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1. (WO2007011226) METHOD FOR PROVIDING A THERMAL BARRIER COATING AND SUBSTRATE HAVING SUCH COATING
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2007/011226 International Application No.: PCT/NL2006/050187
Publication Date: 25.01.2007 International Filing Date: 21.07.2006
IPC:
C23C 30/00 (2006.01) ,C23C 28/00 (2006.01) ,C23C 8/10 (2006.01)
C CHEMISTRY; METALLURGY
23
COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
C
COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
30
Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
C CHEMISTRY; METALLURGY
23
COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
C
COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
28
Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups C23C2/-C23C26/173
C CHEMISTRY; METALLURGY
23
COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
C
COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
8
Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
06
using gases
08
only one element being applied
10
Oxidising
Applicants:
NETHERLANDS INSTITUTE FOR METALS RESEARCH [NL/NL]; Mekelweg 2 NL-2628 CD Delft, NL (AllExceptUS)
NIJDAM, Thijs Joost [NL/NL]; NL (UsOnly)
JEURGENS, Lars Petrus Henricus [NL/DE]; DE (UsOnly)
SLOOF, Willem Gerrit [NL/NL]; NL (UsOnly)
Inventors:
NIJDAM, Thijs Joost; NL
JEURGENS, Lars Petrus Henricus; DE
SLOOF, Willem Gerrit; NL
Agent:
VAN WESTENBRUGGE, Andries; Nederlandsch Octrooibureau Postbus 29720 NL-2502 LS Den Haag, NL
Priority Data:
05106740.322.07.2005EP
Title (EN) METHOD FOR PROVIDING A THERMAL BARRIER COATING AND SUBSTRATE HAVING SUCH COATING
(FR) PROCEDE DE FORMATION D'UN REVETEMENT BARRIERE THERMIQUE ET SUBSTRAT PRESENTANT LEDIT REVETEMENT
Abstract:
(EN) Method for providing a thermal barrier coating and substrate . The thermal barrier coating (5) is provided on a thermally grown oxide (4) which is grown on a metallic bond coating (3) provided on said substrate (1) Adhesion between the bond coating (3) and thermally grown oxide coating (4) is improved by providing projections at the interface of yttriaalumina garnet (4) compounds. Service life at relatively high temperature of the thermally grown oxide coating (4) is improved by having alumina grain (6) with relatively large size. These are obtained by pre-annealing the bond coating (3) in an inert gas atmosphere followed by controlled preoxidation.
(FR) L'invention concerne un procédé de formation d'un revêtement barrière thermique ainsi qu'un substrat. Le revêtement barrière thermique est formé sur un oxyde thermique qui est formé sur un revêtement de liaison métallique formé sur ledit substrat. L'adhésion entre le revêtement de liaison et le revêtement d'oxyde thermique est améliorée par formation de parties saillantes au niveau de l'interface de grenats d'alumine à l'yttrium. La durée utile à température relativement élevée du revêtement d'oxyde thermique est améliorée par obtention de grains d'alumine présentant une taille relativement grande. Lesdits grains sont obtenus par pré-recuisson du revêtement de liaison dans une atmosphère de gaz inerte suivi d'une pré-oxydation contrôlée.
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Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP1907604US20080292873CN101248214