Effects of ultrasonic irradiation on the properties of coatings obtained by electroless plating and electro plating

This paper deals with the effects of ultrasonic irradiation on electroless copper coating i.e. metallic deposition on non-conductive substrates and on electroplating on metallic substrates. Ultrasonic irradiation was both applied during activation (surface preparation for the electroless coating) an...

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Bibliographic Details
Published in:Ultrasonics sonochemistry 2005, Vol.12 (1), p.13-19
Main Authors: Touyeras, F., Hihn, J.Y., Bourgoin, X., Jacques, B., Hallez, L., Branger, V.
Format: Article
Language:English
Subjects:
Adsorption
Dose-Response Relationship, Radiation
Electrodes
Electroless coating
Electroplating
Electroplating - methods
Internal stress
Materials Testing
Metals - chemistry
Metals - isolation & purification
Metals - radiation effects
Radiation Dosage
Sonication
Sonoelectrochemistry
Stress, Mechanical
Surface Properties
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Summary:This paper deals with the effects of ultrasonic irradiation on electroless copper coating i.e. metallic deposition on non-conductive substrates and on electroplating on metallic substrates. Ultrasonic irradiation was both applied during activation (surface preparation for the electroless coating) and during plating steps in both cases. Several parameters were monitored, such as plating rates, practical adhesion, hardness, internal stress versus varying acoustic powers and frequencies. Optimum conditions for irradiation time, frequency and power were determined for each step. It appears clearly that ultrasound use affects deposit properties. Then, changes in the coating mechanisms can be discussed, and several parameters will be explored in this paper, to explain enhancement of deposit properties: increase in catalyst specific area, stirring dependence, surface energy evolution, dihydrogen desorption, structure of coating.
ISSN:1350-4177
1873-2828
DOI:10.1016/j.ultsonch.2004.06.002