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1.发明授权
公开(公告)号：US4834938A
公开(公告)日：1989-05-30
申请号：US185678
申请日：1988-04-25
CPC分类号： C04B37/042 , B22F5/00 , B22F5/10 , C04B35/653 , C22C1/1036 , B22F2005/103 , C04B2235/6565 , C04B2237/32 , C04B2237/36 , C04B2237/368 , Y10S264/36
摘要： A process is described for making a composite article without shrinkage, particularly of ceramic and metal wherein the article includes complex internal surfaces or cavities. The process requires forming an insert body that includes an external surface that corresponds to an internal cavity of the article. The insert body consists of a material having a melting temperature less than that of the article. The process further requires forming a porous compact about the insert body wherein the compact is formed into the substantially the net shape of the article. The compact is made of a material that is wetted by liquid insert material and has a sintering temperature greater than the wetting temperature of the insert material. The process further requires heating the article to a temperature such that the inserts substantially melts and infiltrates the porous compact forming the finished composite article. The process produces products including complex internal surfaces without the necessity of costly and sometimes technically difficult internal machining operations.
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公开(公告)号：US5521016A
公开(公告)日：1996-05-28
申请号：US377559
申请日：1995-01-24
申请人： Aleksander J. Pyzik , Uday V. Deshmukh , Stephen D. Dunmead , Jack J. Ott , Timothy L. Allen , Harold E. Rossow
发明人： Aleksander J. Pyzik , Uday V. Deshmukh , Stephen D. Dunmead , Jack J. Ott , Timothy L. Allen , Harold E. Rossow
CPC分类号： C22C1/1036 , C22C29/062 , C22C29/14 , Y10T428/12049 , Y10T428/12056 , Y10T428/12146 , Y10T428/12167
摘要： Subject boron carbide to a passivation treatment at a temperature within a range of 1350.degree. C. to less than 1800.degree. C. prior to infiltration with a molten metal such as aluminum. This method allows control of kinetics of metal infiltration and chemical reactions, size of reaction products and connectivity of B.sub.4 C grains and results in cermets having desired mechanical properties.
摘要翻译： 将碳化硼在熔融金属如铝浸渍之前，在1350℃至低于1800℃的温度下进行钝化处理。 这种方法可以控制金属渗透和化学反应的动力学，反应产物的大小和B4C晶粒的连通性，并导致金属陶瓷具有所需的机械性能。
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3.发明授权Method of preparing boron carbie/aluminum cermets having a controlled microstructure 失效制备具有受控微观结构的碳化硼/铝金属陶瓷的方法
公开(公告)号：US5394929A
公开(公告)日：1995-03-07
申请号：US154904
申请日：1993-11-19
CPC分类号： C22C1/1036 , C22C29/062 , C22C29/14
摘要： The invention relates to subjecting boron carbide to a heat treatment at a temperature within a range of 1250.degree. C. to less than 1800.degree. C. prior to infiltration with a molten metal such as aluminum. This method allows control of kinetics of metal infiltration and chemical reactions, size of reaction products and connectivity of B.sub.4 C grains and results in cermets having desired mechanical properties.
摘要翻译： 本发明涉及在熔融金属例如铝渗透之前，使碳化硼在1250℃至低于1800℃的温度下进行热处理。 这种方法可以控制金属渗透和化学反应的动力学，反应产物的大小和B4C晶粒的连通性，并导致金属陶瓷具有所需的机械性能。
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公开(公告)号：US3969105A
公开(公告)日：1976-07-13
申请号：US537048
申请日：1974-12-27
申请人： Jack J. Ott
发明人： Jack J. Ott
CPC分类号： C21C1/10 , C21C7/064 , C21C7/076 , Y02P10/242
摘要： An agent suitable to treat metals to, for example, desulfurize steel is disclosed. The treating agent is produced by coating a porous body with molten magnesium, oxidizing the magnesium coating and then impregnating the oxide coated porous body with magnesium.
摘要翻译： 公开了适合于将金属处理到例如脱硫钢的试剂。 处理剂通过用熔融镁涂覆多孔体，氧化镁涂层，然后用镁浸渍氧化物被覆多孔体来制造。
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5.发明授权
公开(公告)号：US6123797A
公开(公告)日：2000-09-26
申请号：US494125
申请日：1995-06-23
IPC分类号： B32B15/04 , B05D1/00 , C03C17/00 , C04B37/00 , C04B37/02 , C04B41/45 , C04B41/88 , C23C24/08 , C23C24/10 , C23C26/02 , B32B31/00
CPC分类号： C04B41/4507 , B05D1/00 , C03C17/007 , C04B37/006 , C23C24/10 , C23C26/02 , C03C2217/42 , C03C2217/45 , C03C2217/475 , C04B2235/5436 , C04B2235/5445 , C04B2235/658 , C04B2235/6581 , C04B2237/121 , C04B2237/366 , C04B2237/58 , C04B2237/597 , C04B2237/61 , C04B2237/708 , Y10T156/1038
摘要： A method of coating a fluidizable material onto a surface of a substrate, wherein the substrate is not wettable by the fluidizable material includes depositing a layer of powder particles on the surface of the substrate, the powder particles being wettable by the fluidizable material; contacting the fluidizable material to the layer of powder particles; and allowing the fluidizable material to wick between the powder particles and to contact the surface of the substrate.The method of the invention provides a method which requires little or no binders or organic solvents, is applicable to many different ceramic-metal formulations, allows easy control of the thickness of the tape, forms fairly dense tapes so that little or no shrinkage occurs upon densification at elevated temperatures, and does not require undesirably high processing temperatures.
摘要翻译： 一种将可流化材料涂覆在基材表面上的方法，其中所述基材不被所述可流化材料润湿，包括在所述基材的表面上沉积一层粉末颗粒，所述粉末颗粒可被可流化材料润湿; 使可流化材料接触粉末颗粒层; 并且允许可流化材料在粉末颗粒之间吸附并接触基底的表面。 本发明的方法提供了一种需要很少或不需要粘合剂或有机溶剂的方法，可应用于许多不同的陶瓷 - 金属配方，允许容易地控制带的厚度，形成相当密集的带，使得很少或没有收缩发生在 在高温下致密化，并且不需要不希望的高的加工温度。
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公开(公告)号：US5135545A
公开(公告)日：1992-08-04
申请号：US673622
申请日：1991-03-22
申请人： Aleksander J. Pyzik , Jack J. Ott
发明人： Aleksander J. Pyzik , Jack J. Ott
CPC分类号： C09K3/1427 , B24D18/0009 , B24D3/344
摘要： The present invention employs poly(ethyloxazoline) as a temporary binder and lubricant during the preparation of greenware articles. According to the present invention, molten poly(ethyloxazoline) promotes the compressibility of the powder used to form the greenware article, thus improving the density and strength of both the greenware and the abrasive article. The molten poly(ethyloxazoline) acts as a lubricant to permit a more efficient grain rearrangement under applied pressure and thereby increases the average density of the greenware article by 6 to 8 percent as compared to standard cold pressing.
摘要翻译： 本发明在制备绿色物品时使用聚（乙基恶唑啉）作为临时粘合剂和润滑剂。 根据本发明，熔融聚（乙基恶唑啉）促进了用于形成生物制品的粉末的压缩性，从而提高了绿色制品和磨料制品的密度和强度。 熔融的聚（乙基恶唑啉）作为润滑剂，以在施加的压力下更有效地进行晶粒重排，从而将绿色制品的平均密度与标准冷压相比增加6％至8％。
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