Thermal barrier coatings with protective outer layer for improved impact and erosion resistance
    11.
    发明授权
    Thermal barrier coatings with protective outer layer for improved impact and erosion resistance 失效
    具有保护外层的热障涂层,以改善冲击和耐冲蚀性

    公开(公告)号:US06875529B1

    公开(公告)日:2005-04-05

    申请号:US10748521

    申请日:2003-12-30

    摘要: A reduced thermal conductivity thermal barrier coating having improved impact and erosion resistance for an underlying metal substrate of articles that operate at, or are exposed to, high temperatures. This coating comprises an inner layer nearest to the underlying metal substrate comprising a ceramic thermal barrier coating material, as well as a protective outer layer adjacent to and overlaying the inner layer and having an exposed surface. The outer layer has a thickness up to about 5 mils (127 microns) sufficient to impart impact and erosion resistance to the thermal barrier coating, and comprises a zirconia-containing ceramic composition having a c/a ratio of the zirconia lattice in the range of from about 1.011 to about 1.016 and stabilized in the tetragonal phase by a stabilizing amount of a stabilizing metal oxide selected from the group consisting of yttria, calcia, ceria, scandia, magnesia, india, ytterbia and mixtures thereof. This coating can be used to provide a thermally protected article having a metal substrate and optionally a bond coated layer adjacent to and overlaying the metal substrate. The thermal barrier coating can be prepared by forming the inner layer comprising the ceramic thermal barrier coating material, followed by forming on the inner layer the protective outer layer.

    摘要翻译: 对于在高温下操作或暴露于高温的制品的底层金属基底,具有改善的耐冲击性和耐侵蚀性的降低的热导率热障涂层。 该涂层包括最靠近下面的金属基底的内层,其包含陶瓷热障涂层材料,以及与内层相邻并覆盖内层并具有暴露表面的保护外层。 外层具有足以赋予热障涂层抗冲击和耐腐蚀性的至多约5密耳(127微米)的厚度,并且包含含氧化锆的陶瓷组合物,其中氧化锆晶格的ac / a比范围为 约1.011至约1.016,并通过稳定量的选自氧化钇,氧化钙,二氧化铈,钪,氧化镁,印度,镱的稳定金属氧化物及其混合物在四方相中稳定化。 该涂层可用于提供具有金属基底和任选的与金属基底相邻并覆盖金属基底的粘结涂层的热保护制品。 可以通过形成包含陶瓷热障涂层材料的内层,然后在内层上形成保护外层来制备热障涂层。

    Article protected by a thermal barrier coating system and its fabrication
    12.
    发明授权
    Article protected by a thermal barrier coating system and its fabrication 失效
    文章由热障涂层系统及其制造保护

    公开(公告)号:US06706325B2

    公开(公告)日:2004-03-16

    申请号:US09944909

    申请日:2001-08-31

    IPC分类号: C23C1408

    摘要: An article protected by a thermal barrier coating system is fabricated by providing an article substrate having a substrate surface, thereafter depositing a bond coat on the substrate surface, the bond coat having a bond coat surface, and thereafter processing the bond coat to flatten the bond coat surface. A thermal barrier coating is deposited overlying the bond coat surface. The thermal barrier coating is yttria-stabilized zirconia having a yttria content of from about 3 percent by weight to about 5 percent by weight of the yttria-stabilized zirconia.

    摘要翻译: 通过提供具有基材表面的制品基材,然后在基材表面上沉积粘合涂层,粘合涂层具有粘合涂层表面,然后加工粘合涂层使粘合剂平坦化,制造由热障涂层系统保护的物品 外套表面。 覆盖在粘结涂层表面上的热障涂层被沉积。 热障涂层是氧化钇稳定的氧化锆,其氧化钇含量为氧化钇稳定的氧化锆的约3重量%至约5重量%。

    Electron beam physical vapor deposition apparatus and crucible therefor
    13.
    发明授权
    Electron beam physical vapor deposition apparatus and crucible therefor 有权
    电子束物理气相沉积设备及其坩埚

    公开(公告)号:US06589351B1

    公开(公告)日:2003-07-08

    申请号:US09624808

    申请日:2000-07-24

    IPC分类号: C23C1600

    摘要: An electron beam physical vapor deposition (EBPVD) apparatus and a method for using the apparatus to produce a coating material (e.g., a ceramic thermal barrier coating) on an article. The EBPVD apparatus generally includes a coating chamber that is operable at elevated temperatures and subatmospheric pressures. An electron beam gun projects an electron beam into the coating chamber and onto a coating material within the chamber, causing the coating material to melt and evaporate. An article is supported within the coating chamber so that vapors of the coating material deposit on the article. The operation of the EBPVD apparatus is enhanced by the inclusion of a crucible that supports the coating material and is configured to be efficiently cooled so as to reduce the rate at which the process temperature increases within the coating chamber.

    摘要翻译: 电子束物理气相沉积(EBPVD)装置和使用该装置在制品上制备涂层材料(例如,陶瓷热障涂层)的方法。 EBPVD设备通常包括可在升高的温度和低于大气压的压力下操作的涂覆室。 电子束枪将电子束投射到涂层室中并且涂覆在腔室内的涂层材料上,导致涂层材料熔化和蒸发。 在涂层室内支撑制品,使得涂层材料的蒸气沉积在制品上。 通过包括支撑涂层材料的坩埚来增强EBPVD装置的操作,并且被配置为被有效地冷却,以便降低涂覆室内工艺温度升高的速度。

    Bronze Bushing and Wear Surface
    14.
    发明申请
    Bronze Bushing and Wear Surface 有权
    青铜衬套和磨损表面

    公开(公告)号:US20130219656A1

    公开(公告)日:2013-08-29

    申请号:US13407286

    申请日:2012-02-28

    IPC分类号: F16C33/24

    摘要: A bushing includes a bronze backing layer having a first axial end, a second axial end, and a central opening, the bushing having a cylindrical shape and a porous bronze layer. PTFE or other suitable low friction material is impregnated into the porous bronze layer at one of a radially inner or outer surface of the bushing. A PTFE or other suitable low friction material topical layer is disposed adjacent the impregnated layer. The bushing may optionally comprise a flange which also includes the bronze backing layer, the porous bronze and impregnated layer, and the topical layer on an axially inner or outer surface.

    摘要翻译: 衬套包括具有第一轴向端,第二轴向端和中心开口的青铜背衬层,衬套具有圆柱形形状和多孔青铜层。 PTFE或其它合适的低摩擦材料在衬套的径向内部或外表面中的一个处浸渍到多孔青铜层中。 邻近浸渍层设置PTFE或其它合适的低摩擦材料局部层。 衬套可以可选地包括凸缘,该凸缘还包括青铜背衬层,多孔青铜和浸渍层,以及在轴向内表面或外表面上的局部层。

    Airfoil having improved impact and erosion resistance and method for preparing same
    16.
    发明授权
    Airfoil having improved impact and erosion resistance and method for preparing same 失效
    具有改进的耐冲击和耐腐蚀性的翼型及其制备方法

    公开(公告)号:US07581933B2

    公开(公告)日:2009-09-01

    申请号:US11656974

    申请日:2007-01-24

    IPC分类号: F01D5/14 F01D5/28

    摘要: A turbine airfoil having an improved impact and erosion resistance. The airfoil comprises: (a) a base segment having an impact resistant leading edge section proximate to the leading edge comprising a material having having a yield strength of least about 250 ksi and an elongation percentage of about 12% or less; and (b) an erosion resistant coating overlaying the base segment at least in the leading and trailing edge portions of the pressure side, the erosion resistant coating comprising at least one ceramic layer having at least one of the following properties: (1) an erosion value of at least about 200 g. of erodent to cause a thickness loss of about 15-20 microns; (2) an erosion volume loss value (V) of about 1.9 or less as defined by the equation V=H−0.18×E0.75×F−1.65 where H is hardness, E is elastic modulus and F is fracture toughness; and (3) an F value of at least about 1.5 MPa*m1/2. The erosion resistant coating can comprise alternating ceramic and metallic layers and is typically formed by a method involving the step of forming on the pressure side of the base segment of the airfoil in alternating fashion at least one ceramic layer and at least one metallic layer.

    摘要翻译: 具有改善的冲击和耐冲蚀性的涡轮机翼型。 翼型件包括:(a)具有靠近前缘的抗冲击前缘部分的基部段,包括具有至少约250ksi的屈服强度和约12%或更小的伸长率的材料; 至少在所述压力侧的前缘部和后缘部分覆盖所述基部段的抗侵蚀涂层,所述耐侵蚀涂层包括至少一个具有以下特性中的至少一个的陶瓷层:(1)侵蚀 值至少约为200g。 的腐蚀导致约15-20微米的厚度损失; (2)等式V = H-0.18xE0.75xF-1.65定义的侵蚀体积损失值(V)约为1.9或更小,其中H是硬度,E是弹性模量,F是断裂韧性; 和(3)至少约1.5MPa * m1 / 2的F值。 抗侵蚀涂层可以包括交替的陶瓷和金属层,并且通常通过以下方法形成,该方法包括以至少一个陶瓷层和至少一个金属层交替形成在翼型的基部段的压力侧上的步骤。

    High temperature rod end bearings
    17.
    发明授权
    High temperature rod end bearings 有权
    高温杆端轴承

    公开(公告)号:US07543992B2

    公开(公告)日:2009-06-09

    申请号:US11244343

    申请日:2005-10-05

    IPC分类号: F16C11/06 F16C25/06

    摘要: A rod end bearing comprising a body comprising a ring portion and a rod portion. The ring portion comprises a ring having an opening, the opening having a center axis. The rod portion comprises a first rod extending radially from the ring in a direction perpendicular to the center axis. The opening having a geometry sufficient to support a substantially spherical ball bearing, and permit rotation of the ball bearing inside the ring. The inner periphery of the ring is in contact with the ball bearing and includes a wear coating. An antifriction coating is disposed on a surface selected from the group consisting of a surface of the wear coating, a surface of the ball bearing and combinations thereof. The antifriction coating maintains a coefficient of friction between the wear coating and the ball bearing of up to about 0.95 in atmospheres substantially devoid of water vapor.

    摘要翻译: 一种杆端轴承,包括一个主体,它包括一个环形部分和一个杆部分。 环部分包括具有开口的环,该开口具有中心轴线。 杆部分包括从垂直于中心轴线的方向从环径向延伸的第一杆。 该开口具有足以支撑基本上球形的球轴承的几何形状,并允许滚珠轴承在环内旋转。 环的内周与滚珠轴承接触并包括耐磨涂层。 抗磨涂层设置在从由耐磨涂层的表面,滚珠轴承的表面及其组合组成的组中选择的表面上。 抗摩擦涂层在基本上没有水蒸汽的大气中保持耐磨涂层和滚珠轴承之间的摩擦系数高达约0.95。

    Titanium treatment to minimize fretting
    18.
    发明授权
    Titanium treatment to minimize fretting 失效
    钛处理,以尽量减少磨损

    公开(公告)号:US07506440B2

    公开(公告)日:2009-03-24

    申请号:US11247686

    申请日:2005-10-11

    摘要: A method for surface treating a titanium gas turbine engine component. The method includes providing a gas turbine engine component having a titanium-containing surface. The component is heated to a temperature sufficient to diffuse carbon into the titanium and below 1000° F. The surface is contacted with a carbon-containing gas to diffuse carbon into the surface to form carbides. Thereafter, the carbide-containing surface is coated with a lubricant comprising a binder and a friction modifier. The binder preferably including titanium oxide and the friction modifier preferably including tungsten disulfide. The coefficient of friction between the surface and another titanium-containing surface is less than about 0.6 in high altitude atmospheres.

    摘要翻译: 一种表面处理钛燃气涡轮发动机部件的方法。 该方法包括提供具有含钛表面的燃气涡轮发动机部件。 将组分加热到足以将碳扩散到钛中并低于1000°F的温度。表面与含碳气体接触以将碳扩散到表面中以形成碳化物。 此后,含有碳化物的表面涂覆有包含粘合剂和摩擦改进剂的润滑剂。 粘合剂优选包括氧化钛和摩擦改进剂,优选包括二硫化钨。 表面与另一含钛表面之间的摩擦系数在高海拔环境中小于约0.6。

    Variable stator vane assembly and bushing thereof
    19.
    发明授权
    Variable stator vane assembly and bushing thereof 有权
    可变定子叶片组件及其套管

    公开(公告)号:US07445427B2

    公开(公告)日:2008-11-04

    申请号:US11294150

    申请日:2005-12-05

    IPC分类号: F01D17/16

    摘要: A variable stator vane assembly and a bushing thereof. The bushing includes a metal bushing body and a wear-resistant coating. The assembly includes a rotatable trunnion and a first metal bushing. The trunnion is capable of being located in a through hole extending between outer and inner surfaces of a compressor casing of a gas turbine engine. The first metal bushing is capable of being located in the through hole proximate the outer surface to surround a first portion of the trunnion when the trunnion is located in the through hole. The first metal bushing and the first portion have wear-resistant coatings which are in mutual contact, apart from any intervening lubricant, when the trunnion and the first metal bushing are located in the through hole and the trunnion is rotating with respect to the first metal bushing.

    摘要翻译: 可变定子叶片组件及其衬套。 衬套包括金属衬套主体和耐磨涂层。 组件包括可旋转的耳轴和第一金属衬套。 耳轴能够位于在燃气涡轮发动机的压缩机壳体的外表面和内表面之间延伸的通孔中。 当耳轴位于通孔中时,第一金属衬套能够位于邻近外表面的通孔中以围绕耳轴的第一部分。 当耳轴和第一金属衬套位于通孔中并且耳轴相对于第一金属旋转时,第一金属衬套和第一部分具有与任何中间润滑剂相互接触的耐磨涂层 衬套。

    METHODS FOR PREPARING THERMAL BARRIER COATINGS WITH HIGH FRACTURE TOUGHNESS INNER LAYER FOR IMPROVED IMPACT RESISTANCE
    20.
    发明申请
    METHODS FOR PREPARING THERMAL BARRIER COATINGS WITH HIGH FRACTURE TOUGHNESS INNER LAYER FOR IMPROVED IMPACT RESISTANCE 审中-公开
    用于制备具有高断裂韧性内层的热障涂层的方法用于改善耐冲击性

    公开(公告)号:US20080187659A1

    公开(公告)日:2008-08-07

    申请号:US11774878

    申请日:2007-07-09

    IPC分类号: C23C16/40 B05D1/36

    摘要: Method for preparing reduced thermal conductivity thermal barrier coating having improved impact resistance for an underlying substrate for high temperature applications. An exemplary method includes depositing a first zirconia-containing ceramic composition having a c/a ratio of about 1.011 to about 1.016 and stabilized in the tetragonal phase by yttria, calcia, ceria, scandia, magnesia, india, lanthana, gadolinia, neodymia, samaria, dysprosia, erbia, ytterbia, europia, praseodymia, and mixtures thereof, and including about 0.3 to about 0.5% by weight lanthana, neodymia, gadolinia, and mixtures thereof The first material forms a high fracture toughness inner layer having a fraction of porosity of about 0.20 or less, and a thickness in the range of from about 0.5 to about 2 mils. The method includes depositing a ceramic material forming an outer thermal insulating layer overlying the inner layer and having a greater fraction of porosity than the inner layer.

    摘要翻译: 制备降低热导率热障涂层的方法,对于高温应用的底层基材具有改善的耐冲击性。 一种示例性方法包括沉积具有约1.011至约1.016的ac / a比的第一含氧化锆的陶瓷组合物,并通过氧化钇,氧化钙,二氧化铈,氧化钪,印度,氧化镧,氧化钆,氧化钕,钐, 恶臭,er虫,bia虫,欧罗巴,糠ia和它们的混合物,并且包括约0.3至约0.5%重量的镧,钕,氧化钆及其混合物。第一种材料形成具有大约孔隙率分数的高断裂韧性内层 0.20或更小,厚度范围为约0.5至2密耳。 该方法包括沉积形成覆盖内层的外部绝热层并且具有比内层更大的孔隙率的陶瓷材料。