Wire arc spraying using repetitively pulsed, high temperature gas jets, usually referred to as plasma jets, and generated by capillary discharges, substantially increases the velocity of atomized and entrained molten droplets. The quality of coatings produced is improved by increasing the velocity with...http://www.google.com.au/patents/US6001426?utm_source=gb-gplus-sharePatent US6001426 - High velocity pulsed wire-arc spray
