(19)
(11) EP 2 778 257 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
24.12.2014 Bulletin 2014/52

(43) Date of publication A2:
17.09.2014 Bulletin 2014/38

(21) Application number: 14158148.8

(22) Date of filing: 06.03.2014
(51) International Patent Classification (IPC): 
C23C 24/04(2006.01)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME

(30) Priority: 13.03.2013 US 201313801478

(71) Applicant: General Electric Company
Schenectady, New York 12345 (US)

(72) Inventors:
  • Pabla, Surinder Singh
    Greenville, SC South Carolina 29615 (US)
  • Margolies, Joshua Lee
    Schenectady, NY New York 12345 (US)
  • Calla, Eklavya
    560066 Bangalore, Karnataka (IN)
  • Parakala, Padmaja
    560066 Bangalore, Karnataka (IN)

(74) Representative: Szary, Anne Catherine 
GPO Europe GE International Inc. The Ark 201 Talgarth Road Hammersmith
London W6 8BJ
London W6 8BJ (GB)

   


(54) Process of fabricating thermal barrier coatings


(57) A process of fabricating a thermal barrier coating is disclosed. The process includes cold spraying a substrate (101) with a feedstock (402) to form a thermal barrier coating (102) and concurrently oxidizing one or more of the substrate (101), the feedstock (402), and the thermal barrier coating (102). The cold spraying is in a region (103) having an oxygen concentration of at least 10%. In another embodiment, the process includes heating a feedstock (402) with a laser (411) and cold spraying a substrate (101) with the feedstock (402) to form a thermal barrier coating (102). At least a portion of the feedstock (402) is retained in the thermal barrier coating (102). In another embodiment, the process of fabricating a thermal barrier coating includes heating a substrate (101) with a laser (411) and cold spraying the substrate with a feedstock to form a thermal barrier coating.







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