Method of abrading with boron suboxide (bxo) and the boron...

B - Operations – Transporting – 24 – C

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B24C 11/00 (2006.01) B24C 3/00 (2006.01) B24D 3/14 (2006.01) B24D 3/34 (2006.01) C09K 3/14 (2006.01)

Patent

CA 2120872

ABSTRACT OF THE DISCLOSURE A method of removing material from a surface comprising abrading a surface comprising the step of abrading a surface with an abrasive tool or an abrasive powder comprising a boron suboxide (BxO) composition, wherein during the abrading step the boron suboxide (BxO) composition is maintained at low temperatures. The abrasive which is from the boron suboxide (BxO) family of compounds exhibits an unexpectedly high quality of abrading comparable with the highest quality particulate natural and synthetic diamond, which has a hardness about double that of the boron suboxide (BxO) of the present invention. Further, the invention includes a lapping and polishing powder and lapping slurry wherein the powder is made from a dense, finely crystalline boron suboxide material with a Knoop hardness KHN100 of at least about 2800 kg/mm2 and preferably at least 3800 kg/mm2.

Divulgation d'une méthode pour enlever du matériel sur une surface, consistant à abraser une surface, en particulier avec un outil abrasif ou une poudre abrasive comprenant une composition à base de sous-oxyde de bore (BxO). Pendant l'abrasion, la composition à base de sous-oxyde de bore (BxO) est maintenue à de basses températures. L'abrasif qui appartient à la famille des composés à base de sous-oxyde de bore (BxO) se distingue par sa qualité abrasive exceptionnellement élevée comparable à celle des particules de diamant naturel et synthétique de la meilleure qualité, le diamant étant environ deux fois plus dur que le sous-oxyde de bore (BxO) dévoilé. De plus, l'invention inclut une poudre à rodage et à polissage et une boue à rodage dans laquelle la poudre est fabriquée à partir d'une matière dense, finement cristalline à base de sous-oxyde de bore ayant une dureté Knoop (KHN100) d'au moins environ 2 800 kg/mm2 et, de préférence, d'au moins 3 800 kg/mm2.

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