| Patent application number | Description | Published |
|---|
| 20110027467 | METHODS OF MAKING ENVIRONMENTAL BARRIER COATINGS FOR HIGH TEMPERATURE CERAMIC COMPONENTS USING SINTERING AIDS - Methods for making an environmental barrier coating using a sintering aid including combining at least water, and a primary transition material selected from mullite, BSAS, or a mullite/BSAS mixture to produce a transition layer slurry; applying the transition layer slurry to a ceramic component; drying the component having the applied transition layer slurry; infiltrating a sol-gel solution into the applied transition layer slurry; combining at least water, and a primary outer material of BSAS to produce an outer layer slurry; applying the outer layer slurry to the component having the applied transition layer slurry; and sintering the component to produce the environmental barrier coating having at least a transition layer and an outer layer where the transition layer comprises a porosity of from 0% to about 30% by volume of the transition layer, and the outer layer comprises a porosity of from 0% to about 15% by volume of the outer layer. | 02-03-2011 |
| 20110027469 | METHODS FOR MAKING WATER BASED ENVIRONMENTAL BARRIER COATINGS USING SINTERING AIDS - Methods for making an environmental barrier coating using a sintering aid involving: applying a bond coat layer to the ceramic component; combining at least water, and a primary transition material selected from a rare earth disilicate, or a doped rare earth disilicate to produce a transition layer slurry; applying the transition layer slurry to the bon coat layer; drying the component having the applied transition layer slurry; infiltrating a sol-gel solution including an aqueous solution of a water soluble salt sintering aid, or an organic solvent solution of a solvent soluble salt sintering aid into the applied slurry; and sintering the component to produce the environmental barrier coating having at least the bond coat layer, and a transition layer wherein during sintering a reaction between the primary transition material and the sintering aid results in the transition layer having a porosity of from 0% to about 15% by volume of the transition layer. | 02-03-2011 |
| 20110027470 | METHODS FOR MAKING ENVIRONMENTAL BARRIER COATINGS USING SINTERING AIDS - Methods for making an environmental barrier coating using a sintering aid involving applying a bond coat layer to the ceramic component; combining at least an organic solvent, a primary transition material selected from a rare earth disilicate, or a doped rare earth disilicate, and at least one slurry sintering aid to produce a transition layer slurry; combining at least an organic solvent, and a primary outer material selected from a rare earth monosilicate or a doped rare earth monosilicate to produce an outer layer slurry; combining at least an organic solvent, and a primary compliant material comprising BSAS or a rare earth doped BSAS to produce a compliant layer slurry; applying at least the transition layer slurry, and any one or more of the outer layer slurry, and the compliant layer slurry to the component; and sintering the component to produce the environmental barrier coating having at least the bond coat layer, a transition layer and any of an outer layer or a compliant layer whereby a reaction between the primary materials and the slurry sintering aid results in the transition layer having a porosity of from 0% to about 15% by volume of the transition layer, the outer layer having a porosity of from 0% to about 30% by volume of the outer layer, and the compliant layer having a porosity of from about 0% to about 30% by volume of the compliant layer. | 02-03-2011 |
| 20110027476 | METHOD FOR MAKING SOLVENT BASED ENVIRONMENTAL BARRIER COATINGS USING SINTERING AIDS - Methods for making an environmental barrier coating using a sintering aid including combining at least an organic solvent, and a primary transition material such as a rare earth disilicate, or a doped rare earth disilicate to produce a transition layer slurry; applying the transition layer slurry to the component; drying the component having the applied transition layer slurry; infiltrating a sol-gel solution containing an aqueous solution of a water soluble salt sintering aid, or an organic solvent solution of a solvent soluble salt sintering aid into the applied slurry; and sintering the component to produce the environmental barrier coating having at least the bond coat layer, and a transition layer wherein during sintering, a reaction between the primary transition material and the sintering aid results in the transition layer having a porosity of from 0% to about 15% by volume of the transition layer. | 02-03-2011 |
| 20110027484 | METHODS FOR MAKING ENVIRONMENTAL BARRIER COATINGS USING SINTERING AIDS - Methods for making an environmental barrier coating using a sintering aid involving: applying a bond coat layer to the ceramic component; combining at least water, a primary transition material selected from a rare earth disilicate, or a doped rare earth disilicate, and at least one slurry sintering aid to produce a transition layer slurry; combining at least water, and a primary outer material selected from a rare earth monosilicate or a doped rare earth monosilicate to produce an outer layer slurry; combining at least water, and a primary compliant material of BSAS or a rare earth doped BSAS to produce a compliant layer slurry; applying at least the transition layer slurry, and any one or more of the outer layer slurry, and the compliant layer slurry to the component; and sintering the component to produce the environmental barrier coating having at least the bond coat layer, a transition layer and any of an outer layer or a compliant layer where a reaction between the primary materials and the slurry sintering aid results in the transition layer having a porosity of from 0% to about 15% by volume of the transition layer, the outer layer having a porosity of from 0% to about 30% by volume of the outer layer, and the compliant layer having a porosity of from about 0% to about 30% by volume of the compliant layer. | 02-03-2011 |
| 20110027517 | METHODS OF IMPROVING SURFACE ROUGHNESS OF AN ENVIRONMENTAL BARRIER COATING AND COMPONENTS COMPRISING ENVIRONMENTAL BARRIER COATINGS HAVING IMPROVED SURFACE ROUGHNESS - Methods for improving surface roughness of an environmental barrier coating including providing a component having a plasma sprayed environmental barrier coating; applying a slurry to the environmental barrier coating of the component, the slurry being a transition layer slurry or an outer layer slurry; drying the environmental barrier coating having the applied slurry; and sintering the component to produce a component having an improved surface roughness where the slurry includes a solvent; a primary transition material, or a primary outer material; and a slurry sintering aid selected from iron oxide, gallium oxide, aluminum oxide, nickel oxide, titanium oxide, boron oxide, alkaline earth oxides, carbonyl iron, iron metal, aluminum metal, boron, nickel metal, iron hydroxide, gallium hydroxide, aluminum hydroxide, nickel hydroxide, titanium hydroxide, alkaline earth hydroxides, iron carbonate, gallium carbonate, aluminum carbonate, nickel carbonate, boron carbonate, alkaline earth carbonates, iron oxalate, gallium oxalate, aluminum oxalate, nickel oxalate, titanium oxalate, solvent soluble iron salts, solvent soluble gallium salts, solvent soluble aluminum salts, solvent soluble nickel salts, solvent titanium salts, solvent soluble boron salts, and solvent soluble alkaline earth salts. | 02-03-2011 |
| 20110027556 | SLURRY COMPOSITIONS FOR MAKING ENVIRONMENTAL BARRIER COATINGS AND ENVIRONMENTAL BARRIER COATINGS COMPRISING THE SAME - Slurry compositions for making an environmental barrier coating including from about 9 wt % to about 81 wt % water; from about 3 wt % to about 72 wt % primary material; and from about 0.1 wt % to about 18 wt % slurry sintering aid, and environmental barrier coatings including such compositions. | 02-03-2011 |
| 20110027557 | SOLVENT BASED ENVIRONMENTAL BARRIER COATINGS FOR HIGH TEMPERATURE CERAMIC COMPONENTS - Environmental barrier coatings for high temperature ceramic components including a bond coat layer; an optional silica layer; and at least one transition layer including: from about 85% to about 100% by volume of the transition layer of a primary transition material including a rare earth disilicate, or a doped rare earth disilicate; and from 0% to about 15% by volume of the transition layer of a secondary material selected from Fe | 02-03-2011 |
| 20110027558 | SOLVENT BASED SLURRY COMPOSITIONS FOR MAKING ENVIRONMENTAL BARRIER COATINGS AND ENVIRONMENTAL BARRIER COATINGS COMPRISING THE SAME - Organic solvent based slurry compositions for making an environmental barrier coating including from about 6.8 wt % to about 96.1 wt % solvent; from about 3.9 wt % to about 93.2 wt % primary material; and from about 0.01 wt % to about 20 wt % slurry sintering aid. | 02-03-2011 |
| 20110027559 | WATER BASED ENVIRONMENTAL BARRIER COATINGS FOR HIGH TEMPERATURE CERAMIC COMPONENTS - Environmental barrier coatings for high temperature ceramic components including: a bond coat layer; an optional silica layer; and at least one transition layer including: from about 85% to about 100% by volume of the transition layer of a primary transition material selected from a rare earth disilicate, or a doped rare earth disilicate; and from 0% to about 15% by volume of the transition layer of a secondary material selected from Fe | 02-03-2011 |
| 20110027578 | WATER BASED SLURRY COMPOSITIONS FOR MAKING ENVIRONMENTAL BARRIER COATINGS AND ENVIRONMENTAL BARRIER COATINGS COMPRISING THE SAME - Water based slurry compositions for making an environmental barrier coating including from about 1 wt % to about 99.9 wt % water; from about 0.1 wt % to about 72 wt % primary material; and from about 0.1 wt % to about 25 wt % slurry sintering aid. | 02-03-2011 |
