公开(公告)号：US07247393B2

公开(公告)日：2007-07-24

申请号：US11162839

申请日：2005-09-26

申请人： Brian Thomas Hazel ,  Ramgopal Darolia ,  Brett Allen Rohrer Boutwell ,  David John Wortman

发明人： Brian Thomas Hazel ,  Ramgopal Darolia ,  Brett Allen Rohrer Boutwell ,  David John Wortman

IPC分类号： B32B15/01 ,  B32B15/04 ,  B32B15/20 ,  F01D5/28

CPC分类号： C23C30/00 ,  Y10T428/12458 ,  Y10T428/12736 ,  Y10T428/1275 ,  Y10T428/12875 ,  Y10T428/12937 ,  Y10T428/12944

摘要： An intermetallic composition suitable for use as an environmentally-protective coating on surfaces of components used in hostile thermal environments, including the turbine, combustor and augmentor sections of a gas turbine engine. The coating contains the gamma-prime (Ni3Al) nickel aluminide intermetallic phase and either the beta (NiAl) nickel aluminide intermetallic phase or the gamma solid solution phase. The coating has an average aluminum content of 14 to 30 atomic percent and an average platinum-group metal content of at least 1 to less than 10 atomic percent, the balance of the coating being nickel, one or more of chromium, silicon, tantalum, and cobalt, optionally one or more of hafnium, yttrium, zirconium, lanthanum, and cerium, and incidental impurities.

摘要翻译： 适用于在敌对热环境中使用的组件的表面上用作环境保护涂层的金属间组合物，包括燃气涡轮发动机的涡轮机，燃烧器和增压器部分。 该涂层含有γ-prime（Ni 3 Al 3）铝铝化物金属间相和β（NiAl）镍铝化物金属间相或γ固溶体相。 该涂层的平均铝含量为14〜30原子％，平均铂族金属含量为1〜10原子％以下，镀层为镍，铬，硅，钽， 和钴，任选地一种或多种铪，钇，锆，镧和铈以及附带的杂质。

公开(公告)号：US20070141367A1

公开(公告)日：2007-06-21

申请号：US11306125

申请日：2005-12-16

申请人： Ramgopal Darolia ,  Brian Hazel

发明人： Ramgopal Darolia ,  Brian Hazel

IPC分类号： B32B15/04

CPC分类号： C23C28/321 ,  C23C28/3215 ,  C23C28/325 ,  C23C28/345 ,  C23C28/3455 ,  C23C30/00 ,  Y10T428/12951

摘要： A thermal barrier coating (TBC) for a component intended for use in a hostile environment, such as a component of a gas turbine engine. The TBC exhibits improved impact and erosion resistance as a result of being a composite material consisting essentially of particles of a ceramic reinforcement material dispersed in a ceramic matrix material. The ceramic reinforcement material has a yield strength greater than the ceramic matrix material at about 1100° C., and the particles of the ceramic reinforcement material have an average maximum dimension of greater than five micrometers.

摘要翻译： 用于在敌对环境中使用的组件的热障涂层（TBC），例如燃气涡轮发动机的部件。 作为基本上由分散在陶瓷基体材料中的陶瓷增强材料的颗粒组成的复合材料，TBC显示出改善的耐冲击性和耐腐蚀性。 陶瓷增强材料在约1100℃下的屈服强度大于陶瓷基体材料，并且陶瓷增强材料的颗粒的平均最大尺寸大于5微米。

公开(公告)号：US07087266B2

公开(公告)日：2006-08-08

申请号：US10710112

申请日：2004-06-18

申请人： Ramgopal Darolia ,  Boris A. Movchan ,  Yuriy E. Rudoy ,  Leonella M. Nerodenko ,  Irene Spitsberg ,  David John Wortman

发明人： Ramgopal Darolia ,  Boris A. Movchan ,  Yuriy E. Rudoy ,  Leonella M. Nerodenko ,  Irene Spitsberg ,  David John Wortman

IPC分类号： C23C16/32 ,  C23C16/40

CPC分类号： C23C28/3215 ,  C23C14/06 ,  C23C28/321 ,  C23C28/345 ,  C23C28/3455 ,  C23C30/00 ,  F01D5/288 ,  F05D2300/15 ,  Y10T428/249954 ,  Y10T428/249956 ,  Y10T428/249957 ,  Y10T428/249976 ,  Y10T428/24999

摘要： A thermal barrier coating, or TBC, and method for forming the TBC. The TBC is formed of a thermal-insulating material that contains yttria-stabilized zirconia (YSZ) alloyed with at least a third oxide. The TBC is formed to also contain elemental carbon, and may potentially contain carbides and/or a carbon-containing gas that forms from the thermal decomposition of carbon. The TBC is characterized by lower density and thermal conductivity, high temperature stability and improved mechanical properties. To exhibit the desired effect, the third oxide is more particularly one that increases the lattice strain energy of the TBC microstructure as a result of having an ion size that is sufficiently different than a zirconium ion.

摘要翻译： 热障涂层或TBC，以及形成TBC的方法。 TBC由含有与至少第三氧化物合金的氧化钇稳定的氧化锆（YSZ）的绝热材料形成。 TBC形成也含有元素碳，并且可能含有从碳的热分解形成的碳化物和/或含碳气体。 TBC具有较低的密度和导热性，高温稳定性和改善的机械性能。 为了表现出期望的效果，由于具有与锆离子充分不同的离子尺寸的结果，第三氧化物更特别地增加了TBC微结构的晶格应变能。

公开(公告)号：US20060093851A1

公开(公告)日：2006-05-04

申请号：US10904222

申请日：2004-10-29

申请人： Ramgopal Darolia ,  William Walston

发明人： Ramgopal Darolia ,  William Walston

IPC分类号： F03B3/12 ,  B32B15/01

CPC分类号： C23C28/321 ,  C23C28/325 ,  C23C28/345 ,  C23C28/3455 ,  C23C30/00 ,  F01D5/288 ,  F05D2230/90 ,  F05D2300/611 ,  Y02T50/671 ,  Y10T428/12611 ,  Y10T428/12618 ,  Y10T428/12875 ,  Y10T428/12931 ,  Y10T428/12937 ,  Y10T428/12944

摘要： An article for use in hostile thermal environments, such as a component of a gas turbine engine. The article includes a nickel-base superalloy substrate that is prone to formation of a deleterious secondary reaction zone (SRZ), and an overlay coating having a predominantly gamma prime-phase nickel aluminide (Ni3Al) composition suitable for use as an environmental coating, including a bond coat for a thermal barrier coating. The coating comprises a chromium-containing nickel aluminide intermetallic overlay coating of predominantly the gamma prime phase, in which aluminum is present in the coating in an amount approximately equal to the aluminum content of the superalloy substrate so as to inhibit diffusion of aluminum from the overlay coating into the superalloy substrate.

摘要翻译： 用于敌对热环境中的物品，例如燃气轮机的部件。 该制品包括易于形成有害的次级反应区（SRZ）的镍基超级合金基材和具有主要为γ原相镍铝化合物（Ni 3 Al 3 Al）组成的覆盖涂层 适合用作环境涂层，包括用于热障涂层的粘合涂层。 该涂层包括主要为γ'相的含铬镍铝金属间覆盖涂层，其中铝在涂层中的含量约等于超级合金基材的铝含量，从而抑制铝从覆盖层的扩散 涂覆到超合金基材中。

公开(公告)号：US06964818B1

公开(公告)日：2005-11-15

申请号：US10414685

申请日：2003-04-16

申请人： Ramgopal Darolia

发明人： Ramgopal Darolia

IPC分类号： B32B15/04 ,  C22C21/00 ,  F03B3/12

CPC分类号： C22C21/00 ,  C23C4/02 ,  C23C4/18 ,  C23C26/00 ,  C23C30/00 ,  F01D5/288 ,  F05D2230/31 ,  F05D2230/312 ,  F05D2230/313 ,  F05D2230/314 ,  F05D2300/605 ,  Y02T50/67 ,  Y02T50/672 ,  Y10T428/12458 ,  Y10T428/12611 ,  Y10T428/12736 ,  Y10T428/12764 ,  Y10T428/12931 ,  Y10T428/12937 ,  Y10T428/12944

摘要： A coated article includes formed of an alloy having a composition including nickel and aluminum, and a protective coating overlying and contacting the substrate. The protective coating is a mixture of a quasicrystalline metallic phase, and a non-quasicrystalline metallic phase comprising nickel and aluminum. The aluminum is present in an amount of from about 3 to about 35 percent by weight of the non-quasicrystalline metallic phase.

摘要翻译： 涂覆制品包括由具有镍和铝的组成的合金形成，以及覆盖和接触基底的保护涂层。 保护涂层是准晶体金属相和包括镍和铝的非准晶体金属相的混合物。 铝的存在量为非准晶体金属相的约3至约35重量％。

公开(公告)号：US20050238894A1

公开(公告)日：2005-10-27

申请号：US10830685

申请日：2004-04-22

申请人： Mark Gorman ,  Irene Spitsberg ,  Brett Boutwell ,  Ramgopal Darolia ,  Robert Bruce ,  Venkat Venkataramani

发明人： Mark Gorman ,  Irene Spitsberg ,  Brett Boutwell ,  Ramgopal Darolia ,  Robert Bruce ,  Venkat Venkataramani

IPC分类号： C04B35/486 ,  C23C4/10 ,  C23C14/08 ,  C23C28/00 ,  F01D5/28 ,  B32B15/04 ,  B32B9/00

CPC分类号： F01D5/288 ,  C04B35/486 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/9607 ,  C23C4/11 ,  C23C14/083 ,  C23C28/321 ,  C23C28/3215 ,  C23C28/3455 ,  F05D2230/313 ,  F05D2300/134 ,  F05D2300/21 ,  F05D2300/611

摘要： Ceramic compositions comprising a main ceramic component comprising from about 63 to about 99 mole % zirconia and from about 1 to about 37 mole % hafnia. These compositions further comprise at least about 4 mole % of a stabilizer metal oxide selected from the group consisting of yttria, calcia, ceria, scandia, magnesia, india, lanthana, gadolinia, neodymia, samaria, dysprosia, erbia, ytterbia, europia, praseodymia, and mixtures thereof. These ceramic compositions are useful in preparing thermal barrier coatings having reduced thermal conductivity for the substrate of articles that operate at, or are exposed to, high temperatures, as well as good producibility and impact/erosion resistance. Inclusion of hafnia also maintains the reduced conductivity of the thermal barrier coating after thermal exposure due to better sintering resistance.

摘要翻译： 包含主要陶瓷组分的陶瓷组合物，其包含约63至约99摩尔％的氧化锆和约1至约37摩尔％的铪。 这些组合物还包含至少约4摩尔％的选自氧化钇，氧化钙，二氧化铈，氧化钪，氧化镁，印度，氧化镧，氧化钆，钕，绢云母，恶臭，埃尔比亚，奥bia，欧罗巴，茜素 ，及其混合物。 这些陶瓷组合物可用于制备在高温下操作或暴露于高温下的制品的基材具有降低的导热性以及良好的可生产性和耐冲击/耐冲蚀性的热障涂层。 由于更好的耐烧结性，包括冰雹也保持热暴露后热障涂层的导电性降低。

公开(公告)号：US20050129869A1

公开(公告)日：2005-06-16

申请号：US10735369

申请日：2003-12-12

申请人： John Ackerman ,  Venkat Venkataramani ,  Irene Spitsberg ,  Brett Boutwell ,  Ramgopal Darolia

发明人： John Ackerman ,  Venkat Venkataramani ,  Irene Spitsberg ,  Brett Boutwell ,  Ramgopal Darolia

IPC分类号： C23C28/00 ,  F01D5/28 ,  C23C16/00 ,  B05D1/08

CPC分类号： C23C28/3215 ,  C23C28/321 ,  C23C28/325 ,  C23C28/345 ,  C23C28/3455

摘要： A protected article is prepared by providing the article, depositing a bond coat onto an exposed surface of the article, and producing a thermal barrier coating on an exposed surface of the bond coat. The step of producing the thermal barrier coating includes the steps of depositing a primary ceramic coating onto an exposed surface of the bond coat, and depositing a stabilization composition onto an exposed surface of the primary ceramic coating. The stabilization composition includes a first element selected from Group 2 or Group 3 of the periodic table, and a second element selected from Group 5 of the periodic table. The atomic ratio of the amount of the first element to the amount of the second element is at least 1:3, more preferably at least 1:1.

摘要翻译： 通过提供制品来制备受保护制品，将粘合涂层沉积在制品的暴露表面上，并在粘合涂层的暴露表面上产生热障涂层。 生产热障涂层的步骤包括以下步骤：将初级陶瓷涂层沉积在粘合涂层的暴露表面上，并将稳定化组合物沉积到初级陶瓷涂层的暴露表面上。 稳定化组合物包括选自元素周期表第2族或第3族的第一元素和选自元素周期表第5族的第二元素。 第一元素的量与第二元素的量的原子比为至少1:3，更优选至少1:1。

公开(公告)号：US20050112412A1

公开(公告)日：2005-05-26

申请号：US10707197

申请日：2003-11-26

申请人： Ramgopal Darolia ,  Irene Spitsberg ,  Brett Boutwell ,  Mark Gorman ,  Curtis Johnson ,  Venkat Venkataramani

发明人： Ramgopal Darolia ,  Irene Spitsberg ,  Brett Boutwell ,  Mark Gorman ,  Curtis Johnson ,  Venkat Venkataramani

IPC分类号： C23C14/08 ,  C23C28/00 ,  F01D5/28 ,  B32B15/04 ,  B32B9/00

CPC分类号： C23C28/3215 ,  C23C14/08 ,  C23C14/083 ,  C23C28/321 ,  C23C28/345 ,  C23C28/3455 ,  F01D5/288 ,  F05D2230/90 ,  F05D2300/611 ,  Y02T50/67 ,  Y02T50/671 ,  Y10T428/12611 ,  Y10T428/12618 ,  Y10T428/24355 ,  Y10T428/24413

摘要： A thermal barrier coating (TBC) for a component intended for use in a hostile thermal environment. The TBC has an interior region and an outer surface region on and contacting the interior region. Both regions are formed of a ceramic material, with the interior region having a lower thermal conductivity than zirconia partially stabilized by about seven weight percent yttria. The interior region constitutes more than half of the thickness of the TBC, and the outer surface region constitutes less than half of the thickness of the TBC. The TBC has a columnar microstructure whereby the interior region and the outer surface region comprise columns of their ceramic materials. The outer surface region is more erosion and impact resistant than the interior region at least in part as a result of the columns thereof being more closely spaced than the columns of the interior region.

摘要翻译： 用于在恶劣热环境中使用的组件的热障涂层（TBC）。 TBC具有内部区域和外部表面区域，并且与内部区域接触。 两个区域由陶瓷材料形成，其内部区域具有比部分稳定约7重量％氧化钇的氧化锆更低的热导率。 内部区域构成TBC厚度的一半以上，外表面区域构成TBC厚度的一半以下。 TBC具有柱状微结构，其中内部区域和外部表面区域包括其陶瓷材料的列。 由于其柱与内部区域的列更紧密地间隔，至少部分地，外表面区域比内部区域具有更多的侵蚀和抗冲击性。

公开(公告)号：US06869508B2

公开(公告)日：2005-03-22

申请号：US10063808

申请日：2002-05-15

申请人： Ramgopal Darolia ,  Reed Roeder Corderman ,  Joseph David Rigney ,  Richard Arthur Nardi, Jr. ,  Michael James Weimer

发明人： Ramgopal Darolia ,  Reed Roeder Corderman ,  Joseph David Rigney ,  Richard Arthur Nardi, Jr. ,  Michael James Weimer

IPC分类号： C23C14/16 ,  C23C14/24 ,  C23C14/30 ,  C23C14/34 ,  C23C16/00 ,  H05H1/24

CPC分类号： B82Y10/00 ,  C23C14/16 ,  C23C14/246 ,  C23C14/30

摘要： A PVD process and apparatus (120) for depositing a coating (132) from multiple sources (110, 111) of different materials. The process and apparatus (120) are particulaity intended to deposit a beta-nickel aluminide coating (132) containing one or more elements whose vapor pressures are lower than NiAl. The PVD process and apparatus (120) entail feeding at least two materials (110, 111) into a coating chamber (122) and evaporating the materials (110, 111) at different rates from separate molten pools (114, 115) thereof. Articles (130) to be coated are suspended within the coating chamber (122), and transported with a support apparatus (118) relative to the two molten pools (114, 115) so as to deposit a coating (132) with a controlled composition that is a mixture of the first and second materials (110, 111).

摘要翻译： 一种用于从不同材料的多个源（110,111）沉积涂层（132）的PVD工艺和设备（120）。 该方法和装置（120）特别用于沉积含有一种或多种蒸气压低于NiAl的元素的β-镍铝化物涂层（132）。 PVD工艺和设备（120）需要将至少两种材料（110,111）进料到涂覆室（122）中并且以与其分离的熔池（114,115）不同的速率蒸发材料（110,111）。 待涂覆的制品（130）悬浮在涂覆室（122）内，并相对于两个熔池（114,115）用支撑装置（118）运输，以便沉积具有受控组合物的涂层（132） 即第一和第二材料（110,111）的混合物。

公开(公告)号：US06720088B2

公开(公告)日：2004-04-13

申请号：US09683700

申请日：2002-02-05

申请人： Ji-Cheng Zhao ,  Melvin Robert Jackson ,  Richard John Grylls ,  Ramgopal Darolia

发明人： Ji-Cheng Zhao ,  Melvin Robert Jackson ,  Richard John Grylls ,  Ramgopal Darolia

IPC分类号： B32B1500

CPC分类号： C22C5/04 ,  B32B15/01 ,  C22C30/00 ,  C23C10/30 ,  C23C26/00 ,  C23C28/321 ,  C23C28/3215 ,  C23C28/325 ,  C23C28/3455 ,  Y02T50/67 ,  Y10S428/926 ,  Y10S428/937 ,  Y10S428/938 ,  Y10S428/941 ,  Y10T428/12493 ,  Y10T428/12535 ,  Y10T428/12542 ,  Y10T428/12576 ,  Y10T428/12611 ,  Y10T428/12806 ,  Y10T428/12861 ,  Y10T428/12875 ,  Y10T428/12931 ,  Y10T428/12944 ,  Y10T428/12986

摘要： A group of alloys suitable for use in a high-temperature, oxidative environment, a protective coating system comprising a diffusion barrier that comprises an alloy selected from the group, an article comprising the diffusion barrier layer, and a method for protecting an article from a high-temperature oxidative environment comprising disposing the diffusion barrier layer onto a substrate are presented.

摘要翻译： 适合用于高温氧化环境的一组合金，包含扩散阻挡层的保护涂层系统，该扩散阻挡层包括选自该组的合金，包含该扩散阻挡层的制品，以及一种用于将物品从 提出了包括将扩散阻挡层设置在基底上的高温氧化环境。