Investigations on pulsed power application for nano-material consolidation

The present study investigates the effects of high voltage impulses and low frequency high current pulses on Ni powder compacts and on alloys like Ni₈₀Si₂₀ or Ni₉₅Si₅. An increase in density has been observed due to pulse application on samples of ball milled Ni powder and Ni₈₀Si₂₀. It is suggested that pulse application along with simultaneous pressure application be employed in field assisted sintering techniques like SPS and EDC. These alternative novel methods are proving better than conventional sintering methods like hot isostatic pressing and cold isostatic methods.