CERAMIC PART FOR CORROSION-RESISTANT GAS TURBINE

PROBLEM TO BE SOLVED: To provide a ceramic part for a corrosion-resistant gas turbine capable of restraining the consumption by corrosion even if used at a part where the combustion gas of a gas turbine directly comes in contact, and capable of preventing the release of coating layer located on a su...

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Bibliographische Detailangaben
Hauptverfasser:	YURI ISAO, HISAMATSU NOBORU, TSURUZONO SUKEZOU, FUKUTOME TAKEO
Format:	Patent
Sprache:	eng
Schlagworte:	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
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a ceramic part for a corrosion-resistant gas turbine capable of restraining the consumption by corrosion even if used at a part where the combustion gas of a gas turbine directly comes in contact, and capable of preventing the release of coating layer located on a substrate even if exposed to the heat cycle environment in the gas turbine. SOLUTION: This is a ceramic part for corrosion-resistant gas turbine used at a part where the combustion gas of the gas turbine directly comes in contact, and it is a laminate of a ceramic substrate 2 mainly composed of silicon nitride, a close adhesion promoting layer 3, a stress relaxation layer 4, a crack development preventive layer 5, and a surface corrosion-resistant layer 6 mainly composed of zirconia stabilized with a group 3a element of the periodical table in this order from the bottom, and the coefficients of thermal expansion of each layers have a certain relation. COPYRIGHT: (C)2006,JPO&NCIPI