Milling Effect and Contamination of Titanium Diboride Powder Using WC-Co Ball-mill

Abstract

Milling effect and contamination of titanium diboride powder by centrifugal-type ball-milling carried out in a WC-Co pot, with WC-Co balls were examined. The average particle-size of the as-recieved powder with 6μm decreased to 2.5μm by ball-milling for 3 hr. However, the contamination quantities of WC, Co and O₂ remarkably increased with the lapse of the milling times.