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    Flotation process for the formation of metal matrix composite bodies
    2.
    发明授权
    Flotation process for the formation of metal matrix composite bodies 失效
    用于形成金属基体复合体的浮选工艺

    公开(公告)号：US5529109A

    公开(公告)日：1996-06-25

    申请号：US394915

    申请日：1995-02-27

    申请人： Ratnesh K. Dwivedi ,  John T. Burke ,  Gerhard H. Schiroky ,  Michael K. Aghajanian ,  Steven D. Keck

    发明人： Ratnesh K. Dwivedi ,  John T. Burke ,  Gerhard H. Schiroky ,  Michael K. Aghajanian ,  Steven D. Keck

    IPC分类号： C04B41/51 ,  B22D19/14

    CPC分类号： C04B41/51

    摘要： The present invention relates to a novel method for forming metal matrix composite bodies. Particularly, a permeable mass of filler material is formed into a preform. The preform material can then be placed onto the surface of or into a matrix metal alloy, whereupon the matrix metal alloy spontaneously infiltrates the preform. After substantial complete infiltration of the preform, the preform begins to at least partially sink into the matrix metal alloy supply. The depth to which the preform may sink into the molten matrix metal alloy is controlled by utilizing a support means. The support means prevents the preform being infiltrated from submerging completely beneath the surface of the matrix metal alloy supply. The matrix metal which has infiltrated the preform is then allowed to cool, thus forming a metal matrix composite body.

    摘要翻译： 本发明涉及一种形成金属基体复合体的新方法。 特别地，将可渗透的填料材料形成为预制件。 然后可以将预成型材料放置在基体金属合金的表面上，然后基体金属合金自发地渗入预成型体。 在预成型件完全浸透之后，预成型件开始至少部分地沉入基体金属合金材料。 通过利用支撑装置来控制预成型件可能沉入熔融基质金属合金的深度。 支撑装置防止预成型件被浸入完全浸没在基体金属合金供应的表面之下。 然后使渗透预型体的基体金属冷却，形成金属基体复合体。

    Macrocomposite bodies and production methods
    3.
    发明授权
    Macrocomposite bodies and production methods 失效
    宏观复合体和生产方法

    公开(公告)号：US5501263A

    公开(公告)日：1996-03-26

    申请号：US976989

    申请日：1993-01-08

    申请人： Ratnesh K. Dwivedi ,  Kurt J. Becker ,  Danny R. White ,  Steven D. Keck ,  Mark G. Mortenson

    发明人： Ratnesh K. Dwivedi ,  Kurt J. Becker ,  Danny R. White ,  Steven D. Keck ,  Mark G. Mortenson

    IPC分类号： C04B35/622 ,  C04B35/65 ,  C22C1/10 ,  C22C47/00 ,  C22C47/08 ,  C22C47/12 ,  B22D19/14

    CPC分类号： C22C1/1036 ,  C04B35/652 ,  B22F2003/1014 ,  C22C2001/1063

    摘要： The present invention relates to a novel process for making a macrocomposite body. Specifically, a metal matrix composite body is first formed and thereafter, a ceramic body or a ceramic matrix composite body is caused to form from at least one surface of the already formed metal matrix composite body. The ceramic or ceramic composite body can be formed by, for example, changing from spontaneous infiltration conditions which permit a molten matrix metal to infiltrate a filler material or preform to conditions which favor the growth of a ceramic oxidation reaction product from the matrix metal (e.g., the matrix metal serves the dual role of a matrix metal and a parent metal for growth of oxidation reaction product). The growth of oxidation reaction product can occur from one or more surfaces of a metal matrix composite body and can be controlled to result in any desired shape. Moreover, the oxidation reaction product can be caused to grow directly into an atmosphere to form a ceramic body or can be caused to grow into an adjacently located filler material to form a ceramic matrix composite body. The oxidation reaction product can be formed substantially immediately after the metal matrix composite body is formed or may be formed at any point later in time.

    摘要翻译： 本发明涉及一种制造大复合体的新方法。 具体地说，首先形成金属基体复合体，然后从已经形成的金属基体复合体的至少一个表面形成陶瓷体或陶瓷基复合体。 陶瓷或陶瓷复合体可以通过例如从自发渗透条件形成，这允许熔融基质金属渗透填料或预成型体以有利于从基体金属生长陶瓷氧化反应产物的条件（例如， ，基质金属起着基质金属和母体金属作为氧化反应产物生长的双重作用）。 氧化反应产物的生长可以从金属基质复合体的一个或多个表面发生，并且可以被控制以产生任何所需的形状。 此外，可以使氧化反应产物直接生长到大气中以形成陶瓷体，或者可以使其生长成相邻的填料，形成陶瓷基复合体。 氧化反应产物可以在形成金属基质复合体之后基本上立即形成，或者可以在任何时间点形成。

    Methods for fabricating shapes by use of organometallic, ceramic precursor binders
    6.
    发明授权
    Methods for fabricating shapes by use of organometallic, ceramic precursor binders 失效
    通过使用有机金属，陶瓷前体粘合剂制造形状的方法

    公开(公告)号：US5433261A

    公开(公告)日：1995-07-18

    申请号：US121814

    申请日：1993-09-15

    申请人： Jonathan W. Hinton ,  Alexander Lukacs, III ,  James A. Jensen ,  Marc S. Newkirk ,  Michael K. Aghajanian ,  Ratnesh K. Dwivedi

    发明人： Jonathan W. Hinton ,  Alexander Lukacs, III ,  James A. Jensen ,  Marc S. Newkirk ,  Michael K. Aghajanian ,  Ratnesh K. Dwivedi

    IPC分类号： B22C1/10 ,  B22C1/20 ,  B22D19/14

    CPC分类号： B22C1/205

    摘要： Organometallic ceramic precursor binders are used to fabricate shaped bodies by different techniques. Exemplary shape making techniques which utilize hardenable, liquid, organometallic, ceramic precursor binders include the fabrication of negatives of parts to be made (e.g., sand molds and sand cores for metalcasting, etc.), as well as utilizing ceramic precursor binders to make shapes directly (e.g., brake shoes, brake pads, clutch parts, grinding wheels, polymer concrete, refractory patches and liners, etc.). A preferred embodiment of the invention involves the fabrication of preforms used in the formation of composite articles.

    摘要翻译： 有机金属陶瓷前体粘合剂用于通过不同的技术制造成形体。 使用可硬化，液体，有机金属，陶瓷前体粘合剂的示例性形状制造技术包括制造要制备的部件的负片（例如，用于金属铸造的砂模和砂芯等），以及利用陶瓷前体粘合剂来形成形状 直接（例如制动蹄，刹车片，离合器部件，砂轮，聚合物混凝土，耐火贴片和衬垫等）。 本发明的优选实施例涉及制造用于形成复合制品的预成型件。

    Brake rotors and methods for making the same
    8.
    发明授权
    Brake rotors and methods for making the same 失效
    制动转子和制造相同的方法

    公开(公告)号：US5620791A

    公开(公告)日：1997-04-15

    申请号：US370122

    申请日：1995-01-09

    申请人： Ratnesh K. Dwivedi ,  John T. Burke

    发明人： Ratnesh K. Dwivedi ,  John T. Burke

    IPC分类号： C22C1/10 ,  C22C32/00 ,  F16D65/00 ,  F16D65/12 ,  F16D69/02 ,  B32B5/16 ,  F16D13/60 ,  F16D69/00

    CPC分类号： C22C1/1015 ,  C22C1/1036 ,  C22C32/00 ,  C22C47/06 ,  F16D65/0006 ,  F16D65/125 ,  F16D69/027 ,  F16D2250/0007 ,  Y10T428/25 ,  Y10T428/252 ,  Y10T428/257 ,  Y10T428/259

    摘要： This invention relates to metal and ceramic matrix composite brake rotors comprising an interconnected matrix embedding at least one filler material. In the case of metal matrix composite materials, the at least one filler material comprises at least about 26% by volume of the brake rotor for most applications, and at least about 20% by volume for applications involving passenger cars and trucks. In a preferred embodiment of the present invention, the metal matrix composite brake rotor comprises an interconnected metal matrix containing at least about 28% by volume of a particulate filler material and more preferably at least about 30% by volume. Moreover, the composite rotors of the present invention exhibit a maximum operating temperature of at least about 900.degree. F. and preferably at least about 950.degree. F. and even more preferably at least about 975.degree. F. and higher.

    摘要翻译： 本发明涉及包含嵌入至少一种填充材料的互连基体的金属和陶瓷基复合制动转子。 在金属基质复合材料的情况下，至少一种填充材料包括用于大多数应用的制动转子的至少约26体积％，对于涉及乘用车和卡车的应用，至少约20体积％。 在本发明的一个优选实施例中，金属基复合制动转子包括相互连接的金属基体，其包含至少约28体积％的颗粒状填充材料，更优选至少约30体积％。 此外，本发明的复合转子的最大工作温度表现出至少约900°F，优选至少约950°F，甚至更优选至少约975°F或更高。

    Flotation process for the formation of metal matrix composite bodies
    9.
    发明授权
    Flotation process for the formation of metal matrix composite bodies 失效
    用于形成金属基体复合体的浮选工艺

    公开(公告)号：US5000246A

    公开(公告)日：1991-03-19

    申请号：US269373

    申请日：1988-11-10

    申请人： Ratnesh K. Dwivedi ,  John T. Burke

    发明人： Ratnesh K. Dwivedi ,  John T. Burke

    IPC分类号： C04B41/88 ,  B22D19/14 ,  C04B41/51 ,  C22C21/00 ,  C22C47/08

    CPC分类号： C04B41/51

    摘要： The present invention relates to a novel method for forming metal matrix composite bodies. Particularly, a permeable mass of filler material is formed into a preform. The preform material can then be floated onto the surface of or into a matrix metal alloy, whereupon the matrix metal alloy spontaneously infiltrates the preform. After substantial complete infiltration of the preform, the preform begins to at least partially sink into the matrix metal alloy supply. The matrix metal which has infiltrated the preform is then allowed to cool, thus forming a metal matrix composite body.

    Method for producing composite ceramic structures
    10.
    发明授权
    Method for producing composite ceramic structures 失效
    复合陶瓷结构的制造方法

    公开(公告)号：US5268340A

    公开(公告)日：1993-12-07

    申请号：US934592

    申请日：1992-08-24

    申请人： Marc S. Newkirk ,  Danny R. White ,  Ratnesh K. Dwivedi

    发明人： Marc S. Newkirk ,  Danny R. White ,  Ratnesh K. Dwivedi

    IPC分类号： C04B35/65 ,  C04B35/10

    CPC分类号： C04B35/652

    摘要： A method for producing a self-supporting ceramic composite body which comprises preparing a polycrystalline material as the oxidation reaction product of a parent metal with a vapor-phase oxidant, comminuting the resulting material to a particulate, forming a permeable mass of said particulate as filler, and infiltrating said particulate with an oxidation reaction product of a parent metal with a vapor-phase oxidant, thereby forming said ceramic composite body.

    摘要翻译： 一种自支撑陶瓷复合体的制造方法，其特征在于，制备作为母金属与气相氧化剂的氧化反应产物的多晶材料，将所得材料粉碎成颗粒，形成所述颗粒状的可渗透物质作为填料 ，并用母体金属的氧化反应产物与气相氧化剂渗透所述颗粒，从而形成所述陶瓷复合体。