Ceramic composite structures having intrinsically fitted encasement members thereon and methods of making the same
    5.
    发明公开
    Ceramic composite structures having intrinsically fitted encasement members thereon and methods of making the same 失效
    陶瓷复合体具有直接连接到其上的外壳和它们的制备方法。

    公开(公告)号:EP0262076A1

    公开(公告)日:1988-03-30

    申请号:EP87630177.1

    申请日:1987-09-03

    Abstract: A method is provided of producing a self-supporting ceramic composite structure having one or more encasement members (14), such as an encasing stell sleeve, joined to it by growth of the ceramic material to engagement surface(s) of the encasement member(s) (14). A parent metal is contacted with a body of filler (38) which is encased by the encasement mmber(s) (14). The resulting assembly is heated to melt and oxidize the parent metal, e.g., aluminum, to form a polycrystalline material comprising an oxidation reaction product which grows through the body of filler (38) and stops at the engagement surface(s) of the encasement member(s) (14) which thereby determines the surface geometry of the grown ceramic matrix. Upon cooling, the encasement member(s) (14) is shrinkfitted about the ceramic composite body. The invention also provides the resultant articles, for example, a ceramic composite body having a stainless steel member affixed thereto.

    Abstract translation: 提供了一种制造具有一个或多个包套部件(14)的自支承陶瓷复合结构的辅助方法,包括:如以包住套筒,结合到它由陶瓷材料的生长到啮合包套部件的表面(一个或多个)( 或多个)(14)。 母体金属与填料的(38)的主体的所有这是由包套mmber(一个或多个)(14)包裹的接触。 将所得的组件加热以熔化并氧化的母体金属,例如,铝,以形成包含氧化反应产物的多晶材料,其通过填充材料(38)的主体的增长,并在包套部件的啮合表面(一个或多个)停止 (一个或多个)(14),其由此确定的地雷所生长的陶瓷基体的表面几何形状。 在冷却时,包套部件(一个或多个)(14)约shrinkfitted陶瓷复合体。 因此,本发明提供所得制品,例如,具有不锈钢部件的陶瓷复合体固定在其上。

    Method of making shaped ceramic composites with the use of a barrier
    7.
    发明公开
    Method of making shaped ceramic composites with the use of a barrier 失效
    一种用于通过一个锁的应用程序来生产陶瓷复合模制品的方法。

    公开(公告)号:EP0245193A2

    公开(公告)日:1987-11-11

    申请号:EP87630076.5

    申请日:1987-04-30

    Abstract: In the present invention, there is provided a method for producing a self-supporting ceramic body by the oxidation of a parent metal to form a polycrystalline ceramic material consisting essentially of the oxidation reaction product of said parent metal with an oxidant, including a vapor-phase oxidant, and optionally one or more metallic constituents. The method comprises the steps of providing at least a portion of said parent metal with a barrier means at least partially spaced from said parent metal for establishing at least one surface of the ceramic body, and heating said parent metal to a temperature above its melting point but below the melting point of the oxidation reaction product to form a body of molten metal. At that temperature, the molten metal is reacted with the oxidant, thus forming the oxidation reaction product. At least a portion of the oxidation reaction product is maintained in contact with and between the molten metal and oxidant to transport the molten metal through the oxidation reaction product toward the barrier means 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 optionally leaving metal dispersed through the polycrystalline material. The reaction is continued to the barrier means to produce a ceramic body having the surface established by the barrier means. A composite is formed by superimposing a barrier onto a filler material, such as a preform, and infiltrating the filler with the polycrystalline ceramic matrix grown to the barrier means.

    Abstract translation: 在本发明中,提供了一种用于通过母体金属的氧化生产自支承陶瓷体,以形成多晶陶瓷材料与氧化剂基本上由所说的母体金属的氧化反应产物,包括蒸气 - 气相氧化剂,和任选的一种或多种金属成分。 该方法包括提供至少所述母金属的一部分与将阻挡元件至少部分地由所说的母体金属隔开,用于建立陶瓷体的至少一个表面的步骤,以及加热上述母体金属到高于其熔点的温度下 但是该氧化反应产物的熔点以下以形成熔融金属体。 在没有温度,熔融金属发生反应与氧化剂,从而形成氧化反应产物。 至少该氧化反应产物的一部分被保持在接触和熔融金属和氧化剂之间通过朝向屏障氧化反应产物的手段并且与氧化剂接触来输送熔融金属所以没有氧化反应产物继续形成 在氧化剂和先前形成的氧化反应产物之间的界面任选使金属通过多晶材料分散。 继续到阻挡的反作用装置,以产生具有由屏障建立的表面的陶瓷体的装置。 如预成型件,并与浸润生长到阻挡装置的多晶陶瓷基体中的填充材料:一种复合通过叠加阻挡到填充材料,颜色形成。

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