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    Metal matrix composite with a barrier
    132.
    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

    Applicant: Michael K. Aghajanian ,  Terry D. Claar

    Inventor： Michael K. Aghajanian ,  Terry D. Claar

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

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

    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 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.

    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。

    Low-temperature consolidation metal-based compositions and method
    133.
    发明授权
    Low-temperature consolidation metal-based compositions and method 失效
    低温固结金属组合物和方法

    公开(公告)号：US5114469A

    公开(公告)日：1992-05-19

    申请号：US131497

    申请日：1987-12-10

    Applicant: Sam M. Weiman

    Inventor： Sam M. Weiman

    IPC: C22C1/00 ,  C22C1/10

    CPC classification number: C22C1/1036 ,  C22C1/005

    Abstract: A process for producing high-strength, substantially nonporous alloys by means of a three-component mixture, including admixing a first component of one or more low-melting temperature metals or alloys thereof, a second component of one or more high-melting temperature metals or alloys thereof, and a substantially inert third component of one or more refractory compounds, subjecting the mixture to changes in temperature so as to form a mixture capable of being shaped at a temperature well below the melting or decomposition temperature of the highest melting metal and the inert refractory compound.

    Abstract translation: 一种通过三组分混合物生产高强度，基本上无孔合金的方法，包括混合一种或多种低熔点金属或其合金的第一组分，一种或多种高熔点金属的第二组分 或其合金，以及一种或多种耐火化合物的基本上惰性的第三组分，使混合物温度变化，以形成能够在远低于最高熔融金属的熔融或分解温度的温度下成型的混合物，以及 惰性耐火材料。

    Method of making metal matrix composites
    139.
    发明授权
    Method of making metal matrix composites 失效
    制备金属基复合材料的方法

    公开(公告)号：US4871008A

    公开(公告)日：1989-10-03

    申请号：US142385

    申请日：1988-01-11

    Applicant: Ratnesh K. Dwivedi ,  Virgil Irick, Jr.

    Inventor： Ratnesh K. Dwivedi ,  Virgil Irick, Jr.

    IPC: B22D19/14 ,  B22D19/00 ,  C04B35/111 ,  C04B35/65 ,  C22C1/10 ,  C22C29/12 ,  C22C32/00 ,  C22C47/06 ,  C22C47/08 ,  C22C47/10

    CPC classification number: C22C32/0063 ,  C04B35/111 ,  C04B35/652 ,  C22C1/1036 ,  C22C2001/1063

    Abstract: An aluminum metal matrix composite comprises an aluminum metal matrix embedding a second filter, such as a ceramic second filler, and is formed by contacting, for example, a molten aluminum metal with a permeable mass of second filler within a ceramic impervious mold formed by growing a polycrystalline oxidation reaction product into a first filler. By hermetically sealing the second filler within the mold with a body of molten aluminum metal, the latter spontaneously infiltrates the mass of second filler at moderate temperatures, e.g. about 900.degree. C., without need of any other infiltration expedients. The molten mass containing the infiltrated ceramic filler is solidified to provide the metal matrix composite which may be recovered from the mold. Optionally, the solidification is carried out under bonding conditions including maintaining the solidifying material in direct contact with the ceramic mold, to provide the metal matrix composite joined to the mold, or a part thereof, as a structural component.

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