Evaporation method
    2.
    发明授权
    Evaporation method 失效
    蒸发法

    公开(公告)号:US5474809A

    公开(公告)日:1995-12-12

    申请号:US364152

    申请日:1994-12-27

    IPC分类号: C23C14/24 B05D3/06 C23C16/00

    CPC分类号: C23C14/24

    摘要: An evaporation method is described for the deposition of various materials that comprise a plurality of elements, such as metal alloys, ceramics and certain inorganic-metallic compounds. The method involves the evaporation of a material comprising a plurality of elements through a molten pool of another material. The material which is to be evaporated is placed in a suitable evaporation means under the material which is to be used to form the molten pool. By applying heat sufficient to melt both materials, the material to be evaporated is transported through the molten pool of the other material. The materials are selected so that the material to be evaporated is preferentially evaporated with respect to the other material. This method produces a vapor stream and condensates that have compositions which closely resemble the compositions of the material from which they were deposited. Further, the condensate may be collected using the method of this invention at high rates on the order of 0.50 mil/minute, or more.

    摘要翻译: 描述了用于沉积包含多种元素(例如金属合金,陶瓷和某些无机金属化合物)的各种材料的蒸发方法。 该方法包括通过另一种材料的熔池蒸发包含多个元件的材料。 待蒸发的材料放置在用于形成熔池的材料下面的合适的蒸发装置中。 通过施加足以熔化两种材料的热量,待蒸发的材料通过另一种材料的熔池输送。 选择材料使得待蒸发的材料相对于另一种材料优先蒸发。 该方法产生蒸汽流和冷凝物,其具有非常类似于它们沉积的材料组成的组成。 此外,可以使用本发明的方法以0.50密耳/分钟或更高的高速率收集冷凝物。

    Nematic liquid crystal mixtures with stable homeotropic boundary
conditions and methods of making the same
    3.
    发明授权
    Nematic liquid crystal mixtures with stable homeotropic boundary conditions and methods of making the same 失效
    具有稳定的垂直边界条件的向列型液晶混合物及其制备方法

    公开(公告)号:US3972589A

    公开(公告)日:1976-08-03

    申请号:US431117

    申请日:1974-01-07

    CPC分类号: C09K19/56 G02F1/133703

    摘要: Nematic liquid crystal mixtures characterized by a homeotropic boundary condition are prepared by the addition of soluble monopolar compounds to either positive or negative dielectric anisotropic nematic materials. Between approximately 0.5 and 5 percent by weight of compounds such as certain carboxylic acids, aliphatic amines and aliphatic nitriles, for example, when dissolved in a nematic material produce spontaneous homeotropic boundary conditions therein.

    摘要翻译: 通过向正或负介电各向异性向列相材料中加入可溶性单极化合物来制备特征在于垂直度边界条件的向列型液晶混合物。 化合物例如某些羧酸,脂肪族胺和脂肪族腈的约0.5〜5重量%,当溶解在向列型物质中时,会产生自发的垂面条件。

    Thermal barrier coating system
    6.
    发明授权
    Thermal barrier coating system 失效
    隔热涂层系统

    公开(公告)号:US5981088A

    公开(公告)日:1999-11-09

    申请号:US912823

    申请日:1997-08-18

    摘要: A thermal insulating ceramic layer for use in a thermal barrier coating system on a component designed for use in a hostile thermal environment, such as turbine, combustor and augmentor components of a gas turbine engine. The ceramic layer is formed of zirconia stabilized by yttria and characterized by a columnar grain structure in which a monoclinic phase is present. To attain the monoclinic phase, the ceramic layer contains less than six weight percent yttria, with about two to five weight percent yttria being preferred. The ceramic layer is preferably part of a thermal barrier coating system that includes a substrate and a bond coat adhering the ceramic layer to the substrate. To obtain the desired columnar grain structure, the ceramic layer is deposited by a PVD technique, preferably EBPVD.

    摘要翻译: 一种用于热障涂层系统的隔热陶瓷层,其设计用于恶劣热环境中的部件,例如燃气涡轮发动机的涡轮机,燃烧器和增压器部件。 陶瓷层由氧化钇稳定的氧化锆形成,其特征在于存在单斜晶相的柱状晶粒结构。 为了获得单斜相,陶瓷层含有少于6重量%的氧化钇,优选约2至5重量%的氧化钇。 陶瓷层优选为热障涂层系统的一部分,其包括将陶瓷层粘附到基底上的基底和粘合涂层。 为了获得所需的柱状晶粒结构,通过PVD技术,优选EBPVD沉积陶瓷层。

    Wear resistant cutting tools and shaping method
    8.
    发明授权
    Wear resistant cutting tools and shaping method 失效
    耐磨切削刀具及成型方法

    公开(公告)号:US5038645A

    公开(公告)日:1991-08-13

    申请号:US539951

    申请日:1990-06-18

    IPC分类号: B23B27/14 C23C14/48 C23C30/00

    摘要: Wear resistant cutting tools are comprised of cutting tools implanted with at least one element selected from the group consisting of, chlorine, fluorine, bromine, iodine, sulfur, indium, gallium and tin. The elements are implanted within the cutting tools in at least an effective amount to increase the wear resistance of the insert, up to an amount that does not substantially impair the hot hardness and toughness of the tool.In a method for lubricating the interface between a cutting tool and a workpiece in a lathe turning operation, at least one element selected from the group consisting of fluorine, bromine, iodine, sulfur, indium, gallium and tin are implanted in the tool. The elements are implanted so that the elements can lubricate the interface between the cutting edge and workpiece during turning without substantially impairing the hot hardness and toughness of the cutting tool. A workpiece is then shaped with the tool by metal removal, within a range of cutting speeds that cause the implanted element or elements to lubricate the interface.

    摘要翻译: 耐磨切削刀具由植入有选自氯,氟,溴,碘,硫,铟,镓和锡中的至少一种元素的切削刀具组成。 这些元件以至少有效的量植入切削刀具内,以增加刀片的耐磨性,直到不显着地损害刀具的热硬度和韧性。 在车床旋转操作中用于润滑切削工具和工件之间的界面的方法中,从工具中注入选自氟,溴,碘,硫,铟,镓和锡中的至少一种元素。 这些元件被植入,使得元件可以在转动期间润滑切削刃和工件之间的界面而基本上不损害切削工具的热硬度和韧性。 然后,在切割速度范围内通过金属去除,通过工具对工件进行成形,从而使植入的元件润滑界面。