OXIDATION OF TAYLOR CONE-SHAPED ASPERITIES BY APPLICATION OF PLASMA IN NORMAL CONDITION

Abstract

This paper refers on experimental investigations of the conductive surface treatment by applying electric discharges in impulse. We have particularly focused on the modifications of metal surface micro-geometry that leads to formation of Taylor cone shaped asperities. We have established and presented the best energetic conditions of extracting the latter from cylindrical and flat pieces made of W+10 % Re by electrical discharges in impulse. The process of extraction of cones was followed by formation of oxide nano-films. Next research is oriented on chemical analysis of oxide nano-films on the Taylor cone surfaces.

Keywords

• electrode spots
• Taylor cones
• chemical analysis
• nano-oxide
• plasma