Metal matrix composite which utilizes a barrier
    11.
    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。

    Metal matrix composite with a barrier
    12.
    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。

    Self-supporting composite bodies
    14.
    发明授权
    Self-supporting composite bodies 失效
    自支撑复合体

    公开(公告)号:US5296419A

    公开(公告)日:1994-03-22

    申请号:US16629

    申请日:1993-02-12

    摘要: Self-supporting bodies are produced by reactive infiltration of a parent metal into a boron nitride material typically resulting in a body comprising a boron-containing compound, a nitrogen-containing compound and metal. The mass to be infiltrated may contain one or more inert fillers admixed with the boron nitride, to produce a composite by reactive infiltration, which composite comprises a matrix which embeds the filler material. The matrix, in a composite body containing filler material, comprises one or more of metal, a boron-containing compound and a nitrogen-containing compound. The relative amounts of reactants and process conditions may be altered or controlled to yield a body containing varying volume percents of ceramic, metal and/or porosity. The mass to be infiltrated can be contained within a refractory vessel having a venting means included therein.

    摘要翻译: 通过将母体金属反应性渗透到氮化硼材料中而产生自支撑体,通常产生包含含硼化合物,含氮化合物和金属的体。 待渗透的物质可以包含一种或多种与氮化硼混合的惰性填料,以通过反应性渗透产生复合材料,该复合材料包括嵌入填料的基质。 含有填料的复合体中的基体包含一种或多种金属,含硼化合物和含氮化合物。 可以改变或控制反应物和工艺条件的相对量,以产生包含不同体积百分比的陶瓷,金属和/或孔隙的体。 待渗透的物质可以包含在其中包括排气装置的耐火容器中。

    Process for preparing self-supporting bodies and products made thereby
    16.
    发明授权
    Process for preparing self-supporting bodies and products made thereby 失效
    制备自支撑体及其制品的方法

    公开(公告)号:US4978644A

    公开(公告)日:1990-12-18

    申请号:US449521

    申请日:1989-12-12

    IPC分类号: C04B35/58 C04B35/65

    摘要: Self-supporting bodies are produced by reactive infiltration of a parent metal into a boron nitride material typically resulting in a body comprising a boron-containing compound, a nitrogen-containing compound and metal. The mass to be infiltrated may contain one or more inert fillers admixed with the boron nitride, to produce a composite by reactive infiltration, which composite comprises a matrix which embeds the filler material. The matrix, in a composite body containing filler material, comprises one or more of metal, a boron-containing compound and a nitrogen-containing compound. The relative amounts of reactants and process conditions may by altered or controlled to yield a body containing varying volume percents of ceramic, metal and/or porosity. The mass to be infiltrated can be contained within a refractory vessel having a venting means included therein.

    摘要翻译: 通过将母体金属反应性渗透到氮化硼材料中而产生自支撑体,通常产生包含含硼化合物,含氮化合物和金属的体。 待渗透的物质可以包含一种或多种与氮化硼混合的惰性填料,以通过反应性渗透产生复合材料,该复合材料包括嵌入填料的基质。 含有填料的复合体中的基体包含一种或多种金属,含硼化合物和含氮化合物。 反应物和工艺条件的相对量可以通过改变或控制以产生包含不同体积百分比的陶瓷,金属和/或孔隙率的主体。 待渗透的物质可以包含在其中包括排气装置的耐火容器中。

    Process for preparing self-supporting bodies
    17.
    发明授权
    Process for preparing self-supporting bodies 失效
    制定自力式机构的过程

    公开(公告)号:US5187128A

    公开(公告)日:1993-02-16

    申请号:US551748

    申请日:1990-07-12

    IPC分类号: C04B35/58 C04B35/65

    摘要: Self-supporting bodies are produced by reactive infiltration of a parent metal into a boron nitride material typically resulting in a body comprising a boron-containing compound, a nitrogen-containing compound and metal. The mass to be infiltrated may contain one or more inert fillers admixed with the boron nitride, to produce a composite by reactive infiltration, which composite comprises a matrix which embeds the filler material. The matrix, in a composite body containing filler material, comprises one or more of metal, a boron-containing compound and a nitrogen-containing compound. The relative amounts of reactants and process conditions may be altered or controlled to yield a body containing varying volume percents of ceramic, metal and/or porosity. The mass to be infiltrated can be contained within a refractory vessel having a venting means included therein.

    摘要翻译: 通过将母体金属反应性渗透到氮化硼材料中而产生自支撑体,通常产生包含含硼化合物,含氮化合物和金属的体。 待渗透的物质可以包含一种或多种与氮化硼混合的惰性填料,以通过反应性渗透产生复合材料,该复合材料包括嵌入填料的基质。 含有填料的复合体中的基体包含一种或多种金属,含硼化合物和含氮化合物。 可以改变或控制反应物和工艺条件的相对量,以产生包含不同体积百分比的陶瓷,金属和/或孔隙的体。 待渗透的物质可以包含在其中包括排气装置的耐火容器中。

    Method of modifying ceramic composite bodies by a post-treatment process
and articles produced thereby
    20.
    发明授权
    Method of modifying ceramic composite bodies by a post-treatment process and articles produced thereby 失效
    通过后处理工艺改变陶瓷复合体的方法和由此制备的制品

    公开(公告)号:US5162098A

    公开(公告)日:1992-11-10

    申请号:US700349

    申请日:1991-05-07

    摘要: This invention relates generally to a novel method of manufacturing a composite body, such as a ZrB.sub.2 -ZrC-Zr (optional) composite body, by utilizing a post-treatment process and to the novel products made thereby. More particularly, the invention relates to a method of modifying a composite body comprising one or more boron-containing compounds (e.g., a boride or a boride and a carbide) which has been made by the reactive infiltration of a molten parent metal into a bed or mass containing boron carbide, and optionally one or more inert fillers, to form the body.

    摘要翻译: 本发明一般涉及通过利用后处理工艺制造复合体,例如ZrB 2 -ZrC-Zr(任选的)复合体的新方法和由此制备的新产品。 更具体地说,本发明涉及一种修饰包括一种或多种含硼化合物(例如,硼化物或硼化物和碳化物)的复合体的方法,其通过将熔融母体金属的反应性渗入床形成 或含有碳化硼的物质,以及任选的一种或多种惰性填料以形成体。