Hardmetal compositions with novel binder compositions

Details Hardmetal compositions with novel binder compositions Hardmetal compositions with novel binder compositions

C - Chemistry, Metallurgy

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B

C01B 31/30 (2006.01) C01B 21/076 (2006.01) C01B 31/34 (2006.01) C22C 1/05 (2006.01) C22C 29/02 (2006.01) C22C 29/06 (2006.01) C22C 29/08 (2006.01) C22C 29/16 (2006.01)

Patent

CA 2454098

Hardmetal compositions each including hard particles having a first material and a binder matrix having a second, different material comprising rhenium or a Ni-based superalloy. A two-step sintering process may be used to fabricate such hardmetals at relatively low sintering temperatures in the solid-state phase to produce substantially fully-densified hardmetals.

L'invention porte sur des compositions de métaux durs comprenant toutes des particules dures faites d'un premier matériau et d'une matrice de liant d'un deuxième matériau, différent du premier consistant en rhénium ou en un super alliage à base de Ni. Pour la fabrication de ces métaux durs, on peut utiliser un procédé de frittage en deux étapes en phase solide et à une température de frittage relativement basse donnant des métaux durs entièrement densifiés.

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