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    Removing metal from composite bodies and resulting products
    121.
    发明授权
    Removing metal from composite bodies and resulting products 失效
    从复合体和产品中除去金属

    公开(公告)号：US5350003A

    公开(公告)日：1994-09-27

    申请号：US90352

    申请日：1993-07-09

    Applicant: Birol Sonuparlak ,  William B. Johnson ,  Ali S. Fareed

    Inventor： Birol Sonuparlak ,  William B. Johnson ,  Ali S. Fareed

    IPC: B22D19/14 ,  C04B41/53 ,  C04B41/91 ,  C22C1/10 ,  C22C47/08 ,  B22D19/02

    CPC classification number: C04B41/009 ,  B22D19/14 ,  C04B41/53 ,  C04B41/91 ,  C22C1/1036 ,  C22C47/08 ,  C22C2001/1063

    Abstract: The present invention relates to a novel process for removal of at least a portion of at least one metallic component of a metallic constituent from a multi-phase composite body. Particularly, by providing at least one of an infiltration enhancer or an infiltration enhancer precursor or an infiltrating atmosphere to be in communication with a permeable mass, which contacts at least a portion of a composite body, said metallic component of the composite body, when made molten, is caused to spontaneously infiltrate the permeable mass. Such spontaneous infiltration occurs without the requirement for the application of any pressure or vacuum. The metallic constituent is essentially leached or removed from the multi-phase body by spontaneous infiltration.

    Abstract translation: 本发明涉及从多相复合体去除金属成分的至少一种金属成分的至少一部分的新方法。 特别地，通过提供渗透增强剂或渗透增强剂前体或渗透气氛与复合体的至少一部分接触的可渗透物质连接，所述复合体的所述金属成分在制成时 熔化，自发渗透渗透物质。 发生这种自发性渗透，而不需要施加任何压力或真空。 金属成分基本上通过自发渗透从多相体中浸出或除去。

    Aluminum metal matrix composites
    123.
    发明授权
    Aluminum metal matrix composites 失效
    铝金属基复合材料

    公开(公告)号：US5298339A

    公开(公告)日：1994-03-29

    申请号：US994064

    申请日：1992-12-18

    Applicant: Michael K. Aghajanian ,  Marc S. Newkirk

    Inventor： Michael K. Aghajanian ,  Marc S. Newkirk

    IPC: C22C1/10 ,  C22C32/00

    CPC classification number: C22C1/1036 ,  C22C32/0073 ,  Y10T428/12486 ,  Y10T428/12736 ,  Y10T428/12764

    Abstract: The present invention relates to novel ceramic-filled metal matrix composites and methods for making the same. Particularly, a permeable mass of filler material is spontaneously infiltrated by, for example, an aluminum alloy, in the presence of nitrogen-containing atmosphere. A reservoir feeding technique for forming metal matrix composite bodies is also disclosed. The reservoir feeding technique can also be used to form complex (e.g., a metal bonded to a metal matrix composite) metal matrix composite bodies.

    Abstract translation: 本发明涉及新型陶瓷填充金属基复合材料及其制备方法。 特别地，在含氮气氛的情况下，可以通过例如铝合金自发地渗入填充材料的渗透性物质。 还公开了一种用于形成金属基质复合体的储层馈送技术。 储层进料技术也可以用于形成复合物（例如，金属基复合材料的金属）金属基复合体。

    Silver-metal oxide composite material and process for producing the same
    124.
    发明授权
    Silver-metal oxide composite material and process for producing the same 失效
    银 - 金属氧化物复合材料及其制造方法

    公开(公告)号：US5286441A

    公开(公告)日：1994-02-15

    申请号：US892751

    申请日：1992-06-03

    Applicant: Akira Shibata

    Inventor： Akira Shibata

    IPC: C22C1/10 ,  C22C32/00 ,  H01H1/0237 ,  B22F3/14

    CPC classification number: C22C32/0021 ,  C22C1/1036 ,  H01H1/02372

    Abstract: A silver-metal oxide composite material comprising a silver matrix, (a) from 1 to 20% by weight, in terms of elemental metal, of an oxide of at least one element selected from the group consisting of Sn, Cd, Zn and In and, optionally, (b) an oxide of Mg, Zr, etc. and/or (c) an oxide of Cd, Sb, etc.; the oxides being dispersed in the form of fine particles with a particle size of not more than about 0.1 .mu.m uniformly and being bound to the silver matrix with no space left, and a process for producing the same. The composite material is excellent in physical and chemical strengths at high temperatures. The process can produce the composite product even with thick walls, within a markedly short time in high productivity. The composite material is useful as electrical contact materials and electrode materials for electric welding.

    Abstract translation: 一种银 - 金属氧化物复合材料，其包含银基体，（a）以元素换算换算为1至20重量％的选自Sn，Cd，Zn和In中的至少一种元素的氧化物 和（b）Mg，Zr等的氧化物和/或（c）Cd，Sb等的氧化物; 氧化物以均匀的粒径不大于约0.1（μm）的细颗粒的形式分散，并且与银基体结合，没有留下空间，以及其制备方法。 复合材料在高温下的物理和化学强度优异。 该方法即使在较厚的墙壁上也可以在高生产率的显着短时间内生产复合产品。 该复合材料可用作电接触材料和用于电焊的电极材料。

    Metal matrix composite which utilizes a barrier
    125.
    发明授权
    Metal matrix composite which utilizes a barrier 失效
    使用屏障的金属基复合材料

    公开(公告)号：US5277989A

    公开(公告)日：1994-01-11

    申请号：US934823

    申请日：1992-08-24

    Applicant: Michael K. Aghajanian ,  Terry D. Claar

    Inventor： Michael K. Aghajanian ,  Terry D. Claar

    IPC: C04B35/65 ,  C04B41/51 ,  C04B41/88 ,  C22C1/10 ,  C22C29/16

    CPC classification number: C04B35/652 ,  C04B41/5155 ,  C04B41/88 ,  C22C1/1036 ,  C22C2001/1063 ,  Y10T428/12007 ,  Y10T428/12486 ,  Y10T428/12576 ,  Y10T428/12583 ,  Y10T428/12736 ,  Y10T428/30

    Abstract: A net shaped ceramic-reinforced aluminum matrix composite is formed by forming a permeable mass of ceramic material with a defined surface boundary having a barrier, and contacting a molten aluminum-magnesium alloy with the permeable mass of ceramic material in the presence of a gas comprising from about 10 to 100% nitrogen, by volume, balance nonoxidizing gas, e.g. hydrogen or argon. Under these conditions, the molten alloy spontaneously infiltrates the ceramic mass under normal atmospheric pressures until it reaches the barrier. A solid body of the alloy can be placed adjacent to a permeable bedding of ceramic material having a barrier, and brought to the molten state, preferably to at least about 700.degree. C., in order to form the net shape aluminum matrix composite by infiltration. In addition to magnesium, auxiliary alloying elements may be employed with aluminum. The resulting composite products may contain a discontinuous aluminum nitride phase in the aluminum matrix.

    Abstract translation: 网状陶瓷增强铝基复合材料通过形成具有限定的具有阻挡层的表面边界的陶瓷材料的可渗透物质形成，并且在熔融的铝 - 镁合金与可渗透物质的陶瓷材料的存在下， 约10至100％的氮气（体积），平衡非氧化气体，例如 氢或氩。 在这些条件下，熔融合金在正常大气压力下自发渗透到陶瓷块中直至达到屏障。 合金的固体可以放置在与具有阻挡层的陶瓷材料的可渗透层合物附近，并且进入熔融状态，优选至少约700℃，以便通过渗透形成网状铝基复合材料 。 除了镁之外，辅助合金元素可以与铝一起使用。 所得到的复合产品可能在铝基体中含有不连续的氮化铝相。

    Cast composite materials having an Al-Mg matrix alloy
    128.
    发明授权
    Cast composite materials having an Al-Mg matrix alloy 失效
    具有AL-MG MATRIX合金的CAST复合材料

    公开(公告)号：US5246057A

    公开(公告)日：1993-09-21

    申请号：US839835

    申请日：1992-02-21

    Applicant: Inge L. H. Hansson ,  David J. Lloyd ,  Iljoon Jin ,  Michael D. Skibo

    Inventor： Inge L. H. Hansson ,  David J. Lloyd ,  Iljoon Jin ,  Michael D. Skibo

    IPC: C22C1/10 ,  C22C21/00 ,  C22C21/06 ,  C22C32/00

    CPC classification number: C22C32/00 ,  C22C1/1036 ,  C22C21/06 ,  C22C32/0036 ,  C22C2001/1047 ,  C22C2001/1052

    Abstract: A method for preparing a composite material comprises the steps of providing a first mixture of a molten aluminum-base matrix alloy having at least about 4 percent by weight magnesium, and a mass of discontinuous reinforcing particles that are not soluble in the molten matrix alloy, and mixing the first mixture to wet the matrix alloy to the particles and to distribute the particles throughout the volume of the molten matrix alloy. The first matrix alloy is diluted to reduce the magnesium content of the mixture to less than about 4 percent by weight magnesium, to produce a second mixture, and the second mixture is cast. The second mixture has at least about 5 volume percent particles, and preferably has about 5-25 volume percent particles.

    Abstract translation: 制备复合材料的方法包括以下步骤：提供具有至少约4重量％镁的熔融铝基基质合金和不溶于熔融基质合金的不连续增强颗粒的质量的第一混合物， 并将第一混合物混合以将基质合金润湿至颗粒，并将颗粒分散在整个熔融基质合金的体积中。 将第一种基质合金稀释以将混合物的镁含量降低至小于约4％（重量）的镁，以产生第二种混合物，并将第二种混合物浇铸。 第二混合物具有至少约5体积％的颗粒，优选具有约5-25体积％的颗粒。

    Investment casting technique for the formation of metal matrix composite bodies and products produced thereby
    130.
    发明授权
    Investment casting technique for the formation of metal matrix composite bodies and products produced thereby 失效
    投资铸造技术，用于形成金属基体复合体及由此产生的产品

    公开(公告)号：US5197528A

    公开(公告)日：1993-03-30

    申请号：US692764

    申请日：1991-04-29

    Applicant: John T. Burke

    Inventor： John T. Burke

    IPC: B22F3/12 ,  C22C1/10

    CPC classification number: C22C1/1036 ,  B22F3/1275 ,  B22F2998/00

    Abstract: The present invention relates to a novel method for forming metal matrix composite bodies and the novel products produced therefrom. A negative shape or cavity, which is complementary to the desired metal matrix composite body to be produced, is first formed. The formed cavity is thereafter filled with a permeable mass of filler material. Molten matrix metal is then induced to spontaneously infiltrate the filled cavity. Particularly, an infiltration enhancer and/or an infiltration enhancer precursor and/or an infiltrating atmosphere are also in communication with the filler material, at least at some point during the process, which permits the matrix metal, when made molten, to spontaneously infiltrate the permeable mass of filler material, which at some point during the processing, may become self-supporting. In a preferred embodiment, cavities can be produced by a process which is similar to the so-called lost-wax process.

    Abstract translation: 本发明涉及一种形成金属基复合体的新方法及其制备的新型产品。 首先形成与要制造的所需金属基体复合体互补的负形状或空腔。 之后填充形成的空腔填充可填充材料。 然后诱导熔融基质金属自发渗透填充的腔体。 特别地，渗透增强剂和/或渗透增强剂前体和/或渗透气氛也至少在该过程中的某一点与填充材料连通，这允许基质金属在熔融时自发渗透 填充材料的渗透质量，其在加工过程中的某一时刻可能变得自支撑。 在一个优选实施例中，可以通过类似于所谓的失蜡工艺的方法来生产空腔。

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