Oxidation resistant carbon and method for making same
    3.
    发明授权
    Oxidation resistant carbon and method for making same 失效
    耐氧化碳及其制造方法

    公开(公告)号:US5286565A

    公开(公告)日:1994-02-15

    申请号:US131479

    申请日:1987-12-03

    摘要: A coated carbon body having improved resistance to high temperature oxidation and a method for producing the coated carbon body are described. The coated carbon body comprises a carbon body, an intermediate glass forming coating and an outer refractory coating on the intermediate coating. The body has a converted porous layer formed by etching and reacting the body with boron oxide and the resulting converted layer contains interconnecting interstices and boron carbide formed by the reaction of the boron oxide and the carbon body. The method comprises contacting a carbon body with boron oxide at an elevated temperature sufficient to cause the reaction between the carbon body and boron oxide to form a converted porous layer which contains interconnecting interstices in the body and boron carbide and then applying the glass forming coating over the converted layer. Preferably an outer refractory coating is applied over the glass forming coating. The glass forming coating comprises compounds selected from the group consisting of silicon nitride, silicon oxynitride and mixtures thereof. Additionally, both the refractory outer coating and the glass forming coating can contain compounds selected from the group consisting of silicon nitride, silicon oxynitride, and mixtures thereof.

    摘要翻译: 描述了具有改进的耐高温氧化性的涂覆碳体及其制备方法。 涂覆的碳体包括碳体,中间玻璃形成涂层和中间涂层上的外耐火涂层。 主体具有通过使体与氧化硼进行腐蚀和反应形成的转化多孔层,并且所得到的转化层含有通过氧化硼和碳体的反应形成的互连间隙和碳化硼。 该方法包括在足以引起碳体和氧化硼之间的反应的升高的温度下使碳体与氧化硼接触以形成转化的多孔层,其在体内和碳化硼中含有相互连接的间隙,然后将玻璃形成涂层 转换层。 优选地,在玻璃形成涂层上施加外部耐火涂层。 玻璃形成涂层包括选自氮化硅,氮氧化硅及其混合物的化合物。 此外,难熔外涂层和玻璃形成涂层都可以含有选自氮化硅,氮氧化硅及其混合物的化合物。

    Structral articles
    4.
    发明授权
    Structral articles 失效
    结构性文章

    公开(公告)号:US5260096A

    公开(公告)日:1993-11-09

    申请号:US62292

    申请日:1987-06-11

    摘要: A structural article for high temperature applications comprises a body formed of at least partially consolidated, particulate silicon nitride, a conformal outer coating of silicon nitride or silicon carbide on the body, and a conformal intermediate layer of a silicon, oxygen and nitrogen-containing compound, i.e. silicon oxynitride, chemically bonded to both the body and the outer coating. The method for making such an article comprises providing a body formed of at least partially consolidated, particulate silicon nitride, oxidizing the surface of the body, removing silicon dioxide from the oxidized surface of the body; and chemically vapor depositing a conformal outer coating of silicon nitride or silicon carbide. The conformal outer coating provides a protective envelope around and assists in high temperature isostatic pressing of the body and hence permits one to use the structural article in isostatic pressing processes.

    摘要翻译: 用于高温应用的结构制品包括由至少部分固结的微粒氮化硅,主体上的氮化硅或碳化硅的保形外涂层以及硅,氧和含氮化合物的保形中间层形成的本体 化学键合到主体和外涂层上,即氮氧化硅。 制造这种制品的方法包括提供由至少部分固结的颗粒状氮化硅形成的主体,氧化身体的表面,从身体的氧化表面去除二氧化硅; 并化学气相沉积氮化硅或碳化硅的保形外涂层。 保形外涂层围绕着一个保护套,并且有助于身体的高温等静压,从而允许人们在等压压制过程中使用结构制品。

    Composite stiff lightweight structure and method for making same
    5.
    发明授权
    Composite stiff lightweight structure and method for making same 失效
    复合刚性轻型结构及其制造方法

    公开(公告)号:US5076982A

    公开(公告)日:1991-12-31

    申请号:US103613

    申请日:1987-10-01

    摘要: A method for making a lightweight structure having a high stiffness to weight ratio comprising providing a substrate defining at least a pair of outer surfaces spaced from each other, boring at least one hole through the structure to provide at least one void passage extending through the substrate between the outer surfaces, coating the outer surfaces of the substrate and the surfaces of the passage with a chemical vapor deposited material to a thickness of about one millimeter, plugging the void passage with a plug of a substrate material, and further coating the coated outer surfaces of the substrate and the ends of the plugs with a chemical vapor deposited material to form a continuous monolithic structure thereon.

    摘要翻译: 一种用于制造具有高刚性重量比的轻质结构的方法,包括提供限定至少一对彼此间隔开的一对外表面的基底,镗孔穿过所述结构的至少一个孔,以提供延伸穿过所述基底的至少一个空隙通道 在外表面之间,用化学气相沉积材料将衬底的外表面和通道的表面涂覆至约1毫米的厚度,用空心通道用衬底材料的塞子堵塞,并进一步涂覆涂覆的外部 用化学气相沉积材料将基片的表面和塞的端部形成在其上的连续的整体结构。

    Composite stiff lightweight structure and method for making same
    6.
    发明授权
    Composite stiff lightweight structure and method for making same 失效
    复合刚性轻型结构及其制造方法

    公开(公告)号:US4716064A

    公开(公告)日:1987-12-29

    申请号:US793828

    申请日:1985-10-31

    摘要: A composite structure having a high stiffness to weight ratio includes a substrate, e.g. graphite, defining at least a pair of outer surfaces which are spaced from each other and having a volume or void passages extending through the substrate between the outer surfaces. At least one stiffening element extends between the outer surfaces within this volume. The stiffening element defines a volume and has at least one wall intersecting each of the outer surfaces. The stiffening element and the outer surfaces are made up of a chemically vapor deposited material having the desired high stiffness to weight ratio and being formed as a monolithic structure having a thickness of at least about 1 millimeter. These structures have such diverse uses as aircraft parts and skis.

    摘要翻译: 具有高刚度和重量比的复合结构包括基底,例如, 石墨,限定至少一对彼此间隔开的外表面,并具有在外表面之间延伸通过基底的体积或空隙通道。 至少一个加强元件在该体积内的外表面之间延伸。 加强元件限定体积并且具有与每个外表面相交的至少一个壁。 加强元件和外表面由化学气相沉积材料制成,具有所需的高刚度和重量比,并且形成为具有至少约1毫米厚度的整体结构。 这些结构具有诸如飞机部件和滑雪板的多种用途。

    Deposition of titanium aluminides
    7.
    发明授权
    Deposition of titanium aluminides 失效
    钛铝化物的沉积

    公开(公告)号:US4698244A

    公开(公告)日:1987-10-06

    申请号:US793616

    申请日:1985-10-31

    CPC分类号: C23C16/08 C23C16/4488

    摘要: The invention relates to an method of producing a titanium aluminide coating on a substrate by producing a flow of hydrogen and gaseous aluminum monochloride over a titanium surface to react to form a gaseous flow of titanium trichloride and aluminum monochloride and contacting the substrate with the flow of titanium trichloride and aluminum monochloride at a temperature of 800.degree. to 1200.degree. C., said substrate being a temperature below the temperature of the gases.

    摘要翻译: 本发明涉及一种通过在钛表面上产生氢气和一氯化铝气流以反应形成三氯化钛和一氯化铝的气流并使基板与 三氯化钛和一氯化铝,在800至1200℃的温度下,所述衬底的温度低于气体的温度。

    Tungsten alloys containing A15 structure and method for making same
    8.
    发明授权
    Tungsten alloys containing A15 structure and method for making same 失效
    含有A15结构的钨合金及其制造方法

    公开(公告)号:US4427445A

    公开(公告)日:1984-01-24

    申请号:US399201

    申请日:1982-07-21

    CPC分类号: C23C16/32

    摘要: A hard fine-grained internally stressed material of tungsten and carbon or tungsten, carbon and oxygen is described which is produced by thermochemical deposition. The material consists primarily of a two phase mixture of pure tungsten and an A15 structure, is free of columnar grain distribution, and has a hardness of greater than 1,200 VHN. The average grain size is less than 0.1 micron.

    摘要翻译: 描述了通过热化学沉积产生的钨和碳或钨,碳和氧的硬细颗粒内应力材料。 该材料主要由纯钨和A15结构的两相混合物组成,不含柱状晶粒分布,硬度大于1200HVN。 平均粒径小于0.1微米。

    Method for making self-protecting carbon bodies
    9.
    发明授权
    Method for making self-protecting carbon bodies 失效
    制造自保护碳体的方法

    公开(公告)号:US4591514A

    公开(公告)日:1986-05-27

    申请号:US701065

    申请日:1985-02-13

    申请人: Robert A. Holzl

    发明人: Robert A. Holzl

    摘要: A method of forming a coated article is described. The article is composed of a carbon body having a thermochemically deposited coating which renders the body resistant to oxidation at high temperatures. A volatile gaseous halide of silicon is partially reduced to form a lower halide in a first reaction zone having a first pressure and separated from the body. The lower halide is flowed into a second reaction zone maintained at a pressure lower than the pressure in the first reaction zone. A gaseous alloying agent is introduced into the second reaction zone. The agent includes one or more elements selected from the group consisting of carbon, oxygen, aluminum, and nitrogen. As a consequence, a liquid phase intermediate compound is deposited on the substrate body which is thereafter thermochemically reacted to produce a coating of the silicon alloy. The coating has a non-columnar grain distribution with substantially equiaxial grains of an average diameter of less than one micron and forms a correspondingly fine crack mosaic upon stressing due to differences in thermal coefficients of expansion between the coating and the body. The lower halide and the alloying agent are controlled so as to produce a coating wherein the amount of silicon is substantially in excess of stoichiometry.

    摘要翻译: 描述形成涂层制品的方法。 该制品由具有热化学沉积涂层的碳体组成,其使得机体耐高温氧化。 部分还原硅的挥发性气态卤化物,以在具有第一压力并与体分离的第一反应区中形成较低的卤化物。 较低的卤化物流入维持在低于第一反应区的压力的压力的第二反应区。 将气态合金剂引入第二反应区。 该试剂包括一种或多种选自碳,氧,铝和氮的元素。 因此,液相中间体化合物沉积在基板主体上,然后热化学反应以产生硅合金的涂层。 该涂层具有非圆柱形晶粒分布,其平均直径小于1微米的基本上等轴晶粒,并且由于涂层和体之间的热膨胀系数的差异而在应力时形成相应的细裂纹马赛克。 控制下卤化物和合金剂以产生其中硅的量基本上超过化学计量的涂层。

    Mass spectrometer filter
    10.
    发明授权
    Mass spectrometer filter 失效
    质谱过滤器

    公开(公告)号:US4079254A

    公开(公告)日:1978-03-14

    申请号:US768174

    申请日:1977-02-14

    IPC分类号: H01J49/42 B01D59/44 H01J39/34

    摘要: A process for producing mass filters for use in mass spectrometers. Several electrodes having precisely shaped surfaces must be held in precisely determined positions with respect to each other. Insulators are placed into position on the surface of a mandrel and a layer of metal is deposited over the mandrel and insulators to form a composite unitary structure, including the electrodes. The deposited metal overlying the insulators is then removed, electrically isolating the electrodes.

    摘要翻译: 生产用于质谱仪的质量过滤器的方法。 具有精确成形表面的几个电极必须相对于彼此保持在精确确定的位置。 将绝缘体放置在心轴表面上的适当位置,并且在心轴和绝缘体上沉积金属层以形成包括电极的复合单一结构。 然后去除覆盖绝缘体的沉积金属,电绝缘电极。