Patent application number | Description | Published |
20100047075 | Thermal Barrier Coating Compositions, Processes for Applying Same and Articles Coated with Same - A process of coating an article includes the steps of (1) applying a ceramic compound to at least one surface of an article to form a layer of ceramic compound; (2) applying at least one inert compound upon the ceramic compound layer to form a protective layer, wherein the at least one inert compound is composed of a first inert compound having a cubic crystalline structure of formula (I) A | 02-25-2010 |
20100098865 | DURABLE REACTIVE THERMAL BARRIER COATINGS - A turbine engine component is provided which has a substrate and a thermal barrier coating applied over the substrate. The thermal barrier coating comprises at least one layer of a first material selected from the group consisting of a zirconate, a hafnate, a titanate, and mixtures thereof, which first material has been mixed with, and contains, from about 25 to 99 wt % of at least one oxide. The at least one oxide comprises at least one oxide of a material selected from the group consisting of lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, scandium, indium, and yttrium. If desired, a metallic bond coat may be present between the substrate and the thermal barrier coating system. A method for forming the thermal barrier coating system of the present invention is described. | 04-22-2010 |
20100136241 | SILICATE RESISTANT THERMAL BARRIER COATING WITH ALTERNATING LAYERS - A thermal barrier coating system for use on a turbine engine component which reduces sand related distress is provided. The coating system comprises at least one first layer of a stabilized material selected from the group consisting of zirconia, hafnia, and titania and at least one second layer containing at least one of oxyapatite and garnet. Where the coating system comprises multiple first layers and multiple second layers, the layers are formed or deposited in an alternating manner. | 06-03-2010 |
20100189911 | Bond Coating and Thermal Barrier Compositions, Processes for Applying Both, and Their Coated Articles - A coated article includes an article having at least one surface and composed of a molybdenum based refractory metal alloy base substrate, a niobium based refractory metal alloy base substrate or a silicon base substrate. A bond coat layer is disposed upon the surface. The bond coat layer includes a molybdenum disilicide base compound and at least one of the following: silicon nitride, silicon carbide or tantalum oxide. A process for coating the article includes the steps of applying upon the article's surface the aforementioned bond coat layer. A functionally graded material layer is applied upon the bond coat layer. The functionally graded material layer comprising molybdenum disilicide, mullite and at least one of the following: silicon nitride, silicon carbide or tantalum oxide. A thermal barrier coating layer is then applied upon the functionally graded material layer. | 07-29-2010 |
20100196605 | Yttria-Stabilized Zirconia Coating with a Molten Silicate Resistant Outer Layer - A turbine engine component is provided which has a substrate, a yttria-stabilized zirconia coating applied over the substrate, and a molten silicate resistant outer layer. The molten silicate resistant outer layer is formed from gadolinia or gadolinia-stabilized zirconia. A method for forming the coating system of the present invention is described. | 08-05-2010 |
20110033284 | STRUCTURALLY DIVERSE THERMAL BARRIER COATINGS - A coated article includes an article having at least one surface and a thermal barrier coating system disposed upon the at least one surface. The thermal barrier coating system has at least two layers, with each layer having a different microstructure. The microstructure of each layer may be any one of the following: columnar, amorphous, randomized, and splat-like. The thermal barrier coating system typically exhibits a thermal conductivity of no more than 16 BTU in/hr ft | 02-10-2011 |
20110086179 | THERMAL BARRIER COATING WITH A PLASMA SPRAY TOP LAYER - A turbine engine component has a substrate, a thermal barrier coating deposited onto the substrate, and a sealing layer of ceramic material on an outer surface of the thermal barrier coating for limiting molten sand penetration. | 04-14-2011 |
20110143043 | PLASMA APPLICATION OF THERMAL BARRIER COATINGS WITH REDUCED THERMAL CONDUCTIVITY ON COMBUSTOR HARDWARE - A process for forming a thermal barrier coating comprises the steps of providing a substrate, providing a gadolinia stabilized zirconia powder, and forming a thermal barrier coating having at least one of a porosity in a range of from 5 to 20% and a dense segmented structure on said substrate by supplying the gadolinia stabilized powder to a spray gun and using an air plasma spray technique. | 06-16-2011 |
20110165335 | DISPERSION STRENGTHENED RARE EARTH STABILIZED ZIRCONIA - A process for forming a coating on a substrate, such as a turbine engine component, is provided. The process comprises the steps of: providing a first rare earth oxide stabilized zirconia composition; providing a second composition selected from the group consisting of a yttria stabilized zirconia composition, a ceria stabilized zirconia composition, alumina, a chromia-alumina composition, a gadolinia stabilized zirconia composition, and mixtures thereof; blending the first rare earth oxide stabilized zirconia composition with the second composition to form a blended powder; and depositing the blended powder onto the substrate. Articles having the coating formed from the above process are also described. | 07-07-2011 |
20110223317 | DIRECT THERMAL STABILIZATION FOR COATING APPLICATION - A coating system includes a first work piece, a work piece support for holding the first work piece, a plasma-based coating delivery apparatus configured to apply a coating material to the first work piece in a plasma-based vapor stream, and a first electron gun configured to direct a first electron beam at the first work piece while the plasma-based coating delivery apparatus applies the coating to the first work piece for heating the first work piece being coated, wherein the first electron gun is configured to direct the first electron beam at a region of the first work piece facing away from the plasma-based coating delivery apparatus. | 09-15-2011 |
20110223353 | HIGH PRESSURE PRE-OXIDATION FOR DEPOSITION OF THERMAL BARRIER COATING WITH HOOD - An apparatus for coating a work piece includes a process chamber, a coating material supply apparatus located at least partially within the process chamber for delivering a coating material to the work piece, a pre-heater assembly adjoining the process chamber, and a support for holding the work piece. The pre-heater assembly includes a housing that opens to the process chamber, a thermal hood positioned within the housing and configured to reflect thermal energy for reflecting thermal energy toward the work piece. The support is movable to selectively move the work piece between a first position within the housing of the pre-heater assembly and a second position within the process chamber and outside the housing of the pre-heater assembly. | 09-15-2011 |
20110223354 | HIGH PRESSURE PRE-OXIDATION FOR DEPOSITION OF THERMAL BARRIER COATING - An apparatus for coating a work piece includes a process chamber, a coating material supply apparatus located at least partially within the process chamber for delivering a coating material to the work piece, a pre-heater assembly adjoining the process chamber, and a support for holding the work piece. The pre-heater assembly includes a housing that opens to the process chamber, a susceptor comprising a ceramic material positioned at least partially within the housing, and a pre-heater electron gun configured to configured to direct an electron beam at the susceptor such that the susceptor radiates heat toward the work piece. The support is movable to selectively move the work piece between a first position within the housing of the pre-heater assembly and a second position within the process chamber and outside the housing of the pre-heater assembly. | 09-15-2011 |
20110223355 | THERMAL STABILIZATION OF COATING MATERIAL VAPOR STREAM - A coating system includes a work piece, a coating delivery apparatus configured to apply a coating material to the work piece in a plasma-based vapor stream, and a first electron gun configured to direct a first electron beam at the plasma-based vapor stream for adding thermal energy to the coating material in the plasma-based vapor stream. | 09-15-2011 |
20110223356 | COATING APPARATUS AND METHOD WITH INDIRECT THERMAL STABILIZATION - An apparatus includes a work piece support for holding and selectively rotating a work piece, a coating delivery apparatus configured to apply a coating material to the work piece, a susceptor positioned adjacent to the work piece support, and a first electron gun configured to direct a first electron beam at the susceptor such that the susceptor radiates heat toward the work piece. | 09-15-2011 |
20110244138 | METALLIC COATING FOR NON-LINE OF SIGHT AREAS - A disclosed process for coating a turbine vane includes the steps of applying a coating to line of sight surfaces with a thermal spraying process and applying a slurry coating to non-line of sight surfaces to provide oxidative protection and desired thermal protection. Moreover, the applied coating on both the line of sight and non-line of sight surfaces provides a bond layer for the application of a ceramic coating. | 10-06-2011 |
20110281107 | LAYERED THERMAL BARRIER COATING WITH BLENDED TRANSITION AND METHOD OF APPLICATION - A multilayer coating includes a bond coat layer and a first barrier layer applied on the bond coat layer. The first barrier layer has a compositional gradient comprising a majority of a first rare earth stabilized zirconia material proximate the bond coat layer to a majority of a second rare earth stabilized zirconia material away from the bond coat layer. The first and second rare earth stabilized zirconia materials are different. | 11-17-2011 |
20120111524 | SHOT TUBE PLUNGER FOR A DIE CASTING SYSTEM - A shot tube plunger for a die casting system includes a first face, an opposing second face and an outer surface disposed between said first face and said opposing second face. A channel circumferentially extends about the outer surface. The channel is operable to receive a portion of a charge of material introduced into the die casting system. | 05-10-2012 |
20120112391 | CRUCIBLE FOR MASTER ALLOYING - A crucible includes a composite of least two materials. The two materials are selected from a group consisting of alumina, calcia, yttria, erbia, gadolinia, magnesia, hafnia, and zirconia in a composition that has better resistance to reaction with hafnium from a molten hafnium-containing alloy than a nominal crucible composition of 70 wt % magnesia and 30 wt % alumina. | 05-10-2012 |
20120282402 | Coating Methods and Apparatus - An apparatus deposits a coating on a part. The apparatus comprises a chamber and a sting assembly for carrying the part. The sting assembly is shiftable between: an inserted condition where the sting assembly holds the part within the chamber for coating; and a retracted condition where the sting assembly holds the part outside of the chamber. The apparatus comprises a source of the coating material positioned to communicate the coating material to the part in the inserted condition. The apparatus comprises a thermal hood comprising a first member and a second member. The second member is between the first member and the part when the part is in the inserted condition. The second member is carried by the sting assembly so as to retract with the sting assembly as the sting assembly is retracted from the inserted condition to the retracted condition. | 11-08-2012 |
20130065048 | LAYERED THERMAL BARRIER COATING WITH BLENDED TRANSITION AND METHOD OF APPLICATION - A multilayer coating includes a bond coat layer, a first barrier layer applied on the bond coat layer, and a second barrier layer applied on the first barrier layer. The first barrier layer has a compositional gradient comprising a majority of a first rare earth stabilized zirconia material proximate the bond coat layer to a majority of a second rare earth stabilized zirconia material away from the bond coat layer. The first and second rare earth stabilized zirconia materials are different. The second barrier layer has a compositional gradient comprising a majority of the second rare earth stabilized zirconia material to 100 wt % of a third rare earth stabilized zirconia material away from the first barrier layer. | 03-14-2013 |
20140030446 | METHOD OF APPLICATION FOR LAYERED THERMAL BARRIER COATING WITH BLENDED TRANSITION - A method includes generating a plasma plume with a plasma gun, delivering a plurality of coating materials to the plasma plume with a powder feeder assembly to vaporize the coating materials. The delivery includes delivering a first (bond coat) material from a first powder feeder to the plasma gun, ceasing delivery of the first material, increasing a rate of delivery of a second (rare earth stabilized zirconia) material from a second powder feeder to the plasma plume, increasing a rate of delivery of a third material (a rare earth stabilized zirconia material different from the second material) from a third powder feeder to the plasma plume, decreasing a rate of delivery of the second material, and decreasing a rate of delivery of the third material, and depositing the plurality of coating materials on a work piece to produce a layered coating with blended transitions between coating layers. | 01-30-2014 |
20140140823 | HYBRID GAS TURBINE BEARING SUPPORT - A hybrid radial gas turbine engine component comprises an inner hub portion joined to an outer ring portion. The inner hub portion is a first alloy and operates at temperatures less than 1200° F. The outer ring portion is a second alloy and is designed to withstand extended periods at temperatures greater than 1200° F. | 05-22-2014 |