Dispersion and Compounding Process of Particulate Ag and Fine Ni Powder Using a High-speed/High-shear Mill [Translated]†

Abstract

A dry powder coating method has been applied to develop high-performance contact-materials for the electrical industry. Using a high-speed/high-shear type of mill, the dispersion and compounding process of particulate Ag and nano-meter-size Ni powder were investigated. The transformation of the particles throughout the process was shown by the torque and temperature curves during the treatment in the mill. The optimum operating conditions for both dispersion of fine particles into the matrix and sintering process were discussed based on the physical properties of bulk powders and sintered composite.† This report was originally printed in Journal of the Japan Society of Powder and Powder Metallurgy , 40(3), 299-302 (1993) in Japanese, before being translated into English by KONA Editorial Committee with the permission of the editorial committee of Japan Society of Powder and Powder Metallurgy.