Method for making internal shapes in a metal matrix composite body
    1.
    发明授权
    Method for making internal shapes in a metal matrix composite body 失效
    在金属基体复合体中制作内部形状的方法

    公开(公告)号:US5361824A

    公开(公告)日:1994-11-08

    申请号:US73996

    申请日:1993-06-09

    摘要: The present invention relates to a novel process for forming internal shapes in metal matrix composite bodies. Particularly, an infiltration enhancer and/or an infiltration enhancer precursor and/or an infiltrating atmosphere are in communication with a filler material or a preform, at least at some point during the process, which permits molten matrix metal to spontaneously infiltrate the filler material or preform. Additionally, the filler material or preform may contain a mandrel which is capable of surviving the infiltration process, said mandrel being removed after infiltration has occurred. Such spontaneous infiltration occurs without the requirement for the application of any pressure or vacuum.

    摘要翻译: 本发明涉及一种在金属基体复合体中形成内部形状的新方法。 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与填料或预型体连通,这允许熔融基质金属自发地渗透填料或 预制件。 此外,填充材料或预成型件可以包含能够在渗透过程中存活的心轴,所述心轴在渗透发生之后被移除。 发生这种自发性渗透,而不需要施加任何压力或真空。

    Macrocomposite bodies and production methods
    2.
    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

    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。

    Directional solidification of metal matrix composites
    5.
    发明授权
    Directional solidification of metal matrix composites 失效
    金属基复合材料的定向凝固

    公开(公告)号:US5303763A

    公开(公告)日:1994-04-19

    申请号:US980418

    申请日:1992-11-23

    摘要: A metal matrix composite is formed by contacting a molten matrix metal with a permeable mass of filler material or preform in the presence of an infiltrating atmosphere. Under these conditions, the molten matrix metal will spontaneously infiltrate the permeable mass of filler material or preform under normal atmospheric pressures. Once a desired amount of spontaneous infiltration has been achieved, or during the spontaneous infiltration step, the matrix metal which has infiltrated the permeable mass of filler material or preform is directionally solidified. The directionally solidified metal matrix composite may be heated to a temperature in excess of the liquidus temperature of the matrix metal and quenched. This technique allows the production of spontaneously infiltrated metal matrix composites having improved microstructures and properties.

    摘要翻译: 金属基质复合材料是通过使熔融基体金属与可渗透的填料或预成型体在渗透气氛下接触而形成的。 在这些条件下,熔融基质金属将在正常大气压力下自发渗透填料或预型体的渗透物质。 一旦实现了所需量的自发渗透,或者在自发渗透步骤期间,渗透了填充材料或预型体的可渗透物质的基质金属被定向凝固。 可以将定向凝固的金属基质复合材料加热到超过基质金属的液相线温度并淬火。 该技术允许生产具有改进的微结构和性质的自发渗透的金属基质复合材料。

    Metal-nitrogen polymer compositions comprising organic electrophiles
    9.
    发明授权
    Metal-nitrogen polymer compositions comprising organic electrophiles 失效
    包含有机亲电体的金属 - 氮聚合物组合物

    公开(公告)号:US5616650A

    公开(公告)日:1997-04-01

    申请号:US223294

    申请日:1994-04-05

    摘要: The compositions of this invention comprise uncrosslinked reaction mixtures comprising (1) at least one organic monomer, oligomer or polymer comprising a multiplicity of organic, electrophilic substituents, and (2) at least one metal-containing polymer comprising a metal-nitrogen polymer.Preferred compositions of this invention comprise reaction mixtures comprising (1) at least one organic monomer, oligomer or polymer comprising a multiplicity of organic, electrophilic substituents, and (2) at least one of: silicon-nitrogen polymers, aluminum-nitrogen polymers and boron-nitrogen and polymer combinations thereof comprising a multiplicity of sequentially bonded repeat units the compositions comprising the reaction products of the reaction mixtures, and the compositions obtained by crosslinking the reaction products of the reaction mixtures. The crosslinking may be effected through at least one of thermal-based, radiation-based free radical-based or ionic-based crosslinking mechanisms. Furthermore, the reaction mixtures, the composition comprising the reaction products and the crosslinked composition may further comprise at least one filler or reinforcement. The composition may be molded or shaped by various techniques into numerous useful articles. Furthermore, the compositions may be applied as coatings by various techniques onto numerous articles to enhance the articles usefulness.

    摘要翻译: 本发明的组合物包含未交联的反应混合物,其包含(1)至少一种包含多个有机亲电子取代基的有机单体,低聚物或聚合物,和(2)包含金属 - 氮聚合物的至少一种含金属聚合物。 本发明的优选组合物包含反应混合物,其包含(1)至少一种有机单体,低聚物或包含多个有机亲电取代基的聚合物,和(2)至少一种:硅 - 氮聚合物,铝 - 氮聚合物和硼 - 氮和聚合物组合,其包含多个顺序键合的重复单元,所述组合物包含反应混合物的反应产物,以及通过使反应混合物的反应产物交联而获得的组合物。 交联可以通过基于热的,基于辐射的基于自由基或基于离子的交联机理中的至少一种进行。 此外,反应混合物,包含反​​应产物和交联组合物的组合物还可包含至少一种填料或增强剂。 组合物可以通过各种技术模塑或成型成许多有用的制品。 此外,组合物可以通过各种技术涂覆到许多制品上以增强制品的用途。