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115 条记录 (耗时 0.052 秒)

    Method of preparing refractory silicon carbide composites and coatings
    41.
    发明授权
    Method of preparing refractory silicon carbide composites and coatings 失效
    制备难熔碳化硅复合材料和涂层的方法

    公开(公告)号：US5079195A

    公开(公告)日：1992-01-07

    申请号：US144931

    申请日：1988-01-15

    申请人： Yet-Ming Chiang ,  Robert P. Messner

    发明人： Yet-Ming Chiang ,  Robert P. Messner

    IPC分类号： C04B35/573 ,  C04B35/80 ,  C04B41/50 ,  C04B41/87

    CPC分类号： C04B37/005 ,  C04B35/573 ,  C04B35/806 ,  C04B41/009 ,  C04B41/5059 ,  C04B41/87 ,  C04B2237/06 ,  C04B2237/066 ,  C04B2237/068 ,  C04B2237/08 ,  C04B2237/083 ,  C04B2237/363 ,  C04B2237/365 ,  C04B2237/385 ,  C04B2237/60 ,  C04B2237/61 ,  Y10T428/30

    摘要： A carbonaceous preform is infiltrated with a silicon melt alloyed with at least one element which is substantially insoluble in silicon carbide and which forms refractory phases. The resulting silicon carbide composite has substantially no free silicon. Silicides of the alloying elements are a suitable refractory phase. Suitable alloying elements which form refractory silicides include Mo, W, Re, Hf, Zr, Cr, B, and Ti. The carbonaceous preform may include graphite particulates, carbon particulates, porous carbon skeletons, carbon-carbon composites, carbon fibers, and graphite fibers. Particulates may be incorporated into the preform for the purpose of improving mechanical properties. Suitable particulates include refractory metals, carbides, nitrides, borides, silicides, and oxides. Fiber-reinforced composites can be produced by incorporating whiskers, chopped fibers, or continuous fibers of a refractory material into the preform. The refractory phase in the composite has a beneficial effect on the high temperature mechanical properties, such as the hardness, strength, toughness, and creep resistance of the silicon carbide composites.

    摘要翻译： 碳质预成型件被硅熔体渗透，硅熔体与至少一种基本上不溶于碳化硅并且形成难熔相的元素合金化。 所得的碳化硅复合材料基本上不含游离硅。 合金元素的硅化物是合适的难熔相。 形成耐火硅化物的合适的合金元素包括Mo，W，Re，Hf，Zr，Cr，B和Ti。 碳质预制件可以包括石墨颗粒，碳颗粒，多孔碳骨架，碳 - 碳复合材料，碳纤维和石墨纤维。 为了改善机械性能，可以将颗粒加入到预制件中。 合适的颗粒包括难熔金属，碳化物，氮化物，硼化物，硅化物和氧化物。 纤维增强复合材料可以通过将晶须，短切纤维或耐火材料的连续纤维加入到预制件中来生产。 复合材料中的难熔相对碳化硅复合材料的高温机械性能如硬度，强度，韧性和抗蠕变性具有有益的影响。

    Preparation of thin film superconducting oxides
    42.
    发明授权
    Preparation of thin film superconducting oxides 失效
    制备薄膜超导氧化物

    公开(公告)号：US4897378A

    公开(公告)日：1990-01-30

    申请号：US123929

    申请日：1987-11-23

    申请人： Yet-Ming Chiang

    发明人： Yet-Ming Chiang

    IPC分类号： C01B13/14 ,  C01B13/32 ,  C01G1/00 ,  C01G3/00 ,  C04B35/45 ,  H01B12/06 ,  H01B13/00 ,  H01L39/14 ,  H01L39/24

    CPC分类号： C04B35/4504 ,  H01L39/143 ,  H01L39/2419 ,  H01L39/2425 ,  H01L39/2454 ,  H01L39/2458

    摘要： Cations such as La, Sr, Cu, or Y, Ba, Cu are dissolved in an organic solvent such as ethylene glycol and citric acid. The solution is formed into either a free-standing or supported film which is dried to produce a solid organic polymer. The polymer is then fired in an oxidizing atmosphere (pyrolysis) to obtain the superconducting oxide. It is preferred that the film be spin coated on a substrate to produce uniform coatings of thicknesses less than one micrometer. The resulting superconducting oxide film is fully dense, of controlled microstructure, very homogeneous in composition and suitable for demanding electronic device purposes or as coatings to form superconducting wires or other current carrying components.

    摘要翻译： 阳离子如La，Sr，Cu或Y，Ba，Cu溶于有机溶剂如乙二醇和柠檬酸中。 将溶液形成为独立的或负载的膜，其被干燥以产生固体有机聚合物。 然后将聚合物在氧化气氛（热解）中焙烧，得到超导氧化物。 优选将膜旋涂在基底上以产生厚度小于1微米的均匀涂层。 所得到的超导氧化物膜是完全致密的，受控的微观结构，组成非常均匀，并且适用于要求苛刻的电子器件目的或作为形成超导线或其它载流部件的涂层。

    Nanoscale ion storage materials
    45.
    发明授权
    Nanoscale ion storage materials 有权
    纳米级离子储存材料

    公开(公告)号：US08323832B2

    公开(公告)日：2012-12-04

    申请号：US11672931

    申请日：2007-02-08

    申请人： Yet-Ming Chiang ,  Antoni S. Gozdz ,  Martin W. Payne

    发明人： Yet-Ming Chiang ,  Antoni S. Gozdz ,  Martin W. Payne

    IPC分类号： H01M4/58 ,  H01M10/44 ,  C01B25/45

    CPC分类号： C01B25/45 ,  H01M4/136 ,  H01M4/5825 ,  H01M10/0525 ,  H01M2004/021 ,  Y02E60/122 ,  Y02T10/7011

    摘要： Nanoscale ion storage materials are provided that exhibit unique properties measurably distinct from their larger scale counterparts. For example, the nanoscale materials can exhibit increased electronic conductivity, improved electromechanical stability, increased rate of intercalation, and/or an extended range of solid solution. Useful nanoscale materials include alkaline transition metal phosphates, such as LiMPO4, where M is one or more transition metals. The nanoscale ion storage materials are useful for producing devices such as high energy and high power storage batteries, battery-capacitor hybrid devices, and high rate electrochromic devices.

    摘要翻译： 提供纳米级离子存储材料，其显示出与其较大规模的对应物可测量不同的独特性质。 例如，纳米尺度材料可以表现出增加的电子导电性，改善的机电稳定性，增加的嵌入速率和/或扩展的固溶体范围。 有用的纳米尺度材料包括碱金属过渡金属磷酸盐，例如LiMPO4，其中M是一种或多种过渡金属。 纳米级离子存储材料可用于制造诸如高能量和高功率蓄电池，电池 - 电容器混合器件和高速率电致变色器件的器件。

    HIGH ENERGY DENSITY REDOX FLOW DEVICE
    49.
    发明申请
    HIGH ENERGY DENSITY REDOX FLOW DEVICE 有权
    高能量密度回流流量装置

    公开(公告)号：US20110200848A1

    公开(公告)日：2011-08-18

    申请号：US12970753

    申请日：2010-12-16

    申请人： Yet-Ming Chiang ,  W. Craig Carter ,  Bryan Y. Ho ,  Mihai Duduta ,  Pimpa Limthongkul

    发明人： Yet-Ming Chiang ,  W. Craig Carter ,  Bryan Y. Ho ,  Mihai Duduta ,  Pimpa Limthongkul

    IPC分类号： H01M4/36 ,  H01M14/00 ,  C01B21/24 ,  C01B21/22 ,  C01B31/24 ,  C01B21/36 ,  C07C69/96 ,  C07D307/33 ,  C07C43/11 ,  C07D307/06 ,  C07D317/12 ,  G01N33/00

    CPC分类号： H01M8/188 ,  B60L11/1875 ,  B60L11/1898 ,  H01M8/20 ,  Y02E60/528 ,  Y02T10/705 ,  Y02T90/34

    摘要： Redox flow devices are described in which at least one of the positive electrode or negative electrode-active materials is a semi-solid or is a condensed ion-storing electroactive material, and in which at least one of the electrode-active materials is transported to and from an assembly at which the electrochemical reaction occurs, producing electrical energy. The electronic conductivity of the semi-solid is increased by the addition of conductive particles to suspensions and/or via the surface modification of the solid in semi-solids (e.g., by coating the solid with a more electron conductive coating material to increase the power of the device). High energy density and high power redox flow devices are disclosed. The redox flow devices described herein can also include one or more inventive design features. In addition, inventive chemistries for use in redox flow devices are also described.

    摘要翻译： 描述了氧化还原流动装置，其中正极或负极活性材料中的至少一个是半固体或是冷凝离子存储电活性材料，并且其中至少一个电极活性材料被输送到 并且从发生电化学反应的组件产生电能。 半固体的电子导电性通过向悬浮液中添加导电颗粒和/或通过半固体中的固体的表面改性（例如，通过用更多的电子传导涂层材料涂覆固体以增加功率而增加） 的设备）。 公开了高能量密度和高功率氧化还原流量装置。 本文描述的氧化还原流动装置还可以包括一个或多个本发明的设计特征。 此外，还描述了用于氧化还原流动装置的发明化学物质。