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1. (WO2006085635) TANTALUM CARBIDE-COVERED CARBON MATERIAL AND PROCESS FOR PRODUCING THE SAME
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2006/085635    International Application No.:    PCT/JP2006/302418
Publication Date: 17.08.2006 International Filing Date: 07.02.2006
IPC:
C04B 41/87 (2006.01), C04B 41/89 (2006.01), C23C 16/32 (2006.01), C23C 16/56 (2006.01)
Applicants: Toyo Tanso Co., Ltd. [JP/JP]; 7-12, Takeshima 5-chome, Nishiyodogawa-ku, Osaka-shi, Osaka 5550011 (JP) (For All Designated States Except US).
FUJIWARA, Hirokazu [JP/JP]; (JP) (For US Only).
YAMADA, Norimasa [JP/JP]; (JP) (For US Only).
ABE, Yoshihisa [JP/JP]; (JP) (For US Only)
Inventors: FUJIWARA, Hirokazu; (JP).
YAMADA, Norimasa; (JP).
ABE, Yoshihisa; (JP)
Agent: TAKASHIMA, Hajime; Meiji Yasuda Seimei Osaka Midosuji Bldg. 1-1, Fushimimachi 4-chome, Chuo-ku Osaka-shi, Osaka 541-0044 (JP)
Priority Data:
2005-036838 14.02.2005 JP
2005-179866 20.06.2005 JP
2005-255744 02.09.2005 JP
Title (EN) TANTALUM CARBIDE-COVERED CARBON MATERIAL AND PROCESS FOR PRODUCING THE SAME
(FR) MATERIAU DE CARBONE RECOUVERT DE CARBURE DE TANTALE ET SON PROCEDE DE PRODUCTION
(JA) 炭化タンタル被覆炭素材料およびその製造方法
Abstract: front page image
(EN)This invention provides a tantalum carbide-covered carbon material, which has excellent corrosion resistance to reducing gases and thermal shock resistance at high temperatures, and a process for producing the same. The tantalum carbide-covered carbon material comprises a carbon base material and a covering film provided on the carbon base material directly or through an intermediate layer. The covering film is formed of a large number of densely aggregated fine crystals of tantalum carbide. Preferably, the covering film exhibits such an X-ray diffraction pattern that the diffraction intensity based on (220) face of tantalum carbide is the highest intensity. More preferably, this diffraction intensity is not less than four times higher than the second highest diffraction intensity.
(FR)L'invention porte: sur un matériau de carbone recouvert de carbure de tantale offrant une excellente résistance à la corrosion par les gaz réducteurs, et aux chocs thermiques à haute température, et sur son procédé de production. Ledit matériau comporte une base de carbone et un film de revêtement appliqué sur la base directement ou par l'intermédiaire d'une couche intermédiaire. Le film de revêtement qui consiste en un grand nombre de fins cristaux de carbure de tantale densément agrégés, présente de préférence un réseau de diffraction aux rayons X tel que l'intensité de diffraction (220) de la surface de carbure de tantale présente la plus forte intensité, et pas moins de quatre fois plus que l'intensité de diffraction venant en second.
(JA)本発明の課題は、高温において、還元性ガスに対する優れた耐食性および耐熱衝撃性を有する炭化タンタル被覆炭素材料およびその製造方法を提供することである。本発明によれば、炭素基材と、前記炭素基材上に、直接的にまたは中間層を介して形成される被覆膜とを有する炭化タンタル被覆炭素材料が提供される。被覆膜は、炭化タンタルの多数の微結晶が緻密に集合して形成されていて、好ましくは被覆膜のX線回折パターンにおいて、炭化タンタルの(220)面に基く回折強度が最大の強度を示し、より好ましくは、前記回折強度は2番目に大きな強度の回折強度の4倍以上の強度を示す。
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, KM, KN, KP, KR, KZ, 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, RU, SC, SD, SE, SG, SK, SL, SM, 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, 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: Japanese (JA)
Filing Language: Japanese (JA)