METHOD FOR APPLYING METALLIC COATINGS ONTO PARTICLES OF POWDERED ABRASIVE MATERIALS Russian patent published in 2001 - IPC

FIELD: application of metallic coatings onto particles of powdered abrasive materials such as diamond, boron nitride for making different type tools of such materials. SUBSTANCE: method for applying metallic coatings onto particles of powdered abrasive materials includes thermal dissociation of vapors of carbonyls of elements of VI-VIII groups in flow of inert gas and comprises steps of applying onto preliminarily applied first metallic layer second layer of carbonyl mixture while using as one of carbonyls carbonyl applied as preliminary first layer and as second carbonyl - ferrum pentacarbonyl. Process for applying second layer is realized at temperature 250-400 C in order to enhance adhesion degree of powered abrasive materials with binder at making abrasive tools. EFFECT: increased service life period of abrasive tools. 4 cl, 1 tbl, 1 ex