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1. (WO2019030025) LEACHABLE CERAMIC MATERIALS FOR USE IN CASTING
Latest bibliographic data on file with the International BureauSubmit observation

Pub. No.: WO/2019/030025 International Application No.: PCT/EP2018/070503
Publication Date: 14.02.2019 International Filing Date: 27.07.2018
IPC:
B22C 1/00 (2006.01) ,B22C 9/10 (2006.01) ,B22D 29/00 (2006.01) ,C04B 35/117 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
22
CASTING; POWDER METALLURGY
C
FOUNDRY MOULDING
1
Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
B PERFORMING OPERATIONS; TRANSPORTING
22
CASTING; POWDER METALLURGY
C
FOUNDRY MOULDING
9
Moulds or cores; Moulding processes
10
Cores; Manufacture or installation of cores
B PERFORMING OPERATIONS; TRANSPORTING
22
CASTING; POWDER METALLURGY
D
CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
29
Removing castings from moulds, not restricted to casting processes covered by a single main group; Removing cores; Handling ingots
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
35
Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
01
based on oxides
10
based on aluminium oxide
111
Fine ceramics
117
Composites
Applicants:
MORGAN ADVANCED CERAMICS, INC [US/US]; 2425 Whipple Road Hayward, California 94544, US
MORGAN ADVANCED MATERIALS PLC. [GB/GB]; Quadrant 55-57 High Street Windsor Berkshire SL4 1LP, GB (ZW)
Inventors:
LARSON, Eric; US
MCCRACKEN, Douglas; US
POEPPEL, Norman; US
KACHALA, Jennifer; US
Agent:
PHILLIPS & LEIGH LLP; GB
Priority Data:
62/542,41108.08.2017US
Title (EN) LEACHABLE CERAMIC MATERIALS FOR USE IN CASTING
(FR) MATÉRIAUX CÉRAMIQUES SE PRÊTANT À LA LIXIVIATION POUR LE MOULAGE
Abstract:
(EN) Supports for supporting mould parts and/or cores in investment casting, comprise support material comprising:- • a mechanically supportive continuous matrix phase comprising alumina; • at least one second phase interpenetrating the matrix phase and providing a pathway for leachants to penetrate into the material; wherein the support material comprises: in the range of 1 wt% and 12 wt% of the second phase; and less than 15 vol% voids.
(FR) Cette invention concerne des supports pour supporter des parties de moule et/ou des noyaux lors d'un moulage à la cire perdue, comprennent un matériau de support comprenant : • une phase de matrice continue de support mécanique comprenant de l'alumine; • au moins une seconde phase interpénétrant la phase de matrice et fournissant un trajet pour que des agents de lixiviation puissent pénétrer dans le matériau; le matériau de support comprenant : dans la plage de 1 % en poids à 12 % en poids de la seconde phase; et moins de 15 % en volume de vides.
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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 Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (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: English (EN)
Filing Language: English (EN)
Also published as:
EP3468732