Preparation of ultra®ne TiC±Ni cermet powders

Abstract
Pure titanium, nickel and carbon powders were mechanically alloyed to synthesize the TiC±Ni cermet powders with ultra®ne
microstructures. As a result of mil领, formation of the ultra®ne TiC or amorphous Ti±Ni phase were obtained, depending on mil领
conditions. The effect of mil领 variables on the synthesizing behaviour of the powders was investigated. The sintered TiC±Ni cermet from
the mechanically alloyed powders contained TiC particles of 0.2±1.5 mm in size as compared with those of 3±5 mm for a commercial
cermet. The spex-mil领 technique of the mechanical alloying process turned out to be more effective in the formation of the ®nal cermet
microstructure than the ball-mil领 one. # 2000 Elsevier Science S.A. All rights reserved.
Keywords: TiC±Ni cermet powders; Mechanical alloying; Spex-mil领 technique SPEX8000D 高能量球磨机