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    A method for forming metal matrix composites having variable filler loadings and products produced thereby
    4.
    发明公开
    A method for forming metal matrix composites having variable filler loadings and products produced thereby 失效
    一种用于生产复合体的与可变填料密度和它们的产品的金属基体的过程。

    公开(公告)号：EP0369928A1

    公开(公告)日：1990-05-23

    申请号：EP89630173.6

    申请日：1989-09-28

    Applicant: LANXIDE TECHNOLOGY COMPANY, LP.

    Inventor： Aghajanian, Michael Kevork ,  Kennedy, Christopher Robin ,  Nagelberg, Alan Scott

    IPC: C22C1/09 ,  C22C1/10 ,  B22F3/26

    CPC classification number: B22F3/26 ,  C22C1/1036 ,  C22C2001/1063 ,  C22C2204/00

    Abstract: The present invention relates to a novel method for forming metal matrix composite bodies and novel products produced by the method. Particularly, a permeable mass of filler material or a preform (1) has included therein at least some matrix metal powder. Moreover, an infiltration enhancer and/or an infiltration enhancer precursor and/or an infiltrating atmosphere are in communication with the filler material or a preform (1), at least at some point during the process, which permits molten matrix metal to spontaneously infiltrate the filler material or preform (1). The presence of powdered matrix metal in the preform (1) or filler material reduces the relative volume fraction of filler material to matrix metal.

    Abstract translation: 本发明涉及用于形成金属基质复合体以及由该方法生产的新产品的新方法。 特别地，填充材料或预型体（1）的可渗透体已包括在其中至少一些基体金属粉末。 更完了，在渗透增强剂和/或渗透增强剂前体和/或在渗透气氛与填充材料或预型体的通信（1），至少在过程期间的某一时刻，使熔融基质金属自发地渗透 填料或预型（1）。 粉状基质金属的在预成型件（1）或填料的存在降低的填充材料的相对体积分数基质金属。

    Method of making shaped ceramic composites
    7.
    发明公开
    Method of making shaped ceramic composites 失效
    Verfahren zur Herstellung geformter keramischer Verbundwerkstoffe。

    公开(公告)号：EP0272997A2

    公开(公告)日：1988-06-29

    申请号：EP87630262.1

    申请日：1987-12-14

    Applicant: LANXIDE TECHNOLOGY COMPANY, LP.

    Inventor： Kennedy, Christopher Robin ,  Newkirk, Marc Stevens

    IPC: C04B35/65 ,  C04B35/10

    CPC classification number: C04B35/652

    Abstract: The present invention provides a method for pro­ducing a self-supporting ceramic composite by the oxida­tion of a parent metal (10) to form a polycrystalline cera­mic material consisting essentially of the oxidation re­action product of the parent metal (10) with an oxidant, including a vapor-phase oxidant, and, optionally, one or more metallic constituents. A permeable filler material, such as a preform (14), with at least one surface bearing a permeble stratum (18), is contacted with a body of molten parent metal (10) heated to a temperature above its melting point but below the melting point of the oxidation reaction product. At least a portion of the oxidation re­action product is maintained in contact with and between the molten metal (10) and oxidant to transport the molten metal through the oxidation reaction product toward the permeable stratum (18) 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 that has infiltrated the filler material. The reaction is continued to infiltrate at least a portion of the stratum (18) with the oxidation reaction product and to produce an intermediate ceramic body having an adjacent ceramic composite overlaid with a ceramic stra­tum. The ceramic stratum is removed from the underlying ceramic composite to produce a self-supporting ceramic com­posite having the surface established by the permeable stratum (18).

    Abstract translation: 本发明提供了一种通过母体金属（10）的氧化来生产自支撑陶瓷复合材料的方法，以形成主要由母体金属（10）与氧化剂的氧化反应产物组成的多晶陶瓷材料，氧化剂包括 气相氧化剂和任选的一种或多种金属组分。 具有至少一个带有渗透层（18）的表面的可渗透填充材料（例如预制件（14））与加热到高于其熔点但低于熔化温度的熔融母体金属（10）的主体接触 点的氧化反应产物。 氧化反应产物的至少一部分保持与熔融金属（10）和氧化剂接触并在熔融金属（10）和氧化剂之间输送熔融金属通过氧化反应产物朝向可渗透层（18）并与氧化剂接触，使得 氧化反应产物在氧化剂和预先形成的渗透了填料的氧化反应产物之间的界面处继续形成。 反应继续用氧化反应产物渗透到层（18）的至少一部分，并产生具有覆盖在陶瓷层上的相邻陶瓷复合体的中间陶瓷体。 从下面的陶瓷复合材料中除去陶瓷层，以产生具有由可渗透层（18）建立的表面的自支撑陶瓷复合材料。

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