Invention Grant
- Patent Title: Method for producing spray powders containing chromium nitride
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Application No.: US14761006Application Date: 2014-01-23
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Publication No.: US10695839B2Publication Date: 2020-06-30
- Inventor: Benno Gries , Bernhard Bruening
- Applicant: H.C. STARCK SURFACE TECHNOLOGY AND CERAMIC POWDERS GMBH
- Applicant Address: DE Munich
- Assignee: H.H. STARCK SURFACE TECHNOLOGY AND CERAMIC POWDERS GMBH
- Current Assignee: H.H. STARCK SURFACE TECHNOLOGY AND CERAMIC POWDERS GMBH
- Current Assignee Address: DE Munich
- Agent Norman B. Thot
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@53ab0380
- International Application: PCT/EP2014/051324 WO 20140123
- International Announcement: WO2014/114714 WO 20140731
- Main IPC: B22F9/02
- IPC: B22F9/02 ; C22C32/00 ; C22C29/16 ; B22F1/00 ; C22C1/05 ; C22C30/00 ; C23C4/10 ; B22F5/02

Abstract:
A process for producing a sintered spraying powder comprising chromium nitride includes producing a powder mixture comprising a first powder and a second powder, and sintering the powder mixture to the sintered spraying powder at a nitrogen partial pressure of >1 bar so as to maintain or increase a chemically bound nitrogen in the sintered spraying powder compared to a chemically bound nitrogen in the first powder mixture. The first powder comprises at least one constituent selected from the group consisting of Cr, CrN and Cr2N. The second powder comprises at least one constituent selected from the group consisting of nickel, cobalt, nickel alloys, cobalt alloys and iron alloys.
Public/Granted literature
- US20160001368A1 METHOD FOR PRODUCING SPRAY POWDERS CONTAINING CHROMIUM NITRIDE Public/Granted day:2016-01-07
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