Studies on the oxygen pick-up of vibratory disc milled capacitor grade tantalum powder

摘要

The oxygen concentration of tantalum powder is critical for the fabrication of solid electrolyte tantalum capacitors. In the present paper an attempt has been made to study the influence of milling time, milling speed (rotations per minute (RPM)) of the vibratory disc mill and average particle size of tantalum powder on oxygen concentrations. It was observed that milling time,is directly related to the oxygen content of the powder mass. However, the rotational speed of the mill also contributes to the particle size distribution and ambience gas content of the particles. [References: 5]