CERMETS A BASE DE BORURES DES METAUX DE TRANSITION, LEUR FABRICATION ET LEURS APPLICATIONS

PCT No. PCT/FR92/00595 Sec. 371 Date Feb. 26, 1993 Sec. 102(e) Date Feb. 26, 1993 PCT Filed Jun. 26, 1992 PCT Pub. No. WO93/00452 PCT Pub. Date Jan. 7, 1993.A cermet useful in the fabrication of metal cutting, rockdrilling and mineral tools, as well as wear parts. The cermet comprises (i) a hard pha...

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Hauptverfasser: CASTRO FERNANDEZ FRANCISCO, OTTAVI LAURENT, ALBAJAR MANUEL, ALLIBERT COLETTE, PASTOR HENRI
Format: Patent
Sprache:fre
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Zusammenfassung:PCT No. PCT/FR92/00595 Sec. 371 Date Feb. 26, 1993 Sec. 102(e) Date Feb. 26, 1993 PCT Filed Jun. 26, 1992 PCT Pub. No. WO93/00452 PCT Pub. Date Jan. 7, 1993.A cermet useful in the fabrication of metal cutting, rockdrilling and mineral tools, as well as wear parts. The cermet comprises (i) a hard phase of a simple boride of a transition metal, a mixture of simple borides of transition metals, or a mixed boride of transition metals; (ii) a binder phase of Fe, Ni, Co, Cr, or alloys thereof; (iii) a dispersion of particles of oxides of transition metals in which the oxygen can be replaced by nitrogen and/or carbon; and (iv) a dispersion of oxides of metals chosen from aluminum and Group IIA and IIIA metals.