公开(公告)号：US20150354392A1

公开(公告)日：2015-12-10

申请号：US14300520

申请日：2014-06-10

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Don Mark LIPKIN ,  Luc Stephane LEBLANC

IPC: F01D11/12

CPC classification number: F01D11/122 ,  F01D11/125 ,  F05D2230/90 ,  F05D2300/514

Abstract: Turbine shroud abradable coatings that balance the apparently contradictory requirements of high flowpath solidity, low blade tip wear, and good durability in service. The shrouds include a shroud substrate, a coating system, and an abradable coating. The coating system overlies at least a portion of an outer surface of the shroud substrate. The coating system includes a bond coat, a thermal barrier coating (TBC), and/or an environmental barrier coating (EBC). The abradable coating overlies at least a portion of the barrier coating. The abradable coating defines a substantially smooth continuous flowpath surface. The abradable coating includes a hybrid microstructure including a relatively dense, high-durability phase corralling relatively porous abradable phases. The second phases are relatively more abradable by the blades of a turbine than the second regions.

Abstract translation: 涡轮罩可磨损涂层，平衡了高流动路径坚固性，低叶尖磨损和良好的耐用性在服务中的明显矛盾的要求。 护罩包括护罩衬底，涂层系统和可磨损涂层。 涂层系统覆盖护罩衬底的外表面的至少一部分。 涂层系统包括粘合涂层，热障涂层（TBC）和/或环境屏障涂层（EBC）。 耐磨涂层覆盖至少一部分阻挡涂层。 可磨损涂层限定了基本平滑的连续流路表面。 可磨损涂层包括混合微观结构，其包括相对致密，高耐久性相位相对多孔的耐磨相。 第二阶段比涡轮机的叶片比第二区域相对更易磨损。

公开(公告)号：US20160108510A1

公开(公告)日：2016-04-21

申请号：US14204367

申请日：2014-03-11

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Glen Harold KIRBY ,  Nicholas Edward ANTOLINO ,  Luc Stephane LEBLANC

IPC: C23C4/12 ,  C23C4/04

CPC classification number: C04B41/5045 ,  C04B41/009 ,  C04B41/52 ,  C04B41/89 ,  C23C4/02 ,  C23C4/04 ,  C23C4/11 ,  C23C4/12 ,  C23C4/129 ,  C23C4/134 ,  C23C4/18 ,  F01D5/288 ,  F05D2300/15 ,  F05D2300/211 ,  C04B35/565 ,  C04B35/806 ,  C04B41/5096 ,  C04B41/4527 ,  C04B41/5024 ,  C04B2103/0021 ,  C04B41/526

Abstract: A rare earth silicate-based hermetic layer includes a thermal sprayed coating including a rare earth silicate having a hermetic microstructure. An environmental barrier coating includes a bond coat layer including silicon; and at least one rare earth silicate-based hermetic layer deposited on the bond coat layer by thermal spraying. The rare earth silicate-based hermetic layer includes a thermal sprayed coating including a rare earth silicate having a hermetic microstructure. An article for service in extreme environments may be provided with such an environmental barrier coating. A thermal spray feedstock for producing a rare earth silicate-based hermetic layer.

Abstract translation: 稀土硅酸盐系密封层包括具有密闭微结构的稀土硅酸盐的热喷涂层。 环境保护涂层包括包含硅的粘合涂层; 和通过热喷涂沉积在粘合涂层上的至少一种稀土硅酸盐基密封层。 稀土硅酸盐系密封层包括具有密闭微结构的稀土硅酸盐的热喷涂层。 在极端环境中用于服务的物品可以设置有这种环境屏障涂层。 用于生产稀土硅酸盐基密封层的热喷涂原料。

公开(公告)号：US20150354393A1

公开(公告)日：2015-12-10

申请号：US14300666

申请日：2014-06-10

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Don Mark LIPKIN ,  Luc Stephane LEBLANC ,  Joshua Lee MARGOLIES ,  Nicholas Edward ANTOLINO

IPC: F01D11/12 ,  C23C4/00

CPC classification number: C23C4/01 ,  C23C4/10 ,  F01D11/122 ,  F01D11/125 ,  F05D2250/121 ,  F05D2250/184 ,  F05D2250/24 ,  F05D2250/283 ,  F05D2250/294 ,  F05D2300/514 ,  F05D2300/522

Abstract: Methods of manufacturing turbine shrouds with an abradable coating that balance the apparently contradictory requirements of high flowpath solidity, low blade tip wear, and good durability in service. The methods include obtaining a shroud substrate. The methods may include obtaining a coating system on the shroud substrate. The methods include forming an abradable coating on a surface of the coating system so as to form a substantially smooth flowpath surface. Forming the abradable coating includes forming a relatively dense scaffold and relatively porous filler regions in-between the relatively dense abradable scaffold. The methods may also include machining the abradable so as to achieve a substantially smooth flowpath surface comprising a relatively porous abradable phase surrounded by a relatively dense, high-durability corrale phase.

Abstract translation: 制造具有可磨损涂层的涡轮罩的方法，其平衡了高流动路径坚固性，低叶尖磨损和良好的耐久性在服务中的明显矛盾的要求。 所述方法包括获得护罩衬底。 所述方法可以包括获得护罩衬底上的涂覆系统。 所述方法包括在涂层系统的表面上形成可磨损涂层，以便形成基本平滑的流路表面。 形成可磨损涂层包括在相对致密的可磨损支架之间形成相对致密的支架和相对多孔的填料区域。 所述方法还可以包括对可磨损进行加工，以便实现基本上平滑的流路表面，该表面包括由相对致密的高耐久性Corrale相包围的相对多孔的可磨损相。

公开(公告)号：US20160084102A1

公开(公告)日：2016-03-24

申请号：US14489686

申请日：2014-09-18

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Surinder Singh PABLA ,  Luc Stephane LEBLANC ,  Donald Earl FLOYD

IPC: F01D11/12 ,  F16J15/16

CPC classification number: F01D11/122 ,  F05D2230/90 ,  F05D2250/181 ,  F05D2300/173 ,  F05D2300/2118 ,  F05D2300/608 ,  F05D2300/611 ,  F16J15/16 ,  F16J15/445 ,  Y02T50/671 ,  Y02T50/6765

Abstract: An abradable seal having a metallic substrate and a multi-layered ceramic coating on the metallic substrate. The multi-layered ceramic coating includes a base layer deposited on the metallic substrate, an abradable layer overlaying the first layer, and an abrading layer overlaying the second layer. The abrading layer is formed of an abrading material. A turbine system and a method for forming an abradable seal are also disclosed.

Abstract translation: 具有金属基底和在金属基底上的多层陶瓷涂层的耐磨密封件。 多层陶瓷涂层包括沉积在金属基底上的基底层，覆盖第一层的可磨损层和覆盖第二层的研磨层。 研磨层由研磨材料形成。 还公开了一种用于形成耐磨密封件的涡轮机系统和方法。

公开(公告)号：US20150083227A1

公开(公告)日：2015-03-26

申请号：US14037790

申请日：2013-09-26

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Rahul Anil BIDKAR ,  Ambarish Jayant KULKARNI ,  Luc Stephane LEBLANC ,  Vaibhav BAHADUR

IPC: F15D1/12 ,  C23C4/10 ,  C23C4/12

CPC classification number: C09D5/1681 ,  C08K2003/221 ,  C09D5/00 ,  C23C4/11 ,  C23C4/134 ,  C23C4/18 ,  F15D1/003 ,  F15D1/0085 ,  Y10T137/0318 ,  Y10T428/13 ,  Y10T428/1393 ,  Y10T428/24355

Abstract: An article includes a substrate with a coating having asperities such that an average spacing between the asperities is between about 0.01 and about 1.5 micron. An average surface roughness of the coating is up to about 2 microns, and an average porosity of the coating is in the range from about 35% to about 70%. A material to reduce surface energy is disposed on the coating. A method for making such an article and a method for decreasing fluid drag across such an article are also provided.

Abstract translation: 一种制品包括具有粗糙度的涂层的基底，使得凹凸之间的平均间距在约0.01至约1.5微米之间。 涂层的平均表面粗糙度高达约2微米，涂层的平均孔隙率在约35％至约70％的范围内。 用于降低表面能的材料设置在涂层上。 还提供了制造这种制品的方法和减少跨越这种制品的流体阻力的方法。