Patent application number | Description | Published |
20090004379 | METHOD OF PREPARING WETTING-RESISTANT SURFACES AND ARTICLES INCORPORATING THE SAME - The present invention provides methods for manufacturing an article having a wetting-resistant surface. The method includes providing a mixture comprising a plurality of micron-sized first particles and a plurality of nano-sized second particles, and a binder; depositing the mixture onto a substrate to form a wetting-resistant surface via a thermal spray process. The mixture is deposited without substantial melting of the first and second particles. The wetting-resistant surface has wettability sufficient to generate, with a reference fluid, a static contact angle of greater than about 90 degrees. | 01-01-2009 |
20090162670 | METHOD FOR APPLYING CERAMIC COATINGS TO SMOOTH SURFACES BY AIR PLASMA SPRAY TECHNIQUES, AND RELATED ARTICLES - A method for applying a ceramic coating over a substantially smooth protective coating on a metal substrate is disclosed. The method includes the step of air plasma spraying (APS) particles of the ceramic coating at a pre-selected particle velocity of at least about 500 meters per second. The ceramic coating particles have an average particle size no greater than about 50 microns. An article is also described, including a metal substrate; and a substantially smooth protective coating over the substrate, having a roughness (Ra) less than about 200 micro-inches. An adherent ceramic coating is disposed on the substantially smooth protective coating. | 06-25-2009 |
20100124608 | METHOD FOR APPLYING AND DIMENSIONING AN ABRADABLE COATING - Disclosed is a coated substrate including a substrate coating applied to at least one substantially flat surface of the substrate, the coating including at least one of an axial concavity and a circumferential curvature, the substrate being configured for disposal parametrically about a moving component. | 05-20-2010 |
20100226783 | Erosion and Corrosion Resistant Turbine Compressor Airfoil and Method of Making the Same - A sacrificial and erosion-resistant turbine compressor airfoil includes a turbine compressor airfoil having a modified airfoil surface. The airfoil surface has an airfoil coating that includes a sacrificial coating comprising a layer of Al, Cr, Zn, an Ni—Al alloy, an Al—Si alloy, an Al-based alloy, a Cr-based alloy or a Zn-based alloy, an Al polymer composite, or a combination thereof, or a layer of a conductive undercoat and an overcoat of an inorganic matrix binder having a plurality of ceramic particles and conductive particles embedded therein disposed on the undercoat. The airfoil coating also includes an sacrificial coating, wherein one of the sacrificial coating or the erosion-resistant coating is disposed on the airfoil surface and the other of the corrosion-resistant coating or the erosion-resistant coating is disposed on the respective one, and wherein the sacrificial coating is more anodic than the airfoil surface or the erosion-resistant coating. | 09-09-2010 |
20100242580 | METHOD FOR TESTING HIGH TEMPERATURE MECHANICAL DURABILITY OF ARTICLES - A process for erosion testing of a specimen article includes securing a test specimen in a test rig; measuring physical characteristics of the test specimen article; using a thermal spray coating apparatus, flowing incident particles at the test specimen; and re-measuring the physical characteristics of the test specimen. | 09-30-2010 |
20100247927 | SULFIDATION-RESISTANT COATING SYSTEM AND PROCESS THEREFOR - A coating system and process for protecting component surfaces exposed to sulfur-containing environments at elevated temperatures. The coating system includes a sulfidation-resistant overlay coating that is predominantly niobium or molybdenum. | 09-30-2010 |
20110048017 | METHOD OF DEPOSITING PROTECTIVE COATINGS ON TURBINE COMBUSTION COMPONENTS - A method is provided for high velocity air plasma spraying (APS) application of a protective coating system, such as a bond coat with or without an overlying ceramic thermal barrier coat, to a superalloy metal substrate. Application of MCrAlY alloy bond particles (where M is at least one of iron, cobalt, or nickel) onto the metal substrate is maintained at a particle velocity of at least 400 meters per second (m/s), for example within a range of 400 m/s to 700 m/s. The resulting bond coat on the metal substrate has a surface roughness of about 300 to about 500 μinch Ra, and a density of at least 90% of theoretical density. The protective coating may include a ceramic thermal barrier coat applied over the bond coat by any suitable process. | 03-03-2011 |
20110049110 | ADJUSTABLE PLASMA SPRAY GUN - An adjustable plasma spray gun apparatus is disclosed. In one embodiment, an adjustable plasma spray gun apparatus includes: a plasma spray gun body having a fore portion and an aft portion; and a first coupler configured to removably attach to the plasma spray gun body at the aft portion, the coupler including: a first portion having a first axial opening configured to removably attach to the plasma spray gun body at the aft portion; and a second portion having a second axial opening configured to removably attach to one of an electrode body or a second coupler. | 03-03-2011 |
20110052824 | APPARATUS AND PROCESS FOR DEPOSITING COATINGS - A spray coating process and apparatus suitable for depositing coatings on surfaces of components, and particularly surfaces that are difficult to access with conventional cold spraying equipment. The process and apparatus employ a spray gun having a tubular body with a longitudinal axis and an exit at one end thereof. The body has a first portion defining a converging passage, a second portion defining a diverging passage that defines the exit of the body, and a throat portion therebetween that defines a throat between and connecting the converging and diverging passages. The gun is further equipped with at least one gas inlet for introducing a gas upstream of the converging passage, and at least one feedstock inlet for introducing a feedstock at or immediately upstream of the throat. | 03-03-2011 |
20110162374 | ARTICLES HAVING DAMPING COATINGS THEREON - An article, such as a bucket, a blade, a nozzle, a vane, a strut, a fuel nozzle, a combustion casing, and a transition piece, the article having a damping coating comprising approximately 8 wt % to approximately 15 wt % Y | 07-07-2011 |
20110217568 | LAYERED ARTICLE - An article comprises a first outer layer; a second intermediate layer; and a substrate; wherein the second intermediate layer contacts the first outer layer at a first interface and the substrate at a second interface. The first outer layer comprises Al | 09-08-2011 |
20110300303 | SULFIDATION-RESISTANT COATING SYSTEM AND PROCESS THEREFOR - A coating system and process for protecting component surfaces exposed to sulfur-containing environments at elevated temperatures. The coating system includes a sulfidation-resistant overlay coating that is predominantly niobium or molybdenum. | 12-08-2011 |
20130115867 | ENCLOSURE SYSTEM AND METHOD FOR APPLYING COATING - An enclosure system is provided having a shroud configured to cover at least a portion of a shaft. The shroud includes an input port and an output port. The input port is configured to accept at least one of a coating tool and an abrasive supplying tool. The output port is connected to a vacuum system. | 05-09-2013 |
20130216798 | COATED ARTICLE AND PROCESS OF COATING AN ARTICLE - A coated article and a coating application process are disclosed. The coated article includes a metallic surface, a first layer positioned proximal to the metallic surface, the first layer having a first ductility, and a second layer positioned distal from the metallic surface, the second layer having a second ductility. The first ductility is at least about 20% greater than the second ductility. The process includes providing an article, the article comprising a metallic surface, applying a first layer proximal to the metallic surface, the first layer having a first ductility, and applying a second layer distal from the metallic surface, the second layer having a second ductility. | 08-22-2013 |
20130340403 | EROSION AND CORROSION RESISTANT COATINGS FOR EXHAUST GAS RECIRCULATION BASED GAS TURBINES - A compressor blade for use in a compressor section of a gas turbine engine, comprising: a martensitic stainless steel compressor blade and an abrasive coating having an anodic component. The compressor blade has a blade portion, a dovetail portion and a platform portion intermediate the blade portion and the dovetail portion, the blade portion terminating in a tip opposite the dovetail portion. A cobalt-based coating overlies at least the blade portion of the compressor blade. The cobalt-based coating comprises a cobalt based material that includes precipitates of tungsten carbide that provide erosion resistance and particles of a sacrificial metal-based material distributed through the cobalt-based coating that provide galvanic corrosion resistance to the system. | 12-26-2013 |
20140065433 | COATINGS FOR DISSIPATING VIBRATION-INDUCED STRESSES IN COMPONENTS AND COMPONENTS PROVIDED THEREWITH - A coating material suitable for use in high temperature environments and capable of providing a damping effect to a component subjected to vibration-induced stresses. The coating material defines a damping coating layer of a coating system that lies on and contacts a substrate of a component and defines an outermost surface of the component. The coating system includes at least a second coating layer contacted by the damping coating layer. The damping coating layer contains a ferroelastic ceramic composition having a tetragonality ratio, c/a, of greater than 1 to 1.02, where “c” is a c axis of a unit cell of the ferroelastic ceramic composition and “a” is either of two orthogonal axes, a and b, of the ferroelastic ceramic composition. | 03-06-2014 |
20140094356 | TREATMENT PROCESS, OXIDE-FORMING TREATMENT COMPOSITION, AND TREATED COMPONENT - A treatment process, an oxide-forming treatment composition, and a treated component are disclosed. The treatment process includes applying an oxide-forming treatment composition to a ceramic coating and heating the oxide-forming treatment composition to form an oxide within the ceramic coating. The oxide-forming treatment composition includes a solute and a corrosion inhibitor. The oxide-forming treatment composition is super-saturated with the corrosion inhibitor. The treated component includes a ceramic coating and one or both of a corrosion inhibitor and an oxide formed by an oxide-forming treatment composition having the corrosion inhibitor. The corrosion inhibitor and the oxide-forming treatment composition are within the ceramic coating. | 04-03-2014 |
20140193760 | COATED ARTICLE, PROCESS OF COATING AN ARTICLE, AND METHOD OF USING A COATED ARTICLE - A coated article, a process of coating an article, and a process of using an article are disclosed. The coated article includes a substrate, a porous coating material, and a thermal barrier coating material. The porous coating material includes a porosity between about 1 percent and about 20 percent, by volume. The thermal barrier coating material has a thermal conductivity that is lower than a thermal conductivity of the substrate. The porous coating material differs in one or both of composition and microstructure from the thermal barrier coating material. Additionally or alternatively, the porous coating material resists at least one of sintering, densification, and phase destabilization for a predetermined period at a predetermined temperature. The process of coating an article includes applying a coating to form the coated article. | 07-10-2014 |