Method of coating a ceramic body
AssigneeSandvik AB
InventorMarianne Collin
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Abstract
There is now provided a method of manufacturing a coated ceramic body with improved performance when used as a tool insert for metal cutting purposes. By subjecting the body after the coating to a hot isostatic pressing operation at a pressure of 10-300 MPa and a temperature of >1200.degree. C., an improved adherence of the coating has been achieved. The method is particularly applicable to whisker-reinforced ceramic composites.
Claims12
A method of manufacturing a coated ceramic body comprising forming and sintering a body of a ceramic to essentially final dimensions and full density, optionally grinding said sintered body to final dimensions compensating for the coating to be applied, coating said ceramic body with a wear resistant surface coating and subjecting said coated body to a hot isostatic pressing operation at a pressure of 10-300 MPa and a temperature of >1200.degree. C.
Dependencies are inferred from the claim text.