Bonded abrasive article and method of making

Details Bonded abrasive article and method of making Bonded abrasive article and method of making

B - Operations, Transporting

24

D

B24D 3/00 (2006.01) B24D 3/04 (2006.01) B24D 3/14 (2006.01) C03C 3/00 (2006.01)

Patent

CA 2680750

A bonded abrasive article is provided which includes abrasive grains made of cubic boron nitride within a bond matrix including a silicate. The bonded abrasive further includes a reaction product at the interface between the abrasive grains and bond matrix comprising a transition metal nitride. Further, the invention relates to a manufacturing method comprising providing a glass powder comprising a transition metal oxide compound; combining the glass powder with abrasive grains comprising cubic boron nitride; forming the glass powder and abrasive grains to form a green article; and sintering the green article at a transformation temperature to form abrasive grains in a vitreous bond matrix, the transformation temperature changing the transition metal oxide compound to a transition metal nitride compound at the interface of the abrasive grams and the vitreous bond matrix.

L'invention concerne un article abrasif lié comprenant des grains abrasifs constitués de nitrure de bore cubique au sein d'une matrice de liaison comprenant un silicate. L'abrasif lié comprend en outre un produit de réaction à l'interface entre les grains abrasifs et la matrice de liaison comprenant un nitrure de métal de transition.

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