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1. (WO2018127664) PART COMPRISING A SUBSTRATE AND AN ENVIRONMENTAL BARRIER
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Pub. No.: WO/2018/127664 International Application No.: PCT/FR2018/050019
Publication Date: 12.07.2018 International Filing Date: 04.01.2018
IPC:
C04B 41/87 (2006.01) ,C04B 41/89 (2006.01) ,F01D 5/28 (2006.01)
C CHEMISTRY; METALLURGY
04
CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
B
LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
41
After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
80
of only ceramics
81
Coating or impregnating
85
with inorganic materials
87
Ceramics
C CHEMISTRY; METALLURGY
04
CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
B
LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
41
After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
80
of only ceramics
81
Coating or impregnating
89
for obtaining at least two superposed coatings having different compositions
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
D
NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
5
Blades; Blade-carrying members; Heating, heat-insulating, cooling, or antivibration means on the blades or the members
12
Blades
28
Selecting particular materials; Measures against erosion or corrosion
Applicants:
SAFRAN CERAMICS [FR/FR]; Les Cinq Chemins, Rue de Touban 33185 LE HAILLAN, FR
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE [FR/FR]; 3 Rue Michel Ange 75016 PARIS, FR
UNIVERSITE DE BORDEAUX [FR/FR]; 35 place Pey Berland 33000 BORDEAUX, FR
Inventors:
PIN, Lisa; FR
ARNAL, Simon; FR
REBILLAT, Francis; FR
MAUVY, Fabrice; FR
Agent:
LAIK, Eric; FR
DESORMIERE, Pierre-Louis; FR
DAVID, Alain; FR
HEALY, Erwan; FR
Priority Data:
175012606.01.2017FR
Title (EN) PART COMPRISING A SUBSTRATE AND AN ENVIRONMENTAL BARRIER
(FR) PIECE COMPRENANT UN SUBSTRAT ET UNE BARRIERE ENVIRONNEMENTALE
Abstract:
(EN) The invention relates to a part (1) comprising a substrate (3) with at least one portion made of a silicon-containing material adjacent to a substrate surface (S) and an environmental barrier (2) formed on the substrate surface and comprising at least one first layer (7) comprising: at least 70% to 99.9% by moles of a rare earth disilicate of formula REa 2SiO7, where REa is a rare earth element, and 0.1% to 30% by moles of at least one rare earth oxide of formula REbO3, where REb is a rare earth element other than REa.
(FR) L'invention concerne une pièce (1) comprenant un substrat (3), dont au moins une partie adjacente à une surface (S) du substrat est en un matériau contenant du silicium, et une barrière environnementale (2) formée sur la surface du substrat, la barrière environnementale comprenant au moins une première couche (7) comprenant : un disilicate de terre rare de formule REa2SiO7 présent en une teneur molaire comprise entre 70% et 99,9%, où REa est un élément terre rare, et au moins un oxyde de terre rare de formule REbO3 présent en une teneur molaire comprise entre 0,1% et 30%, où REb est un élément terre rare différent de REa.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, 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, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: French (FR)
Filing Language: French (FR)