Class / Patent application number | Description | Number of patent applications / Date published |
427453000 | Metal oxide containing coating | 48 |
20080213496 | Method of coating semiconductor processing apparatus with protective yttrium-containing coatings - Methods of applying specialty ceramic materials to semiconductor processing apparatus, where the specialty ceramic materials are resistant to halogen-comprising plasmas. The specialty ceramic materials contain at least one yttrium oxide-comprising solid solution. Some embodiments of the specialty ceramic materials have been modified to provide a resistivity which reduces the possibility of arcing within a semiconductor processing chamber. | 09-04-2008 |
20080280058 | Method of Preparing Zinc Oxide Nanorods on a Substrate By Chemical Spray Pyrolysis - A method of preparing nanostructured zinc oxide layers on a substrate by chemical spray pyrolysis at moderate deposition temperatures from 350° C. to 600° C. is disclosed. An aqueous or aqueous alcoholic solution comprising zinc chloride or zinc acetate as precursors is prepared and sprayed onto the preheated substrate so that the precursor reacts to form zinc oxide layer on the substrate. Thiourea or urea may be also added to the solution. Glass, silicon, or metal oxide covered glass can be used as the substrate. | 11-13-2008 |
20080311306 | SUPERFINE CERAMIC THERMAL SPRAY FEEDSTOCK COMPRISING CERAMIC OXIDE GRAIN GROWTH INHIBITOR AND METHODS OF MAKING - Superfine ceramic thermal spray feedstock compositions and methods of making and using such compositions are provided. In an embodiment, a thermal spray feedstock composition comprises: a superfine ceramic material comprising grains having an average longest dimension of about 100 nanometers to about 500 nanometers; and a grain growth inhibitor comprising a ceramic oxide different from the superfine ceramic material. | 12-18-2008 |
20090068373 | Novel synergistic process and recipe for fabrication of a high integrity membrane electrode assembly of solid oxide fuel cell - A recipe and two sequential processes for fabrication of electrode substrates of solid oxide fuel cells (SOFCs) are described in this invention. The typical recipe consists of 50˜86 wt % electrolyte (8YSZ) or 50˜80 wt % anode electrode (NiO/8YSZ), 12˜22 wt % MEK (solvent 1), 5˜9 wt % EtOH (solvent 2), 1˜2 wt % TEA (dispersant), 0.5˜2 wt % DBP (plasticizer 1), 0.5˜2 wt % PEG (plasticizer 2), 3˜6 wt % PVB (binder), and 0.1˜10 wt % graphite (pore former). Two sequential processes include: 1. The process for preparation of the green tape slurry from materials of the recipe, 2. The synergistic process for fabrication of a high integrity membrane electrode assembly (MEA) of SOFC from the prepared electrode substrates. | 03-12-2009 |
20090136677 | Metal Complexes of Tridentate Beta-Ketoiminates - Metal-containing complexes of a tridentate beta-ketoiminate, one embodiment of which is represented by the structure: | 05-28-2009 |
20090191353 | TURBINE COMPONENT OTHER THAN AIRFOIL HAVING CERAMIC CORROSION RESISTANT COATING AND METHODS FOR MAKING SAME - An article comprising a turbine component other than an airfoil having a metal substrate and a ceramic corrosion resistant coating overlaying the metal substrate. This coating has a thickness up to about 5 mils (127 microns) and comprises a ceramic metal oxide selected from the group consisting of zirconia, hafnia and mixtures thereof. This coating can be formed by a method comprising the following steps: (a) providing a turbine component other than an airfoil comprising the metal substrate; (b) providing a gel-forming solution comprising a ceramic metal oxide precursor; (c) heating the gel-forming solution to a first preselected temperature for a first preselected time to form a gel; (d) depositing the gel on the metal substrate; and (e) firing the gel at a second preselected temperature above the first preselected temperature to form the ceramic corrosion resistant coating comprising the ceramic metal oxide. This coating can also be formed by alternative methods wherein a ceramic composition comprising the ceramic metal oxide is deposited by physical vapor deposition on the metal substrate to provide a strain-tolerant columnar structure, or is thermal sprayed on the metal substrate. | 07-30-2009 |
20100040796 | Heat-dissipating structure and manufacturing method thereof - A manufacturing method for a heat-dissipating structure is disclosed. The manufacturing method comprises the following steps. Step 1 is preparing powders of materials with far infrared conversion. Step 2 is modifying surfaces of the powders and step 3 is thermal spraying the modified powders on a substrate for forming a heat-dissipating layer on the substrate. The heat-dissipating structure can contact with a heat source and the heat is dissipated by the radiation of far infrared. Moreover, the equivalent heat resistance between the substrate and air is reduced so that the heat dissipation efficiency is improved. | 02-18-2010 |
20100119726 | Group 2 Metal Precursors For Deposition Of Group 2 Metal Oxide Films - This invention is related to Group 2 metal-containing polydentate β-ketoiminate precursors and compositions comprising Group 2 metal-containing polydentate β-ketoiminate precursors, wherein the polydentate β-ketoiminate precursors incorporate an alkoxy group in the imino portion of the molecule. The compounds and compositions are useful for fabricating metal containing films on substrates such as silicon, metal nitride, metal oxide and other metal layers via chemical vapor deposition (CVD) processes. | 05-13-2010 |
20100136249 | PLASMA-SPRAYED LAYERS OF ALUMINUM OXIDE - Plasma-sprayed layers of aluminium oxide on a substrate are produced by using a pyrogenically produced aluminium oxide, for example selected from the group consisting of borosilicate and steel, as starting powder. | 06-03-2010 |
20100183816 | LOW VELOCITY OXYGEN-FUELED FLAME SPRAY METHOD AND APPARATUS FOR MAKING FERRITE MATERIAL PRODUCTS AND PRODUCTS PRODUCED THEREBY - A method for making ferrite powder may include providing ferrite feed materials in a form of particles, such as having different sizes and irregular shapes. The method may further include exposing the ferrite feed materials to a low velocity oxygen-fueled (LVOF) flame spray. This may provide a more spherical shape to irregularly shaped particles to thereby make the ferrite powder. An apparatus for making ferrite powder may include a feeder for ferrite feed materials and a LVOF flame spray system for exposing the ferrite feed materials to the flame spray. | 07-22-2010 |
20100203254 | DISPERSION STRENGTHENED CERAMIC THERMAL BARRIER COATING - A method of forming a thermal barrier coating on a turbine component is disclosed. The method comprises first depositing a bond coat on the turbine component. A dispersion strengthened ceramic layer containing boride particles as dispersoids is formed on the bond coat layer by plasma deposition. Ceramic coated boride particles comprise the plasma deposition feedstock in order to disperse the boride particles in the ceramic layer. The dispersion strengthened ceramic layer includes at least one of yttria-stabilized zirconia, rare earth stabilized zirconia, rare earth stabilized hafnia, and rare earth stabilized titanate. | 08-12-2010 |
20100266781 | Structural Components for Oil, Gas, Exploration, Refining and Petrochemical Applications - A method to improve corrosion, abrasion, and fire resistant properties of structural components for use in oil, gas, exploration, refining and petrochemical applications is provided. The structural component is suitable for as refinery and/or petrochemical process equipment and piping, include but are not limited to process vessels, transfer lines and process pipes, heat exchangers, cyclones, and distillation columns. The method comprises providing the structural component with a plurality of layers, a corrosion resistant layer in contact with the corrosive petroleum products comprising a material selected from amorphous metals, ceramic materials, or combinations thereof; a structural layer; and an outer layer comprising a fire resistive material. In one embodiment, the structural component is further provided with at least another layer selected from a metal sheeting layer, an adhesive layer, and a containment layer. The structural component is characterized as having excellent corrosion/abrasion/erosion properties and fire-resistant properties. | 10-21-2010 |
20110003083 | Method for making functional ceramic films on ceramic materials - A method for forming functional ceramic films on ceramic materials, to enhance mechanical properties, chemical stability, and/or biological properties of the materials. The functional ceramic film comprises at least about 10 weight percent pure zirconia, with phase transformation at tetragonal/cubic phases at high temperature to monoclinic phase at room temperature, leading to volume expansion and compressive stress. The compressive stress enhances mechanical strength, wear resistance, hardness and other properties, and also tends to eliminate cracks and flaws in the ceramic material. The functional film may also include bioactive materials, and may include a structure for eluting drugs so as to serve as a drug delivery vehicle. The functional ceramic films may be centered on the base ceramic, or the materials may be co-centered. Devices having the ceramic materials with functional films may be used, for various medical or dental purposes. Alternatively, the ceramics and films may be tailored for use in engineering or industrial applications, or as armor. | 01-06-2011 |
20110003084 | Process of Making Ceria-Based Electrolyte Coating - It has been surprisingly found that injecting ceria-based particles (mean size less than 200 nm) suspended in a combustible organic solvent into a plume having a maximum temperature between about 2,600° C. and 4,000° C. to impart a mean temperature to the particles from about 2,600° C. to about 3,800° C., and to accelerate the particles to a mean velocity between about 600 to 1000 m/s, produces a thin, uniform, dense, crack-free, nanocrystalline ceria-based coating, which may be applied on porous cermet or metal substrate, for example. The physical environment of a high-velocity oxy-fuel (HVOF) thermal spraying gun suitably ably deployed using standard fuels produces these conditions. The method of the present invention is particularly useful for the cost-effective fabrication of ceria-containing electrolytes for solid oxide fuel cells (SOFCs). | 01-06-2011 |
20110104384 | Erosion Resistant Cermet Linings for Oil & Gas Exploration, Refining and Petrochemical Processing Applications - The present invention is directed to a method for protecting metal surfaces in oil & gas exploration and production, refinery and petrochemical process applications subject to solid particulate erosion at temperatures of up to 1000° C. The method includes the step of providing the metal surfaces in such applications with a hot erosion resistant cermet lining or insert, wherein the cermet lining or insert includes a) about 30 to about 95 vol % of a ceramic phase, and b) a metal binder phase, wherein the cermet lining or insert has a HEAT erosion resistance index of at least 5.0 and a K | 05-05-2011 |
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 |
20110195196 | METHOD FOR MANUFACTURING TRANSPARENT OXIDE ELECTRODE USING ELECTRON BEAM POST-TREATMENT - The present invention relates to a method for manufacturing a transparent oxide electrode using an electron beam post-treatment. The method for manufacturing a transparent oxide electrode comprises the steps of: (a) forming a thin film for the transparent anode on a substrate; and (b) irradiating an electron beam to the surface of the thin film for the transparent oxide electrode. The method of the present invention is characterized in that no additional heat treatment process is performed after step (a). The method for manufacturing a transparent oxide electrode according to the present invention does not perform a high-temperature heat treatment process but rather performs a low-temperature electron beam irradiation process as a post-treatment, thus obtaining a transparent oxide electrode having excellent characteristics in case where the substrate is made of glass, Pyrex, quartz or even a polymer material which has a low resistance against heat. | 08-11-2011 |
20110250362 | OXIDE COATED CUTTING INSERT - A cutting tool insert, particularly useful for machining of steel and stainless steel, comprising a body of a hard alloy of cemented carbide, cermet, ceramics, cubic boron nitride based material or high speed steel a hard and wear resistant coating; and at least (Al,Cr) | 10-13-2011 |
20110274850 | HYDROTHERMAL SYNTHESIS OF ACTIVE MATERIALS AND IN SITU SPRAYING DEPOSITION FOR LITHIUM ION BATTERY - A method and apparatus for forming an electrochemical layer of a lithium ion battery is provided. A precursor mixture in a carrying medium is activated in a reactor chamber by application of energy to synthesize active materials. The activated precursor mixture is then spray deposited on a substrate. A binder and conductive materials may be blended, or sprayed separately, with the nano- or micro-crystals as they deposit on the surface to enhance adhesion and conductivity. | 11-10-2011 |
20120021132 | Method of Fabricating Thin Film by Microplasma Processing and Apparatus for Same - Provided is a method of fabricating, with satisfactory adhesion, a thin film of a metal or a metallic-compound, such as a metal oxide or nitride, on a substrate made of a high-melting-point material such as silicon or ceramics by using a metal or metallic-compound target as the primary raw material so as to eliminate the necessity of using harmful gases such as organometallic gas, and by using an atmospheric-pressure plasma generated under atmospheric pressure as a reaction field and also as a heat source. Additionally provided is an apparatus for fabricating the thin film. The thin-film fabrication method by microplasma processing includes the steps of disposing a raw material for thin-film fabrication in one or more tubes (A) having a uniform inner diameter throughout, introducing an inert gas and applying a high-frequency voltage to the narrow tubes (A) to generate high-frequency plasma in the narrow tubes (A), heating/evaporating the raw material while maintaining the flow rate of the plasma gas in the narrow tubes (A) and maintaining the plasma gas temperature high, ejecting the evaporated material from the narrow tubes (A) to spray it onto the substrate, heating the substrate with the plasma, and depositing the sprayed material on the substrate under atmospheric pressure. | 01-26-2012 |
20120128886 | NUCLEAR POWER PLANT, METHOD OF FORMING CORROSION-RESISTANT COATING THEREFOR, AND METHOD OF OPERATING NUCLEAR POWER PLANT - In a nuclear power plant, a corrosion-resistant oxide film on a surface of the metal component of a reactor structure is exposed to a high-temperature water, the corrosion-resistant oxide film containing an oxide having a property of a P-type semiconductor, and a catalytic substance having a property of an N-type semiconductor is deposited on the oxide film. The oxide film maintains the property of the P-type semiconductor. | 05-24-2012 |
20120135155 | PROCESS CHAMBER COMPONENT HAVING YTTRIUM-ALUMINUM COATING - A substrate processing chamber component comprising a chamber component structure having an yttrium-aluminum coating. The yttrium-aluminum coating comprises a compositional gradient through a thickness of the coating. | 05-31-2012 |
20120177836 | High-purity fused and crushed zirconia alloy powder and method of producing same - The present invention provides a high-purity fused and crushed stabilized zirconia powder. The powder—with or without further processing, such as plasma spheroidization—is used in thermal spray applications of thermal barrier coatings (TBCs) and high-temperature abradables. The resulting coatings have a significantly improved high temperature sintering resistance, which will enhance the durability and thermal insulation effect of the coating. | 07-12-2012 |
20120177837 | Metallophobic thermally applied ceramic materials - Metal substrates coated with ceramics and resistant to attack by molten metal. | 07-12-2012 |
20120258254 | Methods For Providing High-Surface Area Coatings To Mitigate Hydrocarbon Deposits On Engine And Powertrain Components - Provided are methods related to preventing hydrocarbon residue buildup in engine, exhaust-gas-system or powertrain components. Prevention is achieved by applying coating of a mixed metal oxide via a suspension plasma spray. | 10-11-2012 |
20130095251 | FUEL CELL FLOW FIELD PLATE INCLUDING NON-STOICHIOMETRIC METAL OXIDE LAYER - A flow field plate or bipolar plate for a fuel cell that includes a combination of non-stoichiometric and a conductive material that makes the bipolar plate conductive, hydrophilic and stable in the fuel cell environment. The non-stoichiometric and the conductive material can be deposited on the plate as separate layers or can be combined as a single layer. Either the non-stoichiometric layer or the conductive layer can be deposited first. In one embodiment, the conductive material is gold. | 04-18-2013 |
20130189441 | PROCESS OF FABRICATING THERMAL BARRIER COATINGS - A process of fabricating a thermal barrier coating is disclosed. The process includes cold spraying a substrate with a feedstock to form a thermal barrier coating and concurrently oxidizing one or more of the substrate, the feedstock, and the thermal barrier coating. The cold spraying is in a region having an oxygen concentration of at least 10%. In another embodiment, the process includes heating a feedstock with a laser and cold spraying a substrate with the feedstock to form a thermal barrier coating. At least a portion of the feedstock is retained in the thermal barrier coating. In another embodiment, the process of fabricating a thermal barrier coating includes heating a substrate with a laser and cold spraying the substrate with a feedstock to form a thermal barrier coating. | 07-25-2013 |
20130230659 | FINE-POROSITY CERAMIC COATING VIA SPPS - A process is provided for producing a fine-pored ceramic layer composed of zirconium oxide or gadolinium zirconate or ytterbium zirconate or europium zirconate or lanthanum zirconate on a substrate and/or on a metallic layer. The process includes spraying at least one water-soluble and dissolved salt. In the process, water soluble salts of zirconium and gadolinium or ytterbium or europium or lanthanum are added for the zirconates. | 09-05-2013 |
20140335281 | FILM-FORMING TREATMENT JIG, PLASMA CVD APPARATUS, METAL PLATE AND OSMIUM FILM FORMING METHOD - In a film-forming treatment jig for forming a thin film on a plate having a through hole of a micro diameter by a single plasma film-forming treatment, the film-forming treatment jig includes: a holding member | 11-13-2014 |
20150017339 | Substrate Structure Grown By Plasma Deposition - Substrate structure comprising a substrate ( | 01-15-2015 |
20150064358 | COATING MATERIAL FOR THERMAL SPRAY COATING, METHOD FOR PREPARING THE SAME, AND METHOD FOR COATING WITH THE SAME - A coating material for a thermal spray coating having corrosion resistance and low reactivity, a preparation method thereof, and a coating method thereof are provided. The coating material for thermal spray coating has a composition of Mg | 03-05-2015 |
20160024634 | METHOD FOR THE MANUFACTURE OF A COATING HAVING A COLUMNAR STRUCTURE - Method for the manufacture of a coating having a columnar structure, preferably a dense structure, in which method a coating material in the form of primary corpuscles is injected with a carrier gas into a thermal process beam. The coating material is transferred into a vapor phase in the process beam and is deposited as a condensate in the form of a columnar coating on a substrate. The primary corpuscles are formed by an agglomerate of particles which are held together by cohesive forces of a connecting medium or by adhesive forces. | 01-28-2016 |
20160040278 | SLURRY FOR THERMAL SPRAYING, THERMAL SPRAYED COATING, AND METHOD FOR FORMING THERMAL SPRAYED COATING - A thermal spray slurry of the present invention contains ceramic particles having an average particle size of 200 nm or more and 5 μm or less. Precipitates formed when 700 mL of the thermal spray slurry is placed in a 16.5-cm-high cylindrical vessel having a volume of 1 L and is allowed to stand still at room temperature for 1 week are made to disappear by disposing, at a temperature of 20° C. or higher and 30° C. or lower, the cylindrical vessel so as for the central axis of the cylindrical vessel to be horizontal and by rotating the cylindrical vessel at a rotation speed of 100 rpm for 120 minutes around the central axis of the cylindrical vessel to stir the thermal spray slurry in the cylindrical vessel. | 02-11-2016 |
20160122856 | METHOD FOR COATING A PARTIAL AREA OF A WORKPIECE AND SCREENING ELEMENT - To allow a simple and thus inexpensive coating of a part surface of a workpiece, it is proposed in accordance with the invention that the screening element ( | 05-05-2016 |
20170233860 | MANUFACTURING METHOD FOR COMPONENT IN PLASMA PROCESSING APPARATUS | 08-17-2017 |
20180023179 | Method for Producing Plug | 01-25-2018 |
427454000 | Superposed diverse or multilayer similar coatings applied | 12 |
20100028549 | Dispersion Strengthened Rare Earth Stabilized Zirconia - In a process for forming a coating on a substrate, a rare earth oxide stabilized zirconia composition is provided. At least one additional constituent is provided comprising titania stabilized with zirconia. The rare earth oxide stabilized zirconia composition and additional constituent are blended to form a blended material. The blended material is deposited onto the substrate. | 02-04-2010 |
20100062173 | THERMAL BARRIER COATING MATERIAL AND METHOD FOR PRODUCTION THEREOF, GAS TURBINE MEMBER USING THE THERMAL BARRIER COATING MATERIAL, AND GAS TURBINE - A thermal barrier coating material, containing a metal binding layer laminated on a base material and ceramic layer laminated on the metal binding layer, the ceramic layer comprising partially stabilized ZrO | 03-11-2010 |
20100104764 | METHOD OF FORMING A CERAMIC THERMAL BARRIER COATING - A ceramic thermal barrier coating ( | 04-29-2010 |
20100323119 | PROCESS FOR THE PREPARATION OF AN ORGANIC FILM AT THE SURFACE OF A SOLID SUPPORT WITH OXIDIZING TREATMENT - The present invention relates to a process for the preparation of an organic film on a portion of the surface of a solid support made of (co)polymer, characterized in that it comprises the successive steps consisting in (i) subjecting said surface portion to an oxidizing treatment and (ii) grafting an organic film to said surface portion by radical chemical grafting. | 12-23-2010 |
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 |
20110151132 | Methods for Coating Articles Exposed to Hot and Harsh Environments - Methods for providing a coating system for reducing CMAS infiltration of substrates exposed to hot and harsh climates. Exemplary methods include optionally disposing a bond coat on a substrate, disposing an inner ceramic layer over the bond coat, or on the substrate in the absence of a bond coat, and disposing an outer alumina-containing layer including up to 50 percent by weight titania, using a high velocity oxygen fuel (HVOF) technique. Additional ceramic layers and alumina-containing layers may be provided to achieve a CMAS resistant coating. One or more suitable heat treatments may be utilized to phase-stabilize the alumina. The coating may be used for gas turbine engine components. Deposition techniques for the ceramic layer(s) may depend on the end use of the component. | 06-23-2011 |
20120308733 | METHOD OF MANUFACTURING A THERMAL BARRIER COATING STRUCTURE - To manufacture a thermal barrier coating structure on a substrate surface, a working chamber having a plasma torch is provided, a plasma jet is generated in that a plasma gas is conducted through the plasma torch and is heated therein by means of electric gas discharge, electromagnetic induction or microwaves, and the plasma jet is directed to the surface of a substrate introduced into the working chamber. To manufacture the thermal barrier coating, a voltage is additionally applied between the plasma torch and the substrate to generate an arc between the plasma torch and the substrate and the substrate surface is cleaned by means of the light arc, wherein the substrate remains in the working chamber after the arc cleaning and an oxide layer is generated on the cleaned substrate surface and a thermal barrier coating is applied by means of a plasma spray process. | 12-06-2012 |
20130017338 | PROCESS FOR FORMING A CERAMIC ABRASIVE AIR SEAL WITH INCREASED STRAIN TOLERANCEAANM Strock; Christopher W.AACI KennebunkAAST MEAACO USAAGP Strock; Christopher W. Kennebunk ME USAANM Richard; Robert D.AACI SpringvaleAAST MEAACO USAAGP Richard; Robert D. Springvale ME USAANM Lemay; StevenAACI WaterboroAAST MEAACO USAAGP Lemay; Steven Waterboro ME US - A plasma spray gun comprises a nozzle, an upstream powder injector, and a downstream powder injector. The upstream powder injector is disposed outside the nozzle and axially adjacent a nozzle outlet. The downstream powder injector is disposed axially downstream of the first upstream powder injector. The downstream powder injector is operative in a first coating mode, and the upstream powder injector is operative in a second coating mode. | 01-17-2013 |
20140272168 | METHOD FOR FABRICATING MULTILAYER ENVIRONMENTAL BARRIER COATINGS - A method of making a multilayer environmental barrier coating for a ceramic matrix composite is provided, comprising the steps of: plasma spray coating an oxide-based bond coat over top of the ceramic matrix composite and depositing a columnar top coat over the oxide-based bond coat. | 09-18-2014 |
20140272169 | METHOD FOR FABRICATING MULTILAYER ENVIRONMENTAL BARRIER COATINGS - A method of making a multilayer environmental barrier coating for a ceramic matrix composite is provided, comprising the steps of: plasma spray coating an oxide-based bond coat over top of the ceramic matrix composite and depositing a columnar top coat over the oxide-based bond coat. | 09-18-2014 |
20140377473 | THERMAL BARRIER COATING SYSTEMS AND PROCESSES THEREFOR - Coating systems and processes by which the coating systems can be deposited to be resistant to contaminants, and particularly resistant to infiltration and damage caused by CMAS. The coating systems include inner and outer ceramic layers, each having a microstructure characterized by splats and horizontal porosity. The inner ceramic layer consists essentially of zirconia stabilized by about 6 to about 9 weight percent yttria. The outer ceramic layer overlies and contacts the inner ceramic layer to define the outermost surface of the coating system. The outer ceramic layer consists essentially of zirconia stabilized by about 25 to about 75 weight percent yttria, has a thickness that is less than the thickness of the inner ceramic layer, and has a porosity level that is lower than that of the inner ceramic layer. | 12-25-2014 |
20160133826 | METHOD OF MAKING LEAD-FREE CERAMIC COATING - A method of making a lead-free ceramic coating is provided. The method includes providing a lead-free ceramic composition with a crystalline phase of perovskite structure. The ceramic composition has a general formula of: (1-a)(K | 05-12-2016 |