Method of making metal matrix composite with the use of a barrier
    31.
    发明授权
    Method of making metal matrix composite with the use of a barrier 失效
    使用屏障制作金属基复合材料的方法

    公开(公告)号:US5482778A

    公开(公告)日:1996-01-09

    申请号:US179463

    申请日:1994-01-10

    摘要: A net shaped ceramic-reinforced aluminum matrix composite is provided 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 spontaneous 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.

    摘要翻译: 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,并且在熔融的铝 - 镁合金与可渗透的陶瓷材料的物质的存在下,在气体存在下接触,形成网状陶瓷增强的铝基复合材料,所述气体包括 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。 合金的固体可以邻近具有阻挡层的陶瓷材料的可渗透层,并且进入熔融状态,优选至少约700℃,以便通过自发形成网状铝基复合材料 浸润。 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。

    Aluminum metal matrix composites
    32.
    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

    IPC分类号: C22C1/10 C22C32/00

    摘要: 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.

    摘要翻译: 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。

    Metal matrix composite which utilizes a barrier
    33.
    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

    摘要: 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.

    摘要翻译: 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。

    Method of forming a metal matrix composite body by a spontaneous
infiltration technique
    35.
    发明授权
    Method of forming a metal matrix composite body by a spontaneous infiltration technique 失效
    通过自发渗透技术形成金属基体复合体的方法

    公开(公告)号:US5172747A

    公开(公告)日:1992-12-22

    申请号:US702802

    申请日:1991-05-20

    IPC分类号: C04B41/51 C04B41/88

    CPC分类号: C04B41/5155 C04B41/88

    摘要: The present invention relates to the formation of a metal matrix composite body by a spontaneous infiltration technique. Particularly, an infiltration enhancer and/or infiltration enhancer precursor can be positioned at least partially between or at an interface between a matrix metal and a filler material (or preform) which is to be infiltrated by molten matrix metal. Moreover, at least at some point during the process, an infiltrating atmosphere may be in communication with the filler material or preform and/or matrix metal.

    摘要翻译: 本发明涉及通过自发渗透技术形成金属基质复合体。 特别地,渗透增强剂和/或渗透增强剂前体可以至少部分位于基质金属和将被熔融基质金属渗透的填料(或预型体)之间的界面之间或之间。 此外,至少在该过程中的某一点,渗透气氛可以与填充材料或预成型件和/或基体金属连通。

    Metal matrix composite with a barrier
    36.
    发明授权
    Metal matrix composite with a barrier 失效
    带屏障的金属基复合材料

    公开(公告)号:US5141819A

    公开(公告)日:1992-08-25

    申请号:US657286

    申请日:1991-02-19

    摘要: 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 contracting 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.

    摘要翻译: 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,并且在气体存在下将熔融的铝 - 镁合金与陶瓷材料的渗透物料接合, 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。 可以将合金的固体放置在具有阻挡层的陶瓷材料的可渗透层的附近,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。

    Composite materials and methods for making same
    40.
    发明授权
    Composite materials and methods for making same 失效
    复合材料及其制作方法

    公开(公告)号:US08128861B1

    公开(公告)日:2012-03-06

    申请号:US12150597

    申请日:2008-04-28

    IPC分类号: B28B1/00

    摘要: Current top performing SAPI systems are B4C-containing (hot pressed B4C or reaction bonded B4C). These systems will not function well versus future WC/Co threats due to the inability of B4C to withstand high pressure impacts. New approaches will be needed for next generation SAPI ceramics. Three related concepts are disclosed herein, each of which will lead to improved reaction bonded ceramics for next generation SAPI applications. The first concept aims to reactively heat treat reaction bonded B4C, causing. SiC and SiB6 to form at the expense of B4C. The second approach will add Ti to the system, thus allowing TiC and TiB2 to form at the expense of B4C. Finally, the third concept will evaluate the use of finer particle sizes, thus improving the static properties of the ceramics (with the aim of enhancing multi-hit performance). In all cases, preliminary work has been conducted to demonstrate the viability of the concepts. This will lead to a new family of advanced armor ceramics. These new armor ceramics will allow the modern soldier to be better protected versus next generation, high level threats (e.g., high pressure WC/Co projectiles) with a more ergonomic package (lower weight, less bulk). Further, the results disclosed herein will yield improvement versus the current tool steel threats.

    摘要翻译: 目前高性能SAPI系统是含B4C(热压B4C或反应键合B4C)。 由于B4C不能承受高压冲击,这些系统对于未来的WC / Co威胁将不能很好地运行。 下一代SAPI陶瓷将需要新的方法。 本文公开了三个相关概念,每个概念将导致用于下一代SAPI应用的改进的反应结合陶瓷。 第一个概念旨在反应性地热处理反应结合的B4C,导致。 SiC和SiB6以B4C为代价形成。 第二种方法将Ti添加到系统中,从而使TiC和TiB2以B4C为代价形成。 最后,第三个概念将评估使用更细的粒径,从而改善陶瓷的静电特性(目的是提高多重击打性能)。 在所有情况下,已经进行了初步的工作来证明概念的可行性。 这将导致一个新的先进装甲陶瓷家族。 这些新的装甲陶瓷将使现代士兵得到更好的保护,与下一代高水准的威胁(例如,高压WC / Co射弹)相比,具有更符合人体工程学的包装(重量轻,体积较小)。 此外,本文公开的结果将相对于当前的工具钢威胁产生改进。