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1. (WO2005013297) NITRIDED VALVE METAL MATERIAL AND METHOD OF MAKING SAME
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2005/013297    International Application No.:    PCT/US2004/024144
Publication Date: 10.02.2005 International Filing Date: 28.07.2004
IPC:
C23C 8/34 (2006.01)
Applicants: CABOT CORPORATION [US/US]; Two Seaport Lane, Suite 1300, Boston, MA 02210-2019 (US) (For All Designated States Except US).
YUAN, Shi [US/US]; (US) (For US Only)
Inventors: YUAN, Shi; (US)
Agent: FOLLETT, Robert, J.; Cabot Corporation, 157 Concord Road, Billerica, MA 01821-7001 (US)
Priority Data:
60/490,494 28.07.2003 US
Title (EN) NITRIDED VALVE METAL MATERIAL AND METHOD OF MAKING SAME
(FR) MATERIAU A BASE DE METAL VALVE NITRURE ET PROCEDE DE FABRICATION CORRESPONDANT
Abstract: front page image
(EN)Valve metal material, including a valve metal, a nitride layer located on the valve metal, and an oxide layer located on the nitride layer is described. Methods of forming such a valve metal material are also described. The method includes forming an oxide layer onto the valve metal and then forming a nitride layer between the oxide layer and the valve metal.
(FR)L'invention concerne un matériau à base de métal valve comprenant notamment un métal valve, une couche de nitrure située sur le métal valve, et une couche d'oxyde située sur la couche de nitrure. L'invention concerne également des procédés de formation d'un tel matériau à base de métal valve. Le procédé consiste à former une couche d'oxyde sur le métal valve, puis à former une couche de nitrure entre la couche d'oxyde et le métal valve.
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, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (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, IT, LU, 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)