METHOD OF MAKING ENVIRONMENTAL BARRIER COATING FOR HIGH TEMPERATURE CERAMIC COMPONENT USING SINTERING AID
PROBLEM TO BE SOLVED: To provide an environmental barrier coating for protecting CMC (ceramic matrix composite) from a high temperature water vapor environment present in a gas turbine engine. SOLUTION: The environmental barrier coating 12 is made through processes: mixing at least water, and a prim...
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| creator | BOUTWELL BRETT A KIRBY GLEN HAROLD |
| description | PROBLEM TO BE SOLVED: To provide an environmental barrier coating for protecting CMC (ceramic matrix composite) from a high temperature water vapor environment present in a gas turbine engine. SOLUTION: The environmental barrier coating 12 is made through processes: mixing 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 10; mixing 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 16 and an outer layer 18, wherein after at least one of the transition layer slurry or the external layer slurry is applied, the component is dried, and a sol-gel solution is infiltrated into at least one layer, and the transition layer has a porosity of 0 to about 30% by volume, and the outer layer has a porosity of 0 to about 15% by volume. COPYRIGHT: (C)2011,JPO&INPIT |
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SOLUTION: The environmental barrier coating 12 is made through processes: mixing 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 10; mixing 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 16 and an outer layer 18, wherein after at least one of the transition layer slurry or the external layer slurry is applied, the component is dried, and a sol-gel solution is infiltrated into at least one layer, and the transition layer has a porosity of 0 to about 30% by volume, and the outer layer has a porosity of 0 to about 15% by volume. 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SOLUTION: The environmental barrier coating 12 is made through processes: mixing 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 10; mixing 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 16 and an outer layer 18, wherein after at least one of the transition layer slurry or the external layer slurry is applied, the component is dried, and a sol-gel solution is infiltrated into at least one layer, and the transition layer has a porosity of 0 to about 30% by volume, and the outer layer has a porosity of 0 to about 15% by volume. 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SOLUTION: The environmental barrier coating 12 is made through processes: mixing 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 10; mixing 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 16 and an outer layer 18, wherein after at least one of the transition layer slurry or the external layer slurry is applied, the component is dried, and a sol-gel solution is infiltrated into at least one layer, and the transition layer has a porosity of 0 to about 30% by volume, and the outer layer has a porosity of 0 to about 15% by volume. COPYRIGHT: (C)2011,JPO&INPIT</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | AIR INTAKES FOR JET-PROPULSION PLANTS ARTIFICIAL STONE BLASTING CEMENTS CERAMICS CHEMISTRY COMBUSTION APPARATUS COMBUSTION ENGINES COMBUSTION PROCESSES COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS ENGINE PLANTS IN GENERAL GAS-TURBINE PLANTS GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGHVELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING LIME, MAGNESIA MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING METALLURGY NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES REFRACTORIES SLAG STEAM ENGINES TREATMENT OF NATURAL STONE WEAPONS |
| title | METHOD OF MAKING ENVIRONMENTAL BARRIER COATING FOR HIGH TEMPERATURE CERAMIC COMPONENT USING SINTERING AID |
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