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46 条记录 (耗时 0.039 秒)

    Article with internal wear resistant surfaces
    24.
    发明授权
    Article with internal wear resistant surfaces 失效
    内部耐磨表面

    公开(公告)号：US5064728A

    公开(公告)日：1991-11-12

    申请号：US600456

    申请日：1990-10-19

    申请人： Swaminathan Sunder ,  Diwakar Garg ,  Paul N. Dyer

    发明人： Swaminathan Sunder ,  Diwakar Garg ,  Paul N. Dyer

    IPC分类号： C23C16/08 ,  C23C16/14 ,  C23C16/30 ,  C23C16/32 ,  C23C28/00

    CPC分类号： C23C28/00 ,  C23C16/08 ,  C23C16/14 ,  C23C16/30 ,  C23C16/32 ,  Y10S428/932 ,  Y10T428/12576 ,  Y10T428/12583 ,  Y10T428/1284

    摘要： A method is described for improving the erosion and abrasion wear resistance and hardness of the internal wear surfaces of structures such as nozzles, jets, ducts, chutes, powder handling tubes, valve housings, conveyors, drill bushings and the like. A substantially pure tungsten layer is chemical vapor deposited on the internal wear surface of the body of the structure followed by a chemical vapor deposited top coating comprising a mixture of tungsten and tungsten carbide. The tungsten carbide is selected from the group consisting of W.sub.2 C, W.sub.3 C, and mixtures thereof and is fine grained, non-columnar and has a substantially layered microstructure. Also described are structures formed by the method.

    摘要翻译： 描述了一种用于改善诸如喷嘴，喷嘴，管道，滑槽，粉末处理管，阀壳体，输送机，钻井套管等结构的内部磨损表面的耐蚀磨损性和硬度的方法。 基本上纯的钨层被化学气相沉积在结构体的内部磨损表面上，随后是包含钨和碳化钨的混合物的化学气相沉积顶部涂层。 碳化钨选自W2C，W3C及其混合物，并且是细晶粒，非柱状的并且具有基本上分层的微结构。 还描述了通过该方法形成的结构。

    Low temperature chemical vapor deposition method for forming tungsten and tungsten carbide
    25.
    发明授权
    Low temperature chemical vapor deposition method for forming tungsten and tungsten carbide 失效
    用于形成钨和碳化钨的低温化学气相沉积方法

    公开(公告)号：US5006371A

    公开(公告)日：1991-04-09

    申请号：US490184

    申请日：1990-03-08

    申请人： Diwakar Garg ,  Ernest L. Wrecsics ,  Leslie E. Schaffer ,  Carl F. Mueller ,  Paul N. Dyer ,  Keith R. Fabregas

    发明人： Diwakar Garg ,  Ernest L. Wrecsics ,  Leslie E. Schaffer ,  Carl F. Mueller ,  Paul N. Dyer ,  Keith R. Fabregas

    IPC分类号： C23C16/14 ,  C23C16/30 ,  C23C28/00

    CPC分类号： C23C28/00 ,  C23C16/14 ,  C23C16/30

    摘要： An improved highly erosive and abrasive wear resistant multi-layered coating system on a substrate which provides protection against impact of large particles is disclosed comprising a plurality of composite layers. In each of the composite layers, the first layer closest to the substrate comprises tungsten of sufficient thickness to confer substantial erosion and abrasion wear resistance characteristics to the coating system and a second layer deposited on the first layer comprises a mixture of tungsten and tungsten carbide and the tungsten carbide comprises W.sub.2 C, W.sub.3 C, or a mixture of both. Because the resulting coating system has enhanced high cycle fatigue strength over the substrate, the coating system is especially useful on such structures as turbine blades and similar articles of manufacture where such chemical vapor depositing the first and second layers at a temperature in the range of about 300.degree. to about 550.degree. C. and then repeating the chemical vapor deposition steps to achieve the multi-layered coating system such that the overall thickness of the system is at least about 20 .mu.m.

    摘要翻译： 公开了一种改进的高侵蚀性和磨蚀性耐磨多层涂层系统，其在基板上提供防止大颗粒冲击的保护，其包括多个复合层。 在每个复合层中，最靠近基底的第一层包括足够厚度的钨，以赋予涂层体系显着的侵蚀和磨损耐磨特性，而沉积在第一层上的第二层包括钨和碳化钨的混合物，以及 碳化钨包括W2C，W3C或两者的混合物。 由于所得到的涂层体系在衬底上具有增强的高循环疲劳强度，因此涂层系统特别适用于诸如涡轮机叶片和类似制品的结构，其中这种化学气相沉积第一和第二层的温度范围为约 然后重复化学气相沉积步骤以实现多层涂层体系，使得系统的总体厚度至少为20微米。

    Supported fischer-tropsch catalyst and method of making the catalyst
    27.
    发明授权
    Supported fischer-tropsch catalyst and method of making the catalyst 失效
    支持的费 - 托催化剂和催化剂的制备方法

    公开(公告)号：US4681867A

    公开(公告)日：1987-07-21

    申请号：US862844

    申请日：1986-05-13

    申请人： Paul N. Dyer ,  Ronald Pierantozzi ,  Howard P. Withers

    发明人： Paul N. Dyer ,  Ronald Pierantozzi ,  Howard P. Withers

    IPC分类号： B01J23/46 ,  B01J23/74 ,  C07C1/06 ,  B01J21/06 ,  B01J21/08

    CPC分类号： B01J23/462 ,  B01J23/74 ,  C07C1/063 ,  C07C2521/04 ,  C07C2531/12 ,  C07C2531/20

    摘要： A Fischer-Tropsch catalyst and a method of making the catalyst for a Fischer-Tropsch process utilizing the catalyst by which synthesis gas, particularly carbon-monoxide rich synthesis gas, is selectively converted to higher hydrocarbons of relatively narrow carbon number range is disclosed. In general, the selective and notably stable catalyst, consist of an inert carrier first treated with a Group IV B metal compound (such as zirconium or titanium), preferably an alkoxide compound, and subsequently treated with an organic compound of a Fischer-Tropsch metal catalyst, such as cobalt, iron or ruthenium carbonyl. Reactions with air and water and calcination are specifically avoided in the catalyst preparation procedure.

    摘要翻译： 公开了一种费 - 托催化剂和利用催化剂制备用于费 - 托催化剂的催化剂的方法，通过该催化剂合成气，特别是一氧化碳浓度的合成气被选择性地转化为相对较窄的碳数范围的高级烃。 通常，选择性和显着稳定的催化剂由首先用ⅣB族金属化合物（例如锆或钛），优选醇盐化合物处理的惰性载体组成，随后用费 - 托金属的有机化合物 催化剂，如钴，铁或羰基钌。 在催化剂制备过程中特别避免了与空气和水的反应和煅烧。

    Coated carbonaceous articles and method for making same
    29.
    发明授权
    Coated carbonaceous articles and method for making same 失效
    涂覆碳质制品及其制造方法

    公开(公告)号：US5330838A

    公开(公告)日：1994-07-19

    申请号：US228346

    申请日：1988-07-29

    申请人： Paul N. Dyer ,  Vincent L. Magnotta ,  Robert E. Stevens

    发明人： Paul N. Dyer ,  Vincent L. Magnotta ,  Robert E. Stevens

    IPC分类号： C04B41/45 ,  C04B41/50 ,  C04B41/52 ,  C04B41/81 ,  C04B41/87 ,  C04B41/89 ,  B05D7/00

    CPC分类号： C04B41/009 ,  C04B41/455 ,  C04B41/5057 ,  C04B41/52 ,  C04B41/81 ,  C04B41/87 ,  C04B41/89 ,  Y10T428/24388 ,  Y10T428/249986 ,  Y10T428/30 ,  Y10T442/2557 ,  Y10T442/2984

    摘要： A method for producing a protective coating on the surface of a carbonaceous substrate is described. A substantially uniform coating of a liquid or solid precursor material is provided on the surface of the substrate. The precursor material is one which has boron-oxygen bonds and is substantially non-reactive with the substrate at a first relatively low temperature and is capable of reacting with the substrate at a second temperature which is substantially higher than the first temperature. The substrate is then raised to the second temperature to react the coating with the substrate to form a porous region of substantially uniform depth in the substrate surface. This region contains interconnecting interstices and boron carbide. The interconnecting interstices are then at least partially filled with a glass forming material such as boron, boron oxide, boron carbide, silicon, silicon alloy, silicon dioxide, silicon nitride, silicon oxynitride, germania, and mixtures thereof. A refractory coating may then be deposited on the filled layer. Also described is a coated article produced in accordance with the described method.

    摘要翻译： 描述了在碳质基材的表面上制备保护涂层的方法。 在基材的表面上提供液体或固体前体材料的基本上均匀的涂层。 前体材料是具有硼 - 氧键并且在第一相对低温下基本上不与基底反应的材料，并且能够在基本上高于第一温度的第二温度下与基底反应。 然后将衬底升高至第二温度以使涂层与衬底反应，以在衬底表面中形成基本均匀深度的多孔区域。 该区域包含互连间隙和碳化硼。 然后至少部分地用玻璃形成材料如硼，氧化硼，碳化硼，硅，硅合金，二氧化硅，氮化硅，氮氧化硅，氧化锗及其混合物填充互连间隙。 然后可将耐火涂层沉积在填充层上。 还描述了根据所述方法制备的涂层制品。