The fundamentals of nano- and submicro-scaled ceramic particles incorporation into electrodeposited nickel layers: Zeta potential measurements

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• 作者：Helena Simunkova ; Paola Pessenda-Garcia ; Jaroslaw Wosik ; Paul Angerer ; Hermann Kronberger ; Gerhard E. Nauer
• 关键词：Electrodeposition ; Zeta potential ; Diffusion ; Nickel ; Zirconium dioxide ; Dispersion coatings
• 刊名：Surface and Coatings Technology
• 出版年：2009
• 出版时间：25 March 2009
• 年：2009
• 卷：203
• 期：13
• 页码：1806-1814
• 全文大小：1749 K

文摘

Nano- and submicro-scaled ZrO₂ particles were codeposited into Ni matrix by an electrochemical plating process using a Watts bath. The incorporation has been studied in relation to dispersion stability. The ZrO₂ particles were characterized through zeta potential electro-acoustic measurements and particle size distribution. SEM and EDX analysis of the codeposited layers were performed to characterise the coating morphology and to determine the particle concentration in the layer. A content up to 10 vol. % of ZrO₂ was found in Ni matrix. As electrostatic repulsion within the dispersion increases, particle agglomeration slows down and the concentration of non-agglomerated particles rises resulting in an enhanced amount of particles incorporated in the electroplated Ni layers. The effect of electrophoresis and diffusion on particle transport to the cathode is discussed.