. After formation of the metal matrix composite body, the body is subjected to a thermo-forming technique such as rolling, extruding, die casting, pressing, etc.

    Abstract translation: 本发明涉及通过自发渗透技术形成金属基质复合体,然后对所制备的金属基复合体进行热成型。 特别地,渗透增强剂和/或渗透增强剂前体和/或渗透气氛至少在该过程中的某一点处与填料(2)或预型体连通,这允许熔融基质金属自发渗入 填料(2)或预制件。 在形成金属基复合体后,对其进行轧制,挤压,压铸,压制等热成型技术。

    Method of making shaped ceramic composites
    30.
    发明公开
    Method of making shaped ceramic composites 失效
    制作形状陶瓷复合材料的方法

    公开(公告)号:EP0272997A3

    公开(公告)日:1989-10-18

    申请号:EP87630262.1

    申请日:1987-12-14

    CPC classification number: C04B35/652

    Abstract: The present invention provides a method for pro­ducing a self-supporting ceramic composite by the oxida­tion of a parent metal (10) to form a polycrystalline cera­mic material consisting essentially of the oxidation re­action product of the parent metal (10) with an oxidant, including a vapor-phase oxidant, and, optionally, one or more metallic constituents. A permeable filler material, such as a preform (14), with at least one surface bearing a permeble stratum (18), is contacted with a body of molten parent metal (10) heated to a temperature above its melting point but below the melting point of the oxidation reaction product. At least a portion of the oxidation re­action product is maintained in contact with and between the molten metal (10) and oxidant to transport the molten metal through the oxidation reaction product toward the permeable stratum (18) and into contact with the oxidant so that the oxidation reaction product continues to form at the interface between the oxidant and previously formed oxidation reaction product that has infiltrated the filler material. The reaction is continued to infiltrate at least a portion of the stratum (18) with the oxidation reaction product and to produce an intermediate ceramic body having an adjacent ceramic composite overlaid with a ceramic stra­tum. The ceramic stratum is removed from the underlying ceramic composite to produce a self-supporting ceramic com­posite having the surface established by the permeable stratum (18).

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