Method of modifying the properties of a metal matrix composite body
    1.
    发明授权
    Method of modifying the properties of a metal matrix composite body 失效
    改性金属基复合体的性能的方法

    公开(公告)号:US5518061A

    公开(公告)日:1996-05-21

    申请号:US199413

    申请日:1994-02-22

    摘要: The present invention relates to modifying the properties of a metal matrix composite body by a post formation process treatment and/or a substantially contiguous modification treatment. The post formation process treatment may be applicable to a variety of metal matrix composite bodies produced by various techniques, and is particularly applicable to modifying the properties of a metal matrix composite body produced by a spontaneous infiltration technique. The substantially contiguous modification process may also be used primarily in conjunction with metal matrix composite bodies produced according to a spontaneous infiltration technique. Particularly, at least a portion of the matrix metal of the metal matrix composite body and/or the filler material of the metal matrix composite body is modified or altered during and/or after the formation process.

    摘要翻译: 本发明涉及通过后形成工艺处理和/或基本相邻的改性处理来改性金属基质复合体的性质。 后形成处理可以适用于通过各种技术制造的各种金属基复合体,特别适用于通过自发渗透技术制造的金属基复合体的特性。 基本相邻的改性方法也可以主要与根据自发渗透技术制备的金属基质复合体一起使用。 特别地,金属基体复合体的基质金属和/或金属基体复合体的填充材料的至少一部分在形成过程中和/或之后被修饰或改变。

    Method of modifying the properties of a metal matrix composite body
    3.
    发明授权
    Method of modifying the properties of a metal matrix composite body 失效
    改性金属基复合体的性能的方法

    公开(公告)号:US5301738A

    公开(公告)日:1994-04-12

    申请号:US841241

    申请日:1992-02-24

    摘要: The present invention relates to modifying the properties of a metal matrix composite body by a post formation process modification treatment. The post formation process treatment may be applicable to a variety of metal matrix composite bodies produced by various techniques, and is particularly applicable to modifying the properties of a metal matrix composite body produced by a spontaneous infiltration technique. Particularly, at least a portion of the matrix metal of the metal matrix composite body and/or the filler material of the metal matrix composite body is modified or altered after the formation process. Preferably, the preform contains a second non-metal material, an infiltration enhancer of infiltration enhancer precursor, and an infiltration atmosphere.

    摘要翻译: 本发明涉及通过后形成工艺改性处理改性金属基复合体的性能。 后形成处理可以适用于通过各种技术制造的各种金属基复合体,特别适用于通过自发渗透技术制造的金属基复合体的特性。 特别地,金属基体复合体的基体金属的至少一部分和/或金属基复合体的填充材料在形成工序之后被修改或改变。 优选地,预成型体包含第二非金属材料,渗透增强剂前体的渗透增强剂和渗透气氛。

    Methods of making composite aluminum nitride ceramic articles having
embedded filler
    4.
    发明授权
    Methods of making composite aluminum nitride ceramic articles having embedded filler 失效
    制备具有嵌入填料的复合氮化铝陶瓷制品的方法

    公开(公告)号:US5420085A

    公开(公告)日:1995-05-30

    申请号:US7387

    申请日:1993-01-21

    摘要: A method of making self-supporting ceramic composite structures having filler embedded therein includes infiltrating a permeable mass of filler with polycrystalline material comprising an oxidation reaction product obtained by oxidation of a parent metal such as aluminum and optionally, containing therein non-oxidized constituents of the parent metal. The structure is formed by placing a parent metal adjacent to a permeable filler and heating the assembly to melt the parent metal and provide a molten body of parent metal which is contacted with a suitable vapor-phase oxidant. Within a certain temperature region and optionally, aided by one or more dopants in or on the parent metal, molten parent metal will migrate through previously formed oxidation reaction product into contact with the oxidant, causing the oxidation reaction product to grow so as to embed the adjacent filler and provide the composite structure. In a preferred embodiment, a parent metal comprising aluminum is oxidized by a vapor-phase oxidant comprising nitrogen to form a ceramic matrix comprising an aluminum nitride oxidation reaction product. In a particularly preferred embodiment, one or more protective coatings are applied to the filler prior to formation of the aluminum nitride oxidation reaction product matrix.

    摘要翻译: 制造具有嵌入其中的填料的自支撑陶瓷复合结构的方法包括用多晶材料渗透可渗透的填料,所述多晶材料包含通过氧化母体金属如铝而获得的氧化反应产物,并且任选地含有其中的非氧化成分 母金属。 通过将母体金属放置在可渗透填料附近并加热该组件以熔化母体金属并提供与合适的气相氧化剂接触的母体金属的熔融体来形成结构。 在一定温度范围内,任选地,由母体金属中或母体金属上的一种或多种掺杂剂辅助,熔融母体金属将迁移通过预先形成的氧化反应产物与氧化剂接触,使氧化反应产物生长,从而嵌入 相邻填料并提供复合结构。 在优选的实施方案中,包含铝的母体金属被包含氮的气相氧化剂氧化以形成包含氮化铝氧化反应产物的陶瓷基体。 在特别优选的实施方案中,在形成氮化铝氧化反应产物基质之前,将一种或多种保护性涂料施加到填料上。

    Macrocomposite bodies
    5.
    发明授权
    Macrocomposite bodies 失效
    大复合体

    公开(公告)号:US5618635A

    公开(公告)日:1997-04-08

    申请号:US411055

    申请日:1995-03-27

    摘要: The present invention relates to the formation of a macrocomposite body by spontaneously infiltrating a permeable mass of filler material or a preform with molten matrix metal and bonding the spontaneously infiltrated material to at least one second material such as a ceramic or ceramic containing body and/or a metal or metal containing body. Particularly, an infiltration enhancer and/or infiltration enhancer precursor and/or 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. Moreover, prior to infiltration, the filler material or preform is placed into contact with at least a portion of a second material such that after infiltation of the filler material or preform, the infiltrated material is bonded to the second material, thereby forming a macrocomposite body.

    摘要翻译: 本发明涉及通过自发渗透填充材料的可渗透物质或具有熔融基质金属的预成型体并将自发渗透的材料结合到至少一种第二材料如陶瓷或含陶瓷的体和/或 含金属或金属的物体。 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处与填料或预型体连通,这允许熔融基质金属自发地渗入填料或预型体。 此外,在渗透之前,将填料或预型体放置成与第二材料的至少一部分接触,使得在渗入填料或预型体之后,渗透的材料结合到第二材料,由此形成大复合体 。

    Methods for making thin metal matrix composite bodies and articles
produced thereby
    7.
    发明授权
    Methods for making thin metal matrix composite bodies and articles produced thereby 失效
    制造薄金属基复合体及其制品的方法

    公开(公告)号:US5585190A

    公开(公告)日:1996-12-17

    申请号:US186194

    申请日:1994-01-24

    摘要: The present invention relates to a novel process for forming thin metal matrix composite bodies. Particularly, an infiltration enhancer and/or an infiltrating atmosphere are in communication with a filler material or preform, at least at some point during the process, which permits molten matrix metal to spontaneously infiltrate the filler material or preform. Such spontaneous infiltration occurs without the application of any pressure or vacuum. In an embodiment of the present invention, the filler material may be sprayed upon a thin sheet of matrix metal. Alternatively, the filler material may be shaped via tape casting, slip casting, etc. to provide a thin preform. In another embodiment of the present invention, a body of matrix metal may be coated with a filler material such that upon spontaneous infiltration a metal matrix composite body is produced which inversely replicates the configuration of the original body of matrix metal. In yet another embodiment of the present invention, a plurality of thin tape cast preforms which are segregated by a barrier material (e.g., graphite foil) may be infiltrated with a matrix metal during a single spontaneous infiltration process.

    摘要翻译: 本发明涉及一种形成薄金属基复合体的新方法。 特别地,渗透增强剂和/或渗透气氛至少在该过程中的某一点处与填料或预型体连通,这允许熔融基质金属自发地渗入填料或预型体。 这种自发渗透发生在没有施加任何压力或真空的情况下。 在本发明的一个实施例中,填充材料可以喷涂在基体金属薄片上。 或者,填充材料可以通过带铸造,滑移浇铸等形成,以提供薄的预成型件。 在本发明的另一个实施例中,基体金属体可以用填充材料涂覆,使得当自发渗透时,产生金属基体复合体,其反向地复制基体金属原体的构型。 在本发明的另一个实施方案中,在单次自发渗透过程中,通过阻挡材料(例如,石墨箔)隔离的多个薄带铸造预制件可以用基质金属渗透。

    Metal matrix composite bodies utilizing a crushed polycrystalline
oxidation reaction product as a filler
    8.
    发明授权
    Metal matrix composite bodies utilizing a crushed polycrystalline oxidation reaction product as a filler 失效
    使用破碎的多晶氧化反应产物作为填料的金属基质复合体

    公开(公告)号:US5541004A

    公开(公告)日:1996-07-30

    申请号:US303567

    申请日:1994-09-09

    摘要: The present invention relates to a novel method for forming metal matrix composite bodies and novel metal matrix composite bodies produced thereby. Particularly, a polycrystalline oxidation reaction product of a parent metal and an oxidant is first formed. The polycrystalline oxidation reaction product is thereafter comminuted into an appropriately sized filler material which can be placed into a suitable container or formed into a preform. The filler material or preform of comminuted polycrystalline oxidation reaction product is thereafter placed into contact with a matrix metal alloy in the presence of an infiltration enhancer, and/or an infiltration enhancer precursor and/or an infiltrating atmosphere, at least at some point during the process, whereupon the matrix metal alloy spontaneously infiltrates the filler material or preform. As a result of utilizing comminuted or crushed polycrystalline oxidation reaction product, enhanced infiltration (e.g., enhanced rate or amount) is achieved. Moreover, novel metal matrix composite bodies are produced.

    摘要翻译: 本发明涉及一种形成金属基复合体的新颖方法和由其制造的新型金属基复合体。 特别地,首先形成母体金属和氧化剂的多晶氧化反应产物。 然后将多晶氧化反应产物粉碎成适当尺寸的填充材料,其可以放置在合适的容器中或形成预成型体。 此后,在渗透增强剂和/或渗透增强剂前体和/或渗透气氛的存在下,将粉末状多晶氧化反应产物的填料或预成型体置于基质金属合金中,至少在 因此基体金属合金自发地渗入填料或预成型体。 作为利用粉碎或破碎的多晶氧化反应产物的结果,实现了增强的渗透(例如增强的速率或量)。 此外,还生产出新颖的金属基复合体。