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    • 1. 发明授权
    • Method of making metal matrix composite with the use of a barrier
    • 使用屏障制作金属基复合材料的方法
    • US5482778A
    • 1996-01-09
    • US179463
    • 1994-01-10
    • Michael K. AghajanianTerry D. Claar
    • Michael K. AghajanianTerry D. Claar
    • C04B35/65C04B41/51C04B41/88C22C1/10C04B35/00
    • C04B35/652C04B41/5155C04B41/88C22C1/1036C22C2001/1063Y10T428/12007Y10T428/12486Y10T428/12576Y10T428/12583Y10T428/12736Y10T428/30
    • 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.
    • 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。
    • 2. 发明授权
    • Methods of making composite aluminum nitride ceramic articles having
embedded filler
    • 制备具有嵌入填料的复合氮化铝陶瓷制品的方法
    • US5420085A
    • 1995-05-30
    • US7387
    • 1993-01-21
    • Marc S. NewkirkHarry R. ZwickerAndrew W. UrquhartHarold D. LesherTerry D. ClaarMichael K. AghajanianJohn P. Biel, Jr.
    • Marc S. NewkirkHarry R. ZwickerAndrew W. UrquhartHarold D. LesherTerry D. ClaarMichael K. AghajanianJohn P. Biel, Jr.
    • C04B35/65C04B35/76C04B35/80C04B41/50C04B41/87C04B35/58
    • C04B41/5025C04B35/652C04B35/76C04B35/80C04B41/87
    • 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.
    • 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。
    • 3. 发明授权
    • Metal matrix composite which utilizes a barrier
    • 使用屏障的金属基复合材料
    • US5277989A
    • 1994-01-11
    • US934823
    • 1992-08-24
    • Michael K. AghajanianTerry D. Claar
    • Michael K. AghajanianTerry D. Claar
    • C04B35/65C04B41/51C04B41/88C22C1/10C22C29/16
    • C04B35/652C04B41/5155C04B41/88C22C1/1036C22C2001/1063Y10T428/12007Y10T428/12486Y10T428/12576Y10T428/12583Y10T428/12736Y10T428/30
    • 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.
    • 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。
    • 5. 发明授权
    • Metal matrix composite with a barrier
    • 带屏障的金属基复合材料
    • US5141819A
    • 1992-08-25
    • US657286
    • 1991-02-19
    • Michael K. AghajanianTerry D. Claar
    • Michael K. AghajanianTerry D. Claar
    • C04B35/65C04B41/51C04B41/88C22C1/10
    • C04B41/88C04B35/652C04B41/5155C22C1/1036C22C2001/1063Y10T428/12007Y10T428/12486Y10T428/12576Y10T428/12583Y10T428/12736
    • 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.
    • 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。
    • 9. 发明授权
    • High-temperature direct-contact thermal energy storage using
phase-change media
    • 使用相变介质的高温直接接触式热能储存
    • US4512388A
    • 1985-04-23
    • US506030
    • 1983-06-20
    • Terry D. ClaarRandy J. Petri
    • Terry D. ClaarRandy J. Petri
    • C09K5/06F28D20/02F24H7/04F28D17/00F28F23/00
    • F28D20/023C09K5/063Y02E60/145Y02E70/30Y02P20/13Y10T428/2982Y10T428/2991Y10T428/2993
    • A high-temperature direct-contact thermal energy storage element for use in a system for storage and retrieval of thermal energy in the range of about 400.degree. to about 3000.degree. F. The thermal energy is directly stored, without heat exchange tubes in composite latent/sensible heat thermal energy storage media utilizing the heat of fusion and high-temperature stability of alkaline metal and alkaline earth carbonates, chlorides, nitrates, nitrites, fluorides, hydroxides and sulfates and metal, metallic alloys and mixtures thereof maintained within a porous support-structure material which itself is capable of storage as sensible heat. The thermal energy storage according to the invention may be effectively utilized for storage of thermal energy derived from solar, industrial waste, process heat, and high-temperature gas reactor energy sources and retrieved for a wide variety of uses such as combustion air preheating, drying, space heating, heating of process gases, power generating heat engines and the like.
    • 一种高温直接接触式热能储存元件,用于在约400°至约3000°F范围内储存和回收热能的系统中。热能直接储存,无复合潜热的换热管 使用熔融热和碱金属和碱土金属碳酸盐,氯化物,硝酸盐,亚硝酸盐,氟化物,氢氧化物和硫酸盐的金属,金属合金及其混合物的热敏热存储介质,其保持在多孔载体 - 结构材料本身能够作为显热存储。 根据本发明的热能储存可以有效地用于储存源自太阳能,工业废物,工艺热和高温气体反应堆能源的热能,并且可用于多种用途,如燃烧空气预热,干燥 ,空间加热,工艺气体的加热,发电热机等。