Modified ceramic structures and methods of making the same
    141.
    发明公开
    Modified ceramic structures and methods of making the same 失效
    Modifizierte keramische Strukturen und Verfahren zu deren Herstellung。

    公开(公告)号:EP0261062A1

    公开(公告)日:1988-03-23

    申请号:EP87630182.1

    申请日:1987-09-10

    Abstract: A method of producing self-supporting ceramic structures (12) comprising (i) a polycrystalline oxidation reaction product formed upon oxidation of a molten parent metal (14) with an oxidant, and (ii) interconnected porosity (13) at least partially accessible from one or more surfaces (15) of said ceramic body. A second polycrystalline ceramic material is incorporated into the porosity of said ceramic body to modify or contribute to its properties.

    Abstract translation: 一种制备自支撑陶瓷结构(12)的方法,包括(i)在用氧化剂氧化熔融母体金属(14)时形成的多晶氧化反应产物,和(ii)至少部分可从 所述陶瓷体的一个或多个表面(15)。 将第二多晶陶瓷材料并入所述陶瓷体的孔隙中以修饰或有助于其性质。

    Method of making shaped ceramic composites with the use of a barrier
    144.
    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。

    THIN CERAMIC COMPOSITE BODIES AND METHODS FOR MAKING THE SAME
    145.
    发明公开
    THIN CERAMIC COMPOSITE BODIES AND METHODS FOR MAKING THE SAME 失效
    邓陶瓷复合成型及VERFAHRUNGEN生产它的

    公开(公告)号:EP0853601A1

    公开(公告)日:1998-07-22

    申请号:EP96934060.0

    申请日:1996-10-04

    CPC classification number: C04B35/803 C04B35/652

    Abstract: Ceramic bodies may be prepared using a combination of thin structure formation techniques and metal oxidation techniques. Specifically, a thin form is provided comprising at least one parent metal, at least one organic or inorganic fiber, and optionally comprising at least one inorganic filler material. The thin form may then be infiltrated with a liquid or fusible composition such as a polyureasilazane to increase the flexibility and formability of the thin form. The thin form may then be shaped or configured, either individually or in stacks, and rigidized to form for example, a self-supporting structure. The thin form may then be heated to a temperature above the melting point of the parent metal to react the molten parent metal in situ with an oxidant to form an oxidation reaction product, which is at least partially three-dimensionally interconnected to form a thin ceramic body in a desired shape or configuration.

    METHODS FOR MAKING GRADED COMPOSITE BODIES
    148.
    发明授权
    METHODS FOR MAKING GRADED COMPOSITE BODIES 失效
    一种用于生产梯度复合体过程

    公开(公告)号:EP0583379B1

    公开(公告)日:1997-01-22

    申请号:EP92912142.4

    申请日:1992-04-28

    Abstract: The present invention relates to the formation of bodies having graded properties. Particularly, the invention provides a method for forming a metal matrix composite body having graded properties. The graded properties are achieved by, for example, locating differing amounts of filler material in different portions of a formed body and/or locating different compositions of filler material in different portions of a formed body and/or locating different sizes of filler materials in different portions of a formed body. In addition, the invention provides for the formation of macrocomposite bodies wherein, for example, an excess of matrix metal can be integrally bonded or attached to a graded metal matrix composite portion of a macrocomposite body.

    BRAKE ROTORS, CLUTCH PLATES AND LIKE PARTS AND METHODS FOR MAKING THE SAME
    149.
    发明公开
    BRAKE ROTORS, CLUTCH PLATES AND LIKE PARTS AND METHODS FOR MAKING THE SAME 失效
    制动器或离合器盘和类似的部件及其制造方法

    公开(公告)号:EP0753109A1

    公开(公告)日:1997-01-15

    申请号:EP95914496.0

    申请日:1995-04-12

    Abstract: This invention relates to metal and metal matrix composite materials that are useful as, for example, brake rotors, clutch plates and other similar uses which benefit from material properties of the invention. In the case of metal matrix composite materials, clutch plates and brake rotors made according to the invention comprise an interconnected matrix metal embedding at least one filler material. For example, the at least one filler material comprises numerous acceptable filler materials present in a sufficient quantity to provide desired performance. The brake rotors and clutch plates according to the invention further comprise a coating on the surface thereof causing the metal or metal matrix composite body to function as a substrate. The coatings may be applied by various conventional techniques. Desirable results of placing a coating on a metal or metal matrix composite substrate brake rotor or clutch plate include a significant increase in the maximum operating temperature of the brake rotor or clutch plate and/or a significant reduction in weight in comparison to conventional materials, etc.

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