Dense skin ceramic structure and method of making the same
    1.
    发明公开
    Dense skin ceramic structure and method of making the same 失效
    的陶瓷体具有用于其生产压实表面和方法。

    公开(公告)号:EP0261057A2

    公开(公告)日:1988-03-23

    申请号:EP87630174.8

    申请日:1987-09-03

    CPC classification number: C04B35/652 C22C29/12

    Abstract: The disclosure concerns self-supporting ceramic structures, including ceramic composite structures embedding a filler, and methods of making them. The ceramic structures comprise a polycrystlline material made by oxidation of a body of molten parent metal with an oxidant. The poly­crystalline material has a first region substrate surmounted by a terminal region stratum which is integral with the first region. The terminal region stratum which is harder and of denser, finer crystalline structure than the first region substrate and is formed in a reaction stage subsequent to the reaction stage in which the first region of polycrystalline material is formed. Growth of the first stage is attained by by attenuating or interrupting the transport of molten parent metal to the first region under conditions which nonetheless leave or maintain therein enough oxidizable molten parent metal to form the polycrystalline material of the terminal region.

    Abstract translation: 本发明涉及自支承陶瓷结构,包括嵌入填料的陶瓷复合结构,以及制备它们的方法。 该陶瓷结构包括在氧化剂与由熔融母金属体的氧化由polycrystlline材料。 多晶材料具有由终区薄层所有这一切都与第一区域的积分超越的第一区域的基底。 该终区薄层所有这是更硬和更细的晶体结构比第一区域衬底的更致密的,并在随后于其中的多晶材料的第一区域中形成所述反应阶段的反应阶段中形成。 第一阶段的增长是由通过衰减或哪个仍然离开或维持。其中足够可氧化的熔融母金属以形成所述端子区域的多晶材料的条件下中断熔融母金属的第一区域的传输来实现。

    Dense skin ceramic structure and method of making the same
    3.
    发明公开
    Dense skin ceramic structure and method of making the same 失效
    渗透性皮肤陶瓷结构及其制造方法

    公开(公告)号:EP0261057A3

    公开(公告)日:1990-02-07

    申请号:EP87630174.8

    申请日:1987-09-03

    CPC classification number: C04B35/652 C22C29/12

    Abstract: The disclosure concerns self-supporting ceramic structures, including ceramic composite structures embedding a filler, and methods of making them. The ceramic structures comprise a polycrystlline material made by oxidation of a body of molten parent metal with an oxidant. The poly­crystalline material has a first region substrate surmounted by a terminal region stratum which is integral with the first region. The terminal region stratum which is harder and of denser, finer crystalline structure than the first region substrate and is formed in a reaction stage subsequent to the reaction stage in which the first region of polycrystalline material is formed. Growth of the first stage is attained by by attenuating or interrupting the transport of molten parent metal to the first region under conditions which nonetheless leave or maintain therein enough oxidizable molten parent metal to form the polycrystalline material of the terminal region.

    Method of making ceramic articles having channels therein and articles made thereby
    5.
    发明公开
    Method of making ceramic articles having channels therein and articles made thereby 失效
    Verfahren zur Herstellung von keramischenGegenständenmitKanälen。

    公开(公告)号:EP0261060A2

    公开(公告)日:1988-03-23

    申请号:EP87630180.5

    申请日:1987-09-10

    Abstract: A method is provided for producing a self-­supporting ceramic body comprising a polycrystalline ma­terial comprised of the oxidation reaction product of a parent metal (10) and having therein one or more channels which inversely replicate the geometry of a configured fugitive metal (6). The method includes providing an assembly of the configured fugitive metal (6) and the parent metal (10), optionally including a bed of per­meable filler (4), and heating the assembly to form a body of molten parent metal. The molten parent metal is oxidized under selected conditions to grow the polycry­stalline material to engulf the configured fugitive me­tal (6) (and to infiltrate the filler (4), if the filler (4) is present) and to cause the fugitive metal (6) to disperse into the engulfing polycrystalline material thereby leaving behind as the one or more channels the space formerly occupied by the configured fugitive me­tal (6). The method provides self-supporting ceramic bodies having therein one or more channels inversely replicating the shape of the configured fugitive metal (6).

    Abstract translation: 提供了一种用于生产自支撑陶瓷体的方法,其包括由母体金属(10)的氧化反应产物组成的多晶材料,并且在其中具有一个或多个通道,其反复地构成配置的短暂金属(6)的几何形状。 该方法包括提供配置的短暂金属(6)和母体金属(10)的组件,任选地包括可渗透填料床(4),并加热组件以形成熔融母体金属体。 熔化的母体金属在选择的条件下被氧化以生长多晶材料以吞没配置的短效金属(6)(并且如果存在填料(4))并渗透填料(4),并导致短暂的金属(6 )分散到吞没的多晶材料中,从而留下作为一个或多个通道的空间,该空间原先由配置的短暂金属(6)占据。 该方法提供了在其中具有一个或多个通道的自支撑陶瓷体,其相反地复制了配置的短暂金属(6)的形状。

    Ceramic articles with a modified metal-containing component and methods of making same
    9.
    发明公开
    Ceramic articles with a modified metal-containing component and methods of making same 失效
    陶瓷体与改性的金属以及其制造方法的一个组成部分。

    公开(公告)号:EP0256963A2

    公开(公告)日:1988-02-24

    申请号:EP87630133.4

    申请日:1987-07-28

    Abstract: A method of producing self-supporting ceramic bo­dies (10) having a modified metal-containing component in­cludes first providing a self-supporting ceramic body (10) comprising (i) a polycrystalline oxidation reaction pro­duct (12) formed upon oxidation of a molten parent metal precursor with an oxidant, and (ii) an interconnected metal-­containing component (14) at least partially accessible from one or more surfaces (15) of said ceramic body (10). The surface or surfaces (15) of the ceramic body (10) is contacted with a quantity of foreign metal different from said interconnected metal-containing component (14) at a temperature and for a time sufficient to allow for inter­diffusion, whereby at least a portion of said metal-con­taining component (14) is displaced by said foreign metal. The resulting ceramic body, having an altered metal-con­taining component, exhibits modified or improved pro­perties.

    Abstract translation: 具有修饰的含金属的组分生产自支承陶瓷体的方法(10),包括首先提供一种自支撑陶瓷体(10)包括:(i)一个多晶氧化反应产物(12)根据一种熔融母体的氧化而形成的 与氧化剂金属前体,和互相连接的含金属的组分(14)至少部分地从所述陶瓷体的一个或多个表面(15),(10)可访问的(ⅱ)。 陶瓷体的一个或多个表面(15)(10)与外来金属的从所述互相连接的含金属的组分(14)的不同的温度和足够长的时间的量相接触,以允许相互扩散,由此至少一个 含金属的组分(14)的所述部分被所述外来金属置换。 将所得的陶瓷体,其改变的含金属的组分,展品修饰或改善的性质。

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