Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Schlickerformulierung zur Herstellung von thermischen Schutzschichten
A slurry formulation for production of a patch or a strip of a thermal barrier coating comprises: 20-60 dry weight percent of alkali metal silicate binder; 40-80 dry weight percent of ceramic fillers including at least one ceramic filler selected from yttria-stabilized zirconia and magnesia; 0-20 dry weight percent of additives, where the dry weight percent of the alkali metal silicate binder, the ceramic fillers and the additives add up to 100%; and one of a solvent and suspension agent. Independent claims are: (1) a method for the production of a slurry formulation comprising: adding 40-80 dry weight percent of ceramic fillers including at least one ceramic filler selected from yttria-stabilized zirconia and magnesia to an aqueous solution of alkali metal silicate binder having 20-60 dry weight percent of alkali metal silicate binder; mixing the ceramic filler and the binder to form a suspension; adding 0-20 dry weight percent of additives to the suspension, where the dry weight percent of the alkali metal silicate binder, the ceramic fillers and the additives add up to 100%; and setting the viscosity by adding water; and (2) a method for building up a region of a thermal barrier coating with a slurry formulation comprising: providing a slurry formulation including 20-60 dry weight percent of alkali metal silicate binder, 40-80 dry weight percent of ceramic fillers including at least one of yttria-stabilized zirconia and magnesia, 0-20 dry weight percent of additives, where the dry weight percent of the alkali metal silicate binder, the ceramic fillers and the additives add up to 100%; and one of a solvent and suspension agent; applying a first quantity of the slurry formulation directly to a region of a metallic substrate without a bond coat in a first application step at a thickness of between 0.05 and 0.3 mm; preliminarily drying the first quantity of the slurry formulation; applying a second quantity of the slurry formulation to the dried slurry formulation; drying the second quantity of the slurry formulation; repeating the applying and the drying until a thickness of the slurry formulation is between 0.4 and 1 mm so as to form a coating structure; performing a first drying and hardening step on the coating structure for at least 6 hours at a temperature of between 80 and 100[deg] C; and performing a second drying and hardening step on the coating structure for at least 15 minutes at a temperature of at least 400[deg] C.
Schlickerformulierung zur Herstellung von thermischen Schutzschichten
A slurry formulation for production of a patch or a strip of a thermal barrier coating comprises: 20-60 dry weight percent of alkali metal silicate binder; 40-80 dry weight percent of ceramic fillers including at least one ceramic filler selected from yttria-stabilized zirconia and magnesia; 0-20 dry weight percent of additives, where the dry weight percent of the alkali metal silicate binder, the ceramic fillers and the additives add up to 100%; and one of a solvent and suspension agent. Independent claims are: (1) a method for the production of a slurry formulation comprising: adding 40-80 dry weight percent of ceramic fillers including at least one ceramic filler selected from yttria-stabilized zirconia and magnesia to an aqueous solution of alkali metal silicate binder having 20-60 dry weight percent of alkali metal silicate binder; mixing the ceramic filler and the binder to form a suspension; adding 0-20 dry weight percent of additives to the suspension, where the dry weight percent of the alkali metal silicate binder, the ceramic fillers and the additives add up to 100%; and setting the viscosity by adding water; and (2) a method for building up a region of a thermal barrier coating with a slurry formulation comprising: providing a slurry formulation including 20-60 dry weight percent of alkali metal silicate binder, 40-80 dry weight percent of ceramic fillers including at least one of yttria-stabilized zirconia and magnesia, 0-20 dry weight percent of additives, where the dry weight percent of the alkali metal silicate binder, the ceramic fillers and the additives add up to 100%; and one of a solvent and suspension agent; applying a first quantity of the slurry formulation directly to a region of a metallic substrate without a bond coat in a first application step at a thickness of between 0.05 and 0.3 mm; preliminarily drying the first quantity of the slurry formulation; applying a second quantity of the slurry formulation to the dried slurry formulation; drying the second quantity of the slurry formulation; repeating the applying and the drying until a thickness of the slurry formulation is between 0.4 and 1 mm so as to form a coating structure; performing a first drying and hardening step on the coating structure for at least 6 hours at a temperature of between 80 and 100[deg] C; and performing a second drying and hardening step on the coating structure for at least 15 minutes at a temperature of at least 400[deg] C.
Schlickerformulierung zur Herstellung von thermischen Schutzschichten
Slurry Formation for the Production of Thermal Barrier Coatings
Formule de barbotine pour la fabrication de couches de protection thermiques
NIENBURG HANS-CHRISTOPH (Autor:in) / EROGLU ADNAN (Autor:in) / HÄHNLE HARTMUT (Autor:in)
14.09.2016
Patent
Elektronische Ressource
Deutsch
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