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11.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：US5312785A
公开(公告)日：1994-05-17
申请号：US63587
申请日：1993-05-18
IPC分类号： C04B35/81 , C04B35/584 , C04B35/593 , C04B35/80 , C04B35/58
CPC分类号： C04B35/806 , C04B35/584 , C04B35/5935
摘要： A dense, self-reinforced silicon nitride ceramic body and a method of making such body. The body has a composition that includes: (a) silicon nitride; (b) a glassy grain boundary phase containing oxygen, nitrogen, magnesium, yttrium, silicon, zirconium, and at least one of titanium and aluminum; and (c) a second crystalline phase containing zirconium oxide; and (d) crystalline phases of metal zirconium silicide and/or metal zirconium silicon nitride. The ceramic exhibits high fracture toughness and high fracture strength and has a density at least 98 percent of theoretical.
摘要翻译： 一种致密的自增强氮化硅陶瓷体及其制造方法。 身体的组成包括：（a）氮化硅; （b）含有氧，氮，镁，钇，硅，锆和钛和铝中的至少一种的玻璃态晶界相; 和（c）含有氧化锆的第二结晶相; 和（d）金属硅化锆和/或金属氮化硅锆的结晶相。 该陶瓷具有高断裂韧性和高断裂强度，其密度至少为理论值的98％。
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公开(公告)号：US5143540A
公开(公告)日：1992-09-01
申请号：US584548
申请日：1990-09-18
CPC分类号： B22F3/156 , B22F3/15 , C22C1/051 , B22F2998/00
摘要： Substantially dense, void-free ceramic-metal composites are prepared from components characterized by chemical incompatibility and non-wetting behavior. The composites have a final chemistry similar to the starting chemistry and microstructures characterized by ceamic grains similar in size to the starting powder and the presence of metal phase. A method for producing the composites requires forming a homogeneous mixture of ceramic-metal, heating the mixture to a temperature that approximates but is below the temperature at which the metal begins to flow and pressing the mixture at such pressure that compaction and densification of the mixture occurs and an induced temperature spike occurs that exceeds the flowing temperature of the metal such that the mixture is further compacted and densified. The temperature spike and duration thereof remains below that at which significant reaction between metal and ceramic occurs. The method requires pressures of 60-250 kpsi employed at a rate of 5-250 kpsi/second.
摘要翻译： 由化学不相容性和非润湿性特征的组分制备基本致密的无空隙陶瓷 - 金属复合材料。 复合材料具有类似于起始化学和微观结构的最终化学特征，其特征在于尺寸与起始粉末相似的晶粒和金属相的存在。 制备复合材料的方法需要形成均匀的陶瓷 - 金属混合物，将混合物加热到接近但低于金属开始流动的温度的温度，并在混合物的压实和致密化的压力下压制混合物 发生并且发生超过金属流动温度的感应温度尖峰，使得混合物进一步压实和致密化。 温度峰值和持续时间仍然低于金属和陶瓷发生显着反应的温度峰值和持续时间。 该方法需要60-250kpsi的压力，速率为5-250kpsi /秒。
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14.发明授权
公开(公告)号：US5091347A
公开(公告)日：1992-02-25
申请号：US567889
申请日：1990-08-15
IPC分类号： C04B35/584 , C04B35/593 , C04B35/645 , C04B35/80 , C04B35/81
CPC分类号： C04B35/645 , C04B35/593 , C04B35/806
摘要： Prepare a self-reinforced silicon nitride ceramic body of high fracture toughness by hot-pressing a powder mixture containing silicon nitride and three other components under conditions such that densification and the in situ formation of .beta.-silicon nitride whiskers having a high aspect ratio occur. The other components are silicon dioxide as a densification aid, a conversion aid such as yttrium oxide and a compound, such as calcium oxide, which enhances growth of .beta.-silicon nitride whiskers. The resultant silicon nitride ceramic has a .beta.-silicon nitride cyrstalline phase, at least 20 volume percent of which is in the form of whiskers or elongated grains having an average aspect ratio of at least about 2.5, and a glassy second phase. The glassy phase contains the silicon dioxide, the conversion aid and the compound which enhances growth of .beta.-silicon nitride whiskers. The glassy phase may also include a minor amount of aluminum nitride or boron nitride.
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15.发明授权Method for applying discriminating layer onto porous ceramic filters via gas-borne prefabricated porous assemblies 有权通过气体预制多孔组件将鉴别层施加到多孔陶瓷过滤器上的方法公开(公告)号：US09321694B2
公开(公告)日：2016-04-26
申请号：US13813167
申请日：2011-08-17
IPC分类号： B05D1/12 , C04B38/00 , B01J35/04 , B01J37/02 , C04B41/00 , C04B41/45 , C04B41/85 , C04B111/00
CPC分类号： C04B38/0038 , B01J35/04 , B01J37/0215 , C04B41/009 , C04B41/4545 , C04B41/85 , C04B2111/00793 , C04B2111/0081 , C04B35/00 , C04B38/0006 , C04B35/195 , C04B14/4681 , C04B41/457 , C04B41/4582
摘要： A porous discriminating layer is formed on a ceramic support having at least one porous wall by (a) establishing a flow of a gas stream containing highly porous particles through the support to deposit a layer of the highly porous particles of a ceramic or ceramic precursor onto wall(s) of the support and (b) calcining said deposited layer to form the discriminating layer. This method is an inexpensive and effective route to forming a discriminating layer onto the porous wall.
摘要翻译： 通过以下步骤，在具有至少一个多孔壁的陶瓷载体上形成多孔鉴别层：（a）通过载体建立包含高度多孔颗粒的气流的流动，将陶瓷或陶瓷前体的高度多孔颗粒层沉积到 （b）煅烧所述沉积层以形成识别层。 该方法是在多孔壁上形成鉴别层的便宜且有效的途径。
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16.发明授权Metal-infiltrated titanium—silicon-carbide and titanium—aluminum-carbide bodies 有权金属渗透的钛 - 碳化硅和钛 - 铝 - 碳化物体公开(公告)号：US08863816B2
公开(公告)日：2014-10-21
申请号：US12994763
申请日：2009-06-03
IPC分类号： B22D23/04 , C22C1/10 , C04B41/51 , C04B35/56 , C04B35/71 , C04B41/00 , C04B41/88 , C22C29/06
CPC分类号： C04B35/5615 , C04B35/5618 , C04B35/71 , C04B41/009 , C04B41/5127 , C04B41/5155 , C04B41/88 , C04B2235/3843 , C04B2235/3891 , C04B2235/402 , C04B2235/405 , C04B2235/407 , C04B2235/608 , C04B2235/616 , C04B2235/6581 , C04B2235/6582 , C04B2235/75 , C04B2235/786 , C04B2235/788 , C04B2235/80 , C04B2235/85 , C04B2235/96 , C22C1/1036 , C22C29/06 , Y10T428/24992 , C04B41/4523
摘要： Densified composites of a metal such as copper or aluminum with a titanium-silicon-carbide or titanium-aluminum-carbide ceramic material are prepared by forming the ceramic material into a body, and infiltrating the body with the molten metal. The metal is able to rapidly penetrate into void spaces, between grain boundaries and even into the crystal structure of the ceramic grains to form a composite. The starting ceramic material may be previously densified, in which case various types of gradient structures can be produced easily. The process can be operated at low pressures, and so the hot pressing methods that normally must be used to densify these ceramic materials can be avoided.
摘要翻译： 通过将陶瓷材料形成体内并用熔融金属渗透身体，制备诸如铜或铝的金属与钛 - 碳化硅或钛 - 碳化铝陶瓷材料的致密复合材料。 该金属能够迅速地渗透到晶界之间的空隙，甚至陶瓷晶粒的晶体结构中，以形成复合材料。 起始陶瓷材料可以预先致密化，在这种情况下可以容易地生产各种类型的梯度结构。 该方法可以在低压下操作，因此可以避免通常必须用于致密化这些陶瓷材料的热压方法。
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17.发明申请METHOD FOR APPLYING DISCRIMINATING LAYER ONTO POROUS CERAMIC FILTERS VIA GAS-BORNE PREFABRICATED POROUS ASSEMBLIES 有权通过气体预先制备的多孔组件将分散层应用于多孔陶瓷过滤器的方法公开(公告)号：US20130149440A1
公开(公告)日：2013-06-13
申请号：US13813167
申请日：2011-08-17
IPC分类号： C04B38/00
CPC分类号： C04B38/0038 , B01J35/04 , B01J37/0215 , C04B41/009 , C04B41/4545 , C04B41/85 , C04B2111/00793 , C04B2111/0081 , C04B35/00 , C04B38/0006 , C04B35/195 , C04B14/4681 , C04B41/457 , C04B41/4582
摘要： A porous discriminating layer is formed on a ceramic support having at least one porous wall by (a) establishing a flow of a gas stream containing highly porous particles through the support to deposit a layer of the highly porous particles of a ceramic or ceramic precursor onto wall(s) of the support and (b) calcining said deposited layer to form the discriminating layer. This method is an inexpensive and effective route to forming a discriminating layer onto the porous wall.
摘要翻译： 通过以下步骤，在具有至少一个多孔壁的陶瓷载体上形成多孔鉴别层：（a）通过载体建立包含高度多孔颗粒的气流的流动，将陶瓷或陶瓷前体的高度多孔颗粒层沉积到 （b）煅烧所述沉积层以形成识别层。 该方法是在多孔壁上形成鉴别层的便宜且有效的途径。
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18.发明申请公开(公告)号：US20110132230A1
公开(公告)日：2011-06-09
申请号：US12952239
申请日：2010-11-23
申请人： Chan Han , Aleksander J. Pyzik
发明人： Chan Han , Aleksander J. Pyzik
IPC分类号： C04B28/26
CPC分类号： C04B12/005 , C04B28/008 , C04B40/0608 , C04B2111/00482 , C04B2111/28 , C04B2111/52 , C08K3/34 , C09D1/02 , C09D7/61 , Y02P40/165 , Y02W30/92 , Y02W30/94 , C04B14/06 , C04B14/106 , C04B14/465 , C04B18/08 , C04B18/141 , C04B22/064 , C04B40/0028
摘要： The present invention generally relates to a geopolymer precursor dry mixture, geopolymer precursor package, a process of preparing a geopolymer composition, and a method of providing a geopolymer composition to a geopolymer composition preparation site.
摘要翻译： 本发明一般涉及地质聚合物前体干混合物，地质聚合物前体包装，制备地质聚合物组合物的方法，以及向地质聚合物组合物制备部位提供地质聚合物组合物的方法。
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公开(公告)号：US20100304165A1
公开(公告)日：2010-12-02
申请号：US12783049
申请日：2010-05-19
申请人： Chan Han , Aleksander J. Pyzik , Jia Liu
发明人： Chan Han , Aleksander J. Pyzik , Jia Liu
CPC分类号： C09D1/00 , C04B20/1074 , C04B28/006 , C09D1/04 , Y02P40/165 , Y10T428/31931 , Y10T428/31938
摘要： The present invention relates to modified geopolymer compositions, geopolymer-coated organic polymer substrates, and methods of manufacturing and articles comprising same.
摘要翻译： 本发明涉及改性的地质聚合物组合物，地质聚合物涂覆的有机聚合物基材，以及制造方法和包含其的制品。
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公开(公告)号：US06844065B2
公开(公告)日：2005-01-18
申请号：US10327736
申请日：2002-12-23
申请人： Hari P. Reddy , Aleksander J. Pyzik , Ted A. Morgan , Sharon M. Allen , Jill R. Marra , Nicholas M. Shinkel
发明人： Hari P. Reddy , Aleksander J. Pyzik , Ted A. Morgan , Sharon M. Allen , Jill R. Marra , Nicholas M. Shinkel
CPC分类号： D01F8/06 , C04B16/0625 , C04B2111/346 , E04C5/073 , Y10T428/2913 , Y10T428/2929 , Y10T428/2933 , Y10T428/2964 , C04B20/1033
摘要： A monofilament plastic fiber useful in reducing plastic shrinkage cracking of concrete articles has been discovered. The fiber has a core that is a polyolefin that is at least partially enveloped by a sheath that is a copolymer of an olefin and at least one olefinically unsaturated comonomer selected from the group consisting of an unsaturated carboxylic acid, alkyl acrylate, alkyl methacrylate and vinyl ester.
摘要翻译： 已经发现了用于减少混凝土制品的塑性收缩开裂的单丝塑料纤维。 该纤维具有至少部分地被护套包围的聚烯烃，所述护套是烯烃和至少一种烯属不饱和共聚单体的共聚物，所述共聚单体选自不饱和羧酸，丙烯酸烷基酯，甲基丙烯酸烷基酯和乙烯基 酯。
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