Invention Grant
- Patent Title: Ceramic coating for foundry core
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Application No.: US17266020Application Date: 2019-08-07
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Publication No.: US11752541B2Publication Date: 2023-09-12
- Inventor: Mirna Bechelany , Virginie Jaquet , Amar Saboundji , Mathieu Soulier , Mathieu Boidot , Richard Laucournet
- Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
- Applicant Address: FR Paris
- Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES,SAFRAN
- Current Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES,SAFRAN
- Current Assignee Address: FR Paris; FR Paris
- Agency: Sughrue Mion, PLLC
- Priority: FR 00850 2018.08.07
- International Application: PCT/FR2019/051917 2019.08.07
- International Announcement: WO2020/030881A 2020.02.13
- Date entered country: 2021-02-04
- Main IPC: B22C9/12
- IPC: B22C9/12 ; B22C3/00 ; B22C9/10 ; C04B35/56 ; C09D4/00 ; C04B111/00
Abstract:
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.
Public/Granted literature
- US20210299743A1 CERAMIC COATING FOR FOUNDRY CORE Public/Granted day:2021-09-30
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