Conferences

Effect of Alternating Electrical Field and Ultrasound on Corrosion of Nanosized Copper Films

A.Andreeva,
  
E.A.Potipaka,
 
A.V.Musiichuk,
 
N.A.Vlasenko,
 
V.M.Karavaeva
 

I. M. Frantsevich Institute for Problems of Materials Science of the NAS of Ukraine, Krzhizhanovsky str., 3, Kyiv, 03142, Ukraine
Powder Metallurgy - Kiev: Frantsevich Institute for Problems of Materials Science NASU, 2014, #09/10
http://www.materials.kiev.ua/article/1307

Abstract

A dependence of nanoscale copper films corrosion speed in water HCl solution from frequency and intensity of alternating electric field and ultrasound, as well as layer´s thickness at these conditions, was investigated. The corrosion speed was calculated by rising of film´s resistance. It was shown, that an influence of alternating field and ultrasound at low intensity (to 5 v/sm and 10 dB accordingly) and frequency (to 200 kHz) leads to diminution of corrosion speed no less than 5 times. The braking of corrosion is caused by drawing of solution ions in oscillation process. The considered influence of alternating field and ultrasound may be used for controlling of nanoscale copper films corrosion speed in practice of the electronics and medicine. The influence of ultrasound is prevalent for films, which thickness is less than 100 nm, because it decreases them high chemical activity.


ALTERNATING FIELD, COPPER, CORROSION, FILMS, ULTRASONICS