An abrasive material for precision surface treatment and a...

B - Operations – Transporting – 24 – D

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B24D 3/00 (2006.01) B24D 3/02 (2006.01) B24D 3/06 (2006.01) B24D 3/28 (2006.01) C01B 31/06 (2006.01) C09K 3/14 (2006.01) C23C 4/04 (2006.01) C23C 14/00 (2006.01) C23C 14/06 (2006.01) C23C 14/20 (2006.01) C23C 14/32 (2006.01) C23C 16/26 (2006.01) C23C 14/02 (2006.01)

Patent

CA 2177170

An abrasive material is proposed which is useful for the precision treatment of surfaces. This material may be in the form of an abrasive layer adhered by chemical and/or physical bonds to a car- rier, the latter preferably made of a flexible material such as plastic. Alternatively, the abrasive material may be in the form of a free abrasive without a carrier. The abrasive material may be in the form of a vacuum condensate consisting of at least 80 atomic percent of an ultradispersed composite su- perhard diamond-like substance, preferably contain- ing carbon, and including not more than 0.1 atomic percent hydrogen and oxygen, combined. The abra- sive material is preferably obtained from the pulse flows of an accelerated electroerosive plasma.

On décrit un matériau abrasif, utile pour le traitement de précision de surfaces, qui peut prendre la forme d'une couche abrasive collée par un produit chimique et/ou des liaisons physiques à un vecteur qui est de préférence réalisé en un matériau souple, une matière plastique par exemple. Ce matériau abrasif peut aussi s'utiliser indépendamment de tout vecteur. Il peut prendre la forme d'un condensat créé sous vide, dont au moins 80 % des atomes représentent une substance composite super-dure ultradispersée semblable au diamant, et contenant de préférence du carbone mais pas plus que 0,1 % d'atomes d'hydrogène et d'oxygène au total. Ce matériau abrasif s'obtient de préférence à partir de flux d'impulsions d'un plasma d'électroérosion accéléré.

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