C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 35/52 (2006.01) B23B 27/14 (2006.01) C04B 35/563 (2006.01) C04B 35/573 (2006.01) F41H 5/04 (2006.01)
Patent
CA 2723516
The invention relates to a boron carbide composite material comprising diamond particles and boron carbide, the composite material having a porosity of less than 2 percent by volume. The invention further relates to a method for manufacturing such materials, the method including coating a plurality of diamond particles with boron carbide, combining the plurality of diamond particles to form a green body and subjecting the green body to a temperature in the range from about 1,200 degrees centigrade to about 2,000 degrees centigrade and pressure or vacuum not exceeding about 2,000 Mpa.
La présente invention concerne un matériau composite à base de carbure de bore qui comprend des particules de diamant et du carbure de bore, le matériau composite ayant une porosité inférieure à 2% en volume. Linvention concerne en outre un procédé de fabrication de ces matériaux, le procédé comprenant le revêtement dune pluralité de particules de diamant avec du carbure de bore, la combinaison de la pluralité de particules de diamants pour former un corps cru et la soumission du corps cru à une température dans la plage denviron 1 200°C à environ 2 000°C et à une pression ou un vide nétant pas supérieur à environ 2 000 Mpa.
Abramshe Ronald A.
Naidoo Kaveshini
Ras Anine Hester
Van Staden Frances
Element Six (production) (pty) Ltd
Gowling Lafleur Henderson Llp
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