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1. 发明授权

US6054184A Method for forming a multilayer thermal barrier coating 失效
标题翻译：形成多层热障涂层的方法
公开(公告)号：US6054184A
公开(公告)日：2000-04-25
申请号：US902490
申请日：1997-07-29
申请人： Robert W. Bruce , Mark A. Rosenzweig , Jon C. Schaeffer , David J. Wortman , Norman R. Lindblad
发明人： Robert W. Bruce , Mark A. Rosenzweig , Jon C. Schaeffer , David J. Wortman , Norman R. Lindblad
IPC分类号： C23C14/08 , C23C14/30 , C23C14/50 , C23C14/56 , C23C16/00
CPC分类号： C23C14/083 , C23C14/081 , C23C14/30 , C23C14/505 , C23C14/568
摘要： A method and apparatus for forming a multilayer thermal barrier coating such that the coating is composed of substantially homogeneous layers of different ceramic materials. The method entails supporting an article within a coating apparatus and in proximity to ceramic ingots of the different ceramic materials, and then simultaneously directing electron beams at both ingots so as to maintain a portion of each ingot in a molten state. According to a particular aspect of this invention, vapors of both ceramic materials coexist within the coating apparatus, yet each ceramic material is sequentially deposited onto the article by sequentially interrupting exposure of surfaces of the article to the vapors, such that the vapors form homogeneous successive layers on the surface. Exposure of the article to one or more of the vapors can be interrupted with a baffle, such that the vapor of only one of the ceramic ingots is directly deposited on a given surface of the article at any instant. The baffle can be employed in conjunction with the article being rotated at a constant or variable speed, and/or being translated above the members within the vessel to alter the relative thicknesses of the ceramic and an intermediate layer that is formed between adjacent layers and is composed of a mixture of the ceramic materials.
摘要翻译：一种用于形成多层热障涂层的方法和装置，使得涂层由不同陶瓷材料的基本均匀的层组成。该方法需要在涂覆装置内并且靠近不同陶瓷材料的陶瓷锭支撑制品，然后同时引导两个锭子处的电子束，以便将每个锭的一部分保持在熔融状态。根据本发明的特定方面，两种陶瓷材料的蒸汽在涂覆设备中共存，但是每个陶瓷材料通过依次地将制品的表面暴露于蒸气而顺序地沉积到制品上，使得蒸气形成均匀的连续表面上的层。物品暴露于一个或多个蒸气可能会被挡板中断，使得只有一个陶瓷锭的蒸汽在任何时刻直接沉积在物品的给定表面上。挡板可以与制品以恒定或可变速度一起旋转和/或在容器内的构件上方平移以改变陶瓷和相邻层之间形成的中间层的相对厚度，并且是由陶瓷材料的混合物组成。

2. 发明授权

US06656605B1 Low-sulfur article coated with a platinum-group metal and a ceramic layer, and its preparation 失效
标题翻译：涂有铂族金属和陶瓷层的低硫制品及其制备方法
公开(公告)号：US06656605B1
公开(公告)日：2003-12-02
申请号：US08398259
申请日：1995-03-03
申请人： Jon C. Schaeffer , Mark A. Rosenzweig , Norman R. Lindblad , Wendy H. Murphy
发明人： Jon C. Schaeffer , Mark A. Rosenzweig , Norman R. Lindblad , Wendy H. Murphy
IPC分类号： B21D3900
CPC分类号： C23C14/02 , C23C14/083 , F01D5/288 , F05D2230/90 , Y02T50/67 , Y10T428/12535 , Y10T428/12875
摘要： A coated article is prepared by furnishing an article substrate having a free sulfur content of less than about 1 part per million. The low-sulfur article may be made of a material selected to have a low sulfur content, provided with a scavenging element that reacts with free sulfur to produce a sulfur compound, or desulfurized by contact with a reducing gas such as hydrogen. A platinum-group metal layer is deposited over the article substrate, and a ceramic coating is applied over the platinum-group metal layer.
摘要翻译：通过提供具有小于约1百万分之一的游离硫含量的制品基材来制备涂覆制品。低硫制品可以由选择为具有低硫含量的材料制成，提供有与游离硫反应产生硫化合物的清除元素，或者通过与诸如氢的还原气体接触脱硫。将铂族金属层沉积在制品基底上，并在铂族金属层上涂覆陶瓷涂层。

3. 发明授权

US06500283B1 Method of improving environmental resistance of investment cast superalloy articles 失效
标题翻译：投资超高合金制品的耐环境性改善方法
公开(公告)号：US06500283B1
公开(公告)日：2002-12-31
申请号：US08946017
申请日：1997-10-07
申请人： Jon C. Schaeffer , Wendy H. Murphy , Norman R. Lindblad
发明人： Jon C. Schaeffer , Wendy H. Murphy , Norman R. Lindblad
IPC分类号： C22F110
CPC分类号： B22C3/00 , B22C9/10 , C22F1/10
摘要： A method for promoting the environmental resistance of nickel, iron and cobalt-base superalloys of the type alloyed to develop a protective oxide scale. The method entails a technique for removing sulfur during or subsequent to the casting operation. The method generally includes casting a superalloy article in a mold cavity, and then heat treating the article while surfaces of the article are in contact with a compound containing a sulfide and/or oxysulfide-forming element, such as yttria, calcium oxide, magnesia, scandia, ceria, hafnia, zirconia, titania, lanthana, alumina and/or silica. The heat treatment is performed at a temperature sufficient to cause sulfur within the superalloy article to segregate to the surfaces of the article and react with the sulfide-forming element, thereby forming sulfides at the interface with the compound. The compound is then removed from the surfaces of the article so as to simultaneously remove the sulfides and any elemental sulfur that have segregated to the surface of the article.
摘要翻译：一种促进合金化的镍，铁和钴基超级合金的耐环境性的方法，以形成保护性氧化皮。该方法需要一种在铸造操作期间或之后除去硫的技术。该方法通常包括在模腔中铸造超合金制品，然后在制品的表面与含有硫化物和/或氧硫化物形成元素如氧化钇，氧化钙，氧化镁，猩猩，二氧化铈，铪，氧化锆，二氧化钛，镧，氧化铝和/或二氧化硅。热处理在足以使超合金制品内的硫分离到制品的表面并与硫化物形成元素反应的温度下进行，从而在与化合物的界面处形成硫化物。然后将化合物从制品的表面除去，以便同时除去分离到制品表面的硫化物和任何元素硫。

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