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14 条记录 (耗时 0.014 秒)

    Preparation of low-sulfur platinum and platinum aluminide layers in thermal barrier coatings
    2.
    发明授权
    Preparation of low-sulfur platinum and platinum aluminide layers in thermal barrier coatings 失效
    在热障涂层中制备低硫铂和铂铝化物层

    公开(公告)号：US06551423B1

    公开(公告)日：2003-04-22

    申请号：US09149018

    申请日：1998-09-08

    申请人： Irene T. Spitsberg ,  William S. Walston ,  Jon C. Schaeffer

    发明人： Irene T. Spitsberg ,  William S. Walston ,  Jon C. Schaeffer

    IPC分类号： C25D510

    CPC分类号： C23C28/321 ,  C23C26/00 ,  C23C28/325 ,  C23C28/345 ,  C23C28/3455 ,  Y02T50/67

    摘要： A method for preparing a coated nickel-base superalloy article reduces the sulfur content of the surface region of the metallic coating layers to low levels, thereby improving the adhesion of the coating layers to the article. The method includes depositing a first layer of platinum overlying the surface of a substrate, depositing a second layer of aluminum over the platinum, and final desulfurizing the article by heating the article to elevated temperature, preferably in hydrogen, and removing a small amount of material from the surface that was exposed during the step of heating. A ceramic layer may be deposited over the desulfurized article. The article may also be similarly desulfurized at other points in the fabrication procedure.

    摘要翻译： 制备涂覆的镍基超级合金制品的方法将金属涂层的表面区域的硫含量降低到低水平，从而改善涂层对制品的粘附性。 该方法包括沉积覆盖衬底表面的铂的第一层，在铂上沉积第二层铝，并通过将制品加热至升高的温度，优选在氢气中，并最终除去少量的材料，使制品最终脱硫 从在加热步骤期间暴露的表面。 陶瓷层可以沉积在脱硫制品上。 该制品也可以在制造过程中的其它点类似地脱硫。

    Method of forming an improved aluminide bond coat for a thermal barrier coating system
    3.
    发明授权
    Method of forming an improved aluminide bond coat for a thermal barrier coating system 失效
    形成用于热障涂层系统的改进的铝化物粘结涂层的方法

    公开(公告)号：US06482469B1

    公开(公告)日：2002-11-19

    申请号：US09546518

    申请日：2000-04-11

    申请人： Irene T. Spitsberg ,  Ramgopal Darolia

    发明人： Irene T. Spitsberg ,  Ramgopal Darolia

    IPC分类号： C23C1606

    CPC分类号： C23C14/588 ,  C23C4/02 ,  C23C10/60 ,  C23C14/025 ,  C23C14/028 ,  C23C14/083 ,  C23C28/00

    摘要： A thermal barrier coating (TBC) system and method for improving the thermal fatigue life of a thermal barrier coating. The invention entails modifying the surface morphology of an aluminide bond coat that adheres the thermal barrier coating to a substrate of a superalloy component. The aluminide bond coat has columnar grains, such that grain boundaries are exposed at the surface of the bond coat and define ridges. The surface of the bond coat is then treated so that a sufficient amount of material is removed from the grain boundary ridges and other surface peaks to flatten the bond coat surface, i.e., the ridges and peaks are replaced with flattened surfaces that are nearly parallel to the diffusion zone of the bond coat. By removing these surface irregularities, it is believed that a more stable bond coat surface is created where the critical alumina-bond coat interface will exist following a thermal treatment, such as TBC deposition.

    摘要翻译： 一种用于改善热障涂层的热疲劳寿命的隔热涂层（TBC）系统和方法。 本发明需要改变将热障涂层粘附到超级合金部件的基底上的铝化物粘结涂层的表面形态。 铝化物接合涂层具有柱状晶粒，使得晶界在接合涂层的表面暴露并限定脊。 然后处理粘合涂层的表面，使得从晶界脊和其他表面峰除去足够量的材料以使粘合涂层表面平坦化，即，脊和峰被替换为几乎平行于 粘结涂层的扩散区。 通过去除这些表面不规则性，据信在热处理如TBC沉积之后，将产生更稳定的粘合涂层表面，其中临界氧化铝粘合涂层界面将存在。

    Method for thermally spraying crack-free mullite coatings on ceramic-based substrates
    5.
    发明授权
    Method for thermally spraying crack-free mullite coatings on ceramic-based substrates 失效
    在陶瓷基底上热喷涂无裂纹莫来石涂层的方法

    公开(公告)号：US6129954A

    公开(公告)日：2000-10-10

    申请号：US219151

    申请日：1998-12-22

    申请人： Irene T. Spitsberg ,  Hongyu Wang ,  Raymond W. Heidorn

    发明人： Irene T. Spitsberg ,  Hongyu Wang ,  Raymond W. Heidorn

    IPC分类号： C23C4/10

    CPC分类号： C04B41/87 ,  C04B41/009 ,  C04B41/5037 ,  C23C4/11

    摘要： A process for depositing a mullite coating on a silicon-based material, such as those used to form articles exposed to high temperatures and including the hostile thermal environment of a gas turbine engine. The process is generally to thermally spray a mullite powder to form a mullite layer on a substrate, in which the thermal spraying process is performed so that the mullite powder absorbs a sufficient low level of energy from the thermal source to prevent evaporation of silica from the mullite powder. Processing includes deposition parameter adjustments or annealing to maintain or reestablish phase equilibrium in the mullite layer, so that through-thickness cracks in the mullite layer are avoided.

    摘要翻译： 用于在硅基材料上沉积莫来石涂层的方法，例如用于形成暴露于高温并且包括燃气涡轮发动机的恶劣热环境的制品的那些。 该方法通常是将莫来石粉末热喷涂以在基材上形成莫来石层，其中进行热喷涂工艺，使得莫来石粉末从热源吸收足够的低水平的能量以防止二氧化硅从 莫来石粉。 处理包括沉积参数调整或退火以维持或重新建立莫来石层中的相平衡，从而避免莫来石层中的贯穿厚度的裂纹。

    Thermal/environmental barrier coating system for silicon-based materials
    6.
    发明授权
    Thermal/environmental barrier coating system for silicon-based materials 失效
    硅基材料的热/环境屏障涂层系统

    公开(公告)号：US5985470A

    公开(公告)日：1999-11-16

    申请号：US39477

    申请日：1998-03-16

    申请人： Irene T. Spitsberg ,  Hongyu Wang

    发明人： Irene T. Spitsberg ,  Hongyu Wang

    IPC分类号： C23C14/02 ,  C23C28/04 ,  B32B17/06

    CPC分类号： C04B41/89 ,  C04B41/009 ,  C04B41/52 ,  C23C14/024 ,  C23C28/04 ,  C23C28/042

    摘要： A coating system for a substrate containing a silicon-based material, such as silicon carbide-containing ceramic matrix materials containing silicon carbide and used to form articles exposed to high temperatures, including the hostile thermal environment of a gas turbine engine. The coating system includes a layer of barium strontium aluminosilicate (BSAS) as a bond coat for a thermal-insulating top coat. As a bond coat, the BSAS layer serves to adhere the top coat to a SiC-containing substrate. The BSAS bond coat exhibits sufficient environmental resistance such that, if the top coat should spall, the BSAS bond coat continues to provide a level of environmental protection to the underlying SiC-containing substrate.

    摘要翻译： 一种用于包含硅基材料的基底的涂层系统，例如含有碳化硅的含碳化硅的陶瓷基体材料，用于形成暴露于高温的制品，包括燃气涡轮发动机的恶劣热环境。 涂层系统包括作为绝热顶涂层的粘合涂层的硅酸钡锶钡（BSAS）层。 作为粘合涂层，BSAS层用于将顶涂层粘附到含SiC基材上。 BSAS粘合涂层表现出足够的耐环境性，使得如果顶涂层应该剥落，BSAS粘合涂层继续为下面的含SiC基材提供一定程度的环境保护。

    Coating system utilizing an oxide diffusion barrier for improved performance and repair capability
    7.
    发明授权
    Coating system utilizing an oxide diffusion barrier for improved performance and repair capability 有权
    涂层系统利用氧化物扩散阻挡层提高性能和修复能力

    公开(公告)号：US06455167B1

    公开(公告)日：2002-09-24

    申请号：US09345002

    申请日：1999-07-02

    申请人： Joseph D. Rigney ,  Irene T. Spitsberg ,  Ramgopal Darolia

    发明人： Joseph D. Rigney ,  Irene T. Spitsberg ,  Ramgopal Darolia

    IPC分类号： B32B1500

    CPC分类号： C23C28/00

    摘要： A coating is described for use on a superalloy substrate comprising a diffusion barrier as an intermediate layer overlying the substrate and underlying a protective coating having a high aluminum content. The diffusion barrier layer is characterized by having low interdiffusivity for elements from the substrate and the coating, a minimal impact on the mechanical properties of the article which is coated, and can be achieved readily using existing coating application techniques or post heat treat processes. The diffusion barrier layer is preferably an oxide ceramic.

    摘要翻译： 描述了一种用于超级合金基底的涂层，其包括扩散阻挡层作为覆盖在基底上的中间层，并且具有高铝含量的保护涂层。 扩散阻挡层的特征在于对于来自基底和涂层的元件的相互扩散性低，对被涂覆的制品的机械性能的影响最小，并且可以容易地使用现有的涂布应用技术或后热处理工艺来实现。 扩散阻挡层优选为氧化物陶瓷。

    Preparation of a nickle-based superalloy article containing a reactive element and having a decarburized surface and coating
    8.
    发明授权
    Preparation of a nickle-based superalloy article containing a reactive element and having a decarburized surface and coating 有权
    制备含有反应性元素并具有脱碳表面和涂层的镍基超级合金制品

    公开(公告)号：US06444053B1

    公开(公告)日：2002-09-03

    申请号：US09513869

    申请日：2000-02-28

    申请人： Irene T. Spitsberg ,  Joseph D. Rigney ,  Jeffrey A. Pfaendtner

    发明人： Irene T. Spitsberg ,  Joseph D. Rigney ,  Jeffrey A. Pfaendtner

    IPC分类号： C23C820

    CPC分类号： C23C10/02 ,  Y02T50/67

    摘要： A nickel-base superalloy article substrate has more nickel than any other element, a reactive element that is hafnium, zirconium, yttrium, lanthanum, or cerium, or combinations thereof, and a nominal bulk composition of carbon. A protective layer is deposited overlying the surface of the article substrate. The depositing of the protective layer includes steps of decarburizing locations where the carbon serves as a barrier to the diffusion of the reactive element from the substrate into the protective layer, and depositing an aluminum-containing protective layer overlying the substrate. The decreasing of the carbon concentration may be accomplished by decarburizing the substrate, depositing a platinum-containing layer and then decarburizing, depositing an aluminum-containing layer in a reducing atmosphere, or decarburizing the deposited protective layer. A ceramic thermal barrier coating may be deposited overlying the protective layer.

    摘要翻译： 镍基超级合金制品基材具有比任何其它元素，铪，锆，钇，镧或铈的反应性元素或其组合以及标称的碳组成的更多的镍。 保护层沉积在物品基底的表面上。 保护层的沉积包括脱碳位置的步骤，其中碳作为阻挡反应元件从衬底扩散到保护层中的屏障，以及沉积覆盖衬底的含铝保护层。 碳浓度的降低可以通过对基板进行脱碳，沉积含铂层然后脱碳，在还原气氛中沉积含铝层或对沉积的保护层进行脱碳来实现。 陶瓷热障涂层可以沉积在覆盖保护层上。

    Preparation of a nickel-base superalloy article having a decarburized coating containing aluminum and a reactive element
    10.
    发明授权
    Preparation of a nickel-base superalloy article having a decarburized coating containing aluminum and a reactive element 失效
    制备具有包含铝和反应性元素的脱碳涂层的镍基超级合金制品

    公开(公告)号：US06383306B1

    公开(公告)日：2002-05-07

    申请号：US09513871

    申请日：2000-02-28

    申请人： Irene T. Spitsberg ,  Jeffrey A. Pfaendtner ,  Joseph D. Rigney

    发明人： Irene T. Spitsberg ,  Jeffrey A. Pfaendtner ,  Joseph D. Rigney

    IPC分类号： C23C2802

    CPC分类号： C23C28/00 ,  Y02T50/67

    摘要： A nickel-base superalloy article substrate has more nickel than any other element and a nominal bulk composition of carbon. A protective layer is deposited overlying the surface of the article substrate. The protective layer includes aluminum and one or more of the reactive elements hafnium, zirconium, yttrium, lanthanum, and cerium. The depositing of the protective layer includes steps of decarburizing locations where the carbon may serve as a barrier to the mobility of the reactive elements within the protective layer, and depositing an aluminum-containing protective layer overlying the substrate. The decreasing of the carbon concentration may be accomplished. by decarburizing the substrate, depositing a platinum-containing layer and then decarburizing, depositing an aluminum-containing layer in a reducing atmosphere, and/or decarburizing the deposited protective layer. A ceramic thermal barrier coating may be deposited overlying the protective layer.

    摘要翻译： 镍基超合金制品基材具有比任何其它元素更多的镍和标称的碳组成。 保护层沉积在物品基底的表面上。 保护层包括铝和一种或多种反应元素铪，锆，钇，镧和铈。 保护层的沉积包括脱碳位置的步骤，其中碳可以用作阻挡保护层内的反应元件的迁移率，以及沉积覆盖在基底上的含铝保护层。 可以实现碳浓度的降低。 通过使基板脱碳，沉积含铂层然后脱碳，在还原气氛中沉积含铝层和/或使沉积的保护层脱碳。 陶瓷热障涂层可以沉积在覆盖保护层上。