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公开(公告)号：US5482778A
公开(公告)日：1996-01-09
申请号：US179463
申请日：1994-01-10
CPC分类号： C04B35/652 , C04B41/5155 , C04B41/88 , C22C1/1036 , C22C2001/1063 , Y10T428/12007 , Y10T428/12486 , Y10T428/12576 , Y10T428/12583 , Y10T428/12736 , Y10T428/30
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。
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2.发明授权Methods of making composite aluminum nitride ceramic articles having embedded filler 失效制备具有嵌入填料的复合氮化铝陶瓷制品的方法
公开(公告)号：US5420085A
公开(公告)日：1995-05-30
申请号：US7387
申请日：1993-01-21
申请人： Marc S. Newkirk , Harry R. Zwicker , Andrew W. Urquhart , Harold D. Lesher , Terry D. Claar , Michael K. Aghajanian , John P. Biel, Jr.
发明人： Marc S. Newkirk , Harry R. Zwicker , Andrew W. Urquhart , Harold D. Lesher , Terry D. Claar , Michael K. Aghajanian , John P. Biel, Jr.
CPC分类号： C04B41/5025 , C04B35/652 , C04B35/76 , C04B35/80 , C04B41/87
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US5277989A
公开(公告)日：1994-01-11
申请号：US934823
申请日：1992-08-24
CPC分类号： C04B35/652 , C04B41/5155 , C04B41/88 , C22C1/1036 , C22C2001/1063 , Y10T428/12007 , Y10T428/12486 , Y10T428/12576 , Y10T428/12583 , Y10T428/12736 , Y10T428/30
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。
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4.发明授权
公开(公告)号：US5180697A
公开(公告)日：1993-01-19
申请号：US551306
申请日：1990-07-12
申请人： Terry D. Claar , Steven M. Mason , Kevin P. Pochopien , Danny R. White , William B. Johnson , Michael K. Aghajanian
发明人： Terry D. Claar , Steven M. Mason , Kevin P. Pochopien , Danny R. White , William B. Johnson , Michael K. Aghajanian
CPC分类号： C04B35/653 , C04B35/56 , C04B35/5607 , C04B35/5611 , C04B35/5622 , C04B35/5805 , C04B35/58064 , C04B35/58071 , C04B35/58078 , C04B35/652 , C04B41/5062 , C04B41/507 , C04B41/87 , C22C29/00
摘要： Self-supporting bodies are produced by reactive infiltration of a parent metal into a boron carbide material which may contain one or both of a boron donor material and a carbon donor material. The reactive infiltration typically results in a composite comprising a boron-containing compound, a carbon-containing compound and residual metal, if desired. The mass to be infiltrated may contain one or more inert filters admixed with the boron carbide material, boron-containing compound and/or carbon-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, ratios of one ceramic to another and porosity.
摘要翻译： 自支撑体通过母体金属的反应性渗透到可以含有硼给体材料和碳供体材料中的一种或两种的碳化硼材料中而产生。 如果需要，反应性渗透通常导致包含含硼化合物，含碳化合物和残余金属的复合材料。 待渗透的物质可以含有与碳化硼材料，含硼化合物和/或含碳化合物混合的一种或多种惰性过滤器。 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，一种陶瓷与另一陶瓷的比例和孔隙率的物体。
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公开(公告)号：US5141819A
公开(公告)日：1992-08-25
申请号：US657286
申请日：1991-02-19
CPC分类号： C04B41/88 , C04B35/652 , C04B41/5155 , C22C1/1036 , C22C2001/1063 , Y10T428/12007 , Y10T428/12486 , Y10T428/12576 , Y10T428/12583 , Y10T428/12736
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。
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公开(公告)号：US4935055A
公开(公告)日：1990-06-19
申请号：US141642
申请日：1988-01-07
IPC分类号： B22D19/14 , B22D11/00 , B22F3/26 , C04B35/65 , C04B41/51 , C04B41/88 , C22C1/10 , C22C47/08 , C22C47/10 , C22C49/06
CPC分类号： C04B41/009 , C04B35/652 , C04B41/5155 , C04B41/88 , C22C1/1036 , C22C2001/1063 , Y10T428/12486
摘要： A net shaped ceramic-reinforced aluminum matrix composite is produced 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.
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公开(公告)号：US5296417A
公开(公告)日：1994-03-22
申请号：US4889
申请日：1993-01-19
申请人： Terry D. Claar , Steven M. Mason , Kevin P. Pochopien , Danny R. White , William B. Johnson , Michael K. Aghajanian
发明人： Terry D. Claar , Steven M. Mason , Kevin P. Pochopien , Danny R. White , William B. Johnson , Michael K. Aghajanian
CPC分类号： C04B35/56 , C04B35/5607 , C04B35/5611 , C04B35/5622 , C04B35/5805 , C04B35/58064 , C04B35/58071 , C04B35/58078 , C04B35/652 , C04B35/653 , C04B41/5062 , C04B41/507 , C04B41/87 , C22C29/00 , Y10T428/12007
摘要： Self-supporting bodies are produced by reactive infiltration of a parent metal into a boron carbide material which may contain one or both of a boron donor material and a carbon donor material. The reactive infiltration typically results in a composite comprising a boron-containing compound, a carbon-containing compound and residual metal, if desired. The mass to be infiltrated may contain one or more inert fillers admixed with the boron carbide material, boron-containing compound and/or carbon-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, ratios of one ceramic to another and porosity.
摘要翻译： 自支撑体通过母体金属的反应性渗透到可以含有硼给体材料和碳供体材料中的一种或两种的碳化硼材料中而产生。 如果需要，反应性渗透通常导致包含含硼化合物，含碳化合物和残余金属的复合材料。 待渗透的物质可以含有与碳化硼材料，含硼化合物和/或含碳化合物混合的一种或多种惰性填料。 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，一种陶瓷与另一陶瓷的比例和孔隙率的物体。
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8.发明申请公开(公告)号：US20090130435A1
公开(公告)日：2009-05-21
申请号：US12215221
申请日：2008-06-25
CPC分类号： C04B35/565 , C04B35/573 , C04B2235/3826 , C04B2235/3891 , C04B2235/404 , C04B2235/428 , C04B2235/5436 , C04B2235/5472 , C04B2235/6562 , C04B2235/6565 , C04B2235/77 , C04B2235/80 , C04B2235/96 , C04B2235/9607 , C22C29/06
摘要： Composite bodies made by a silicon metal infiltration process that feature a silicon intermetallic, e.g., a metal silicide. Not only does this give the composite material engineer greater flexibility in designing or tailoring the physical properties of the resulting composite material, but the infiltrant also can be engineered compositionally to have much diminished amounts of expansion upon solidification, thereby enhancing net-shape-making capabilities. These and other consequences of engineering the metal component of composite bodies made by silicon infiltration permit the fabrication of large structures of complex shape.
摘要翻译： 通过硅金属渗透方法制成的复合体，其特征在于硅金属间化合物，例如金属硅化物。 这不仅使得复合材料工程师在设计或定制所得复合材料的物理性能方面具有更大的灵活性，而且浸润剂也可以组合工程化以在固化时具有大大减少的膨胀量，从而增强网状制造能力 。 通过硅渗透制造的复合材料的金属组分的这些和其他后果允许制造复杂形状的大结构。
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公开(公告)号：US06995103B2
公开(公告)日：2006-02-07
申请号：US10271312
申请日：2002-10-15
IPC分类号： C04B35/577 , C04B35/573 , F41H5/00
CPC分类号： C04B35/563 , B32B2315/02 , C04B35/565 , C04B35/573 , C04B35/6261 , C04B35/62625 , C04B35/62655 , C04B2235/3821 , C04B2235/3826 , C04B2235/405 , C04B2235/422 , C04B2235/428 , C04B2235/48 , C04B2235/5248 , C04B2235/5436 , C04B2235/5472 , C04B2235/728 , C04B2235/77 , C04B2235/80 , C04B2235/94 , C04B2235/96 , C04B2237/365 , F41H5/0414 , F41H5/0435
摘要： A silicon-containing composite body that would otherwise be brittle can be engineered to exhibit enhanced fracture toughness. Specifically, a silicon-ceramic composite body is produced, preferably by a reactive infiltration technique. The ceramic is selected such that it has a higher coefficient of thermal expansion (CTE) than does the silicon phase. At least at some point during processing, the silicon phase is at a temperature above its normal ductile/brittle transition temperature of about 500° C., and preferably above its melting point. The formed composite body containing the silicon phase is then cooled below its ductile/brittle transition. During cooling, the ceramic phase shrinks more than does the silicon phase, thereby placing the latter in a state of compressive stress. By the time the composite body has cooled to substantially ambient temperature, the induced compressive stress in the silicon phase is sufficient as to impart a measurable degree of semi-ductile character to the silicon phase. This pseudo-ductility manifests itself in the composite body as a significant increase in the fracture toughness of the body. For example, when the ceramic reinforcement was boron carbide particulate instead of silicon carbide (which has a CTE similar to that of silicon), fracture toughness increased by almost 30 percent.
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公开(公告)号：US06862970B2
公开(公告)日：2005-03-08
申请号：US09990175
申请日：2001-11-20
IPC分类号： C04B35/563 , C04B35/573 , F41H5/04 , F41H5/02
CPC分类号： F41H5/0435 , B32B2315/02 , C04B35/563 , C04B35/565 , C04B35/573 , C04B35/6261 , C04B35/62625 , C04B35/62655 , C04B2235/3821 , C04B2235/3826 , C04B2235/405 , C04B2235/422 , C04B2235/428 , C04B2235/48 , C04B2235/5248 , C04B2235/5436 , C04B2235/5472 , C04B2235/728 , C04B2235/77 , C04B2235/80 , C04B2235/94 , C04B2235/96 , C04B2237/365 , F41H5/0414
摘要： A composite body produced by a reactive infiltration process that possesses high mechanical strength, high hardness and high stiffness has applications in such diverse industries as precision equipment and ballistic armor. Specifically, the composite material features a boron carbide filler or reinforcement phase, and a silicon carbide matrix produced by the reactive infiltration of an infiltrant having a silicon component with a porous mass having a carbonaceous component. Potential deleterious reaction of the boron carbide with silicon during infiltration is suppressed by alloying or dissolving boron into the silicon prior to contact of the silicon infiltrant with the boron carbide. In a preferred embodiment of the invention related specifically to armor, good ballistic performance can be advanced by loading the porous mass or preform to be infiltrated to a high degree with one or more hard fillers such as boron carbide, and by limiting the size of the largest particles making up the mass. The instant reaction-bonded silicon carbide (RBSC) composite bodies surpass previous RBSC's as armor materials, and in this capacity approach the ballistic performance of current carbide armor ceramics but with potentially lower cost manufacturing methods, e.g., infiltration techniques.
摘要翻译： 通过具有高机械强度，高硬度和高刚度的反应性渗透方法生产的复合体可用于精密设备和防弹装甲等多种行业。 具体地，复合材料具有碳化硼填料或增强相，并且通过具有硅组分的浸润剂的反应性浸渗与具有碳质组分的多孔质量产生的碳化硅基体。 渗碳过程中碳化硼与硅的潜在有害反应可以通过在硅渗透剂与碳化硼接触之前将硼合金化或溶解到硅中来抑制。 在本发明的一个优选实施方案中，具体涉及铠装，通过将一种或多种硬质填料例如碳化硼加载到高度渗透的多孔质量体或预型体，可以提高良好的弹道性能，并且通过限制 弥补质量的最大颗粒。 即时反应粘结碳化硅（RBSC）复合体超过以前的RBSC作为铠装材料，并且在这种能力下接近目前的硬质合金装甲陶瓷的弹道性能，但具有潜在的较低成本的制造方法，例如渗透技术。
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