Ceramic coating for foundry core

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United States of America Patent

PATENT NO 11752541
APP PUB NO 20210299743A1
SERIAL NO

17266020

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Abstract

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A process for coating a refractory alloy part is provided and includes coating an area of a refractory alloy part by means of a treatment composition including a type of preceramic polymer and a solvent, and heat treating the part coated with the treatment composition. The heat treating partially converts the preceramic polymer and forms a ceramic coating obtained by conversion, the ceramic coating protecting the refractory alloy from oxidation. The treatment composition also includes active fillers to form an alloy coating on a surface of the part by solid diffusion in addition to the ceramic coating obtained by conversion, and the alloy coating generates a protective oxide layer when subjected to oxidizing conditions.

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Patent Owner(s)

Patent OwnerAddress
COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESPARIS
SAFRANPARIS

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bechelany, Mirna Moissy-Cramayel, FR 11 7
Boidot, Mathieu Gieres, FR 6 8
Jaquet, Virginie Moissy-Cramayel, FR 18 4
Laucournet, Richard La Buisse, FR 15 68
Saboundji, Amar Moissy-Cramayel, FR 19 3
Soulier, Mathieu Saint Jean de Moirans, FR 7 7

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