Dispersion and Compounding Process of Particulate Ag-Ni Alloy and Fine WC Powder Using a High-speed Elliptical-rotor-type Powder Mill

Abstract

Using a high-speed elliptical-rotor-type powder mill, the dispersion and compounding process of particulate Ag-Ni alloy and nano-scale WC powder were investigated. This type of powder mill gives the powders a strong shear force periodically at the narrow clearance between the vessel and the rotor tip. Therefore, controllability of the granule growth with plastic deformation throughout the process was expected. The effects of the operating conditions on the dispersion and compounding processes have been discussed by mean of colorimetric method, X-ray diffraction and Scanning electron microscopy (SEM).