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Machine translation
1. (WO1979000089) PROCESS FOR THE PREPARATION OF A MATERIAL BASED ON METAL CARBIDES
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1979/000089    International Application No.:    PCT/EP1978/000004
Publication Date: 22.02.1979 International Filing Date: 27.07.1978
IPC:
C01B 31/34 (2006.01), C04B 35/56 (2006.01), C22C 29/06 (2006.01), H01M 4/90 (2006.01)
Applicants:
Inventors:
Priority Data:
9725/77 09.08.1977 CH
Title (EN) PROCESS FOR THE PREPARATION OF A MATERIAL BASED ON METAL CARBIDES
(FR) PROCEDE POUR LA PREPARATION D"UN MATERIAU A BASE DE CARBURES METALLIQUES
Abstract: front page image
(EN)A process for the preparation of an extrahard material based on tungsten and molybdenum carbides and having a hexagonal crystal structure identical with that of tungsten carbide. According to this process, one heats between 1000 C and a temperature Tx, which is lower than the maximum stability limit of the MoxW1-xC phase wherein 0.01 x 1, a mixture, intimate to the molecular or atomic scale, of tungsten and molybdenum the total content of which in Fe, Ni and Co does not exceed 0.1% with carbon and/or a carbon compound. Tx is defined as follows: For 0.01 < x < 0.8, Tx = 2700 - 1375x C; For 0.8 < x < 1, Tx = 3400 - 2250x C.
(FR)Un procede pour la preparation d"un materiau extra-dur a base de carbures de tungstene et de molybdene et ayant une structure cristalline hexagonale identique a celle du carbure de tungstene. Selon ce procede, l"on chauffe entre 1000 C et une temperature Tx, inferieure a la limite de stabilite maximum de la phase MoxW1-xC, ou 0.01 x 1, un melange moleculaire ou atomique de tungstene et de molybdene dont le contenu total en Fe, Ni et Co ne depasse pas 0,1%, avec du carbone et/ou un compose carbone. Tx est definie comme suit: Pour 0,01 < x < 0,8, Tx = 2700 - 1375x C; Pour 0,8 < x < 1, Tx = 3400 - 2250x C.
Designated States:
Publication Language: German (DE)
Filing Language: German (DE)