Codeposition of alpha-alumina particles from acid copper sulfate bath

Hidetaka Hayashi, Shin ya Izumi, Isao Tari

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

The purpose of this work is to elucidate the factors affecting the codeposition of α-alumina particles with copper from an acid copper sulfate bath. The effect of current density and particle concentration in the bath on the amount of codeposited α-alumina were determined. In order to evaluate the surface-chemical properties of the particles, the zeta-potential of α-alumina particles in the plating bath was determined by means of the streaming potential method. The amounts of adsorbed Cu2+ and SO42- from the plating bath were also determined. The amount of codeposited α-alumina particles was found to be greater than those reported in literature, in spite of the negative zeta-potential values of α-alumina. This indicates that the electrostatic interaction between the particles and the cathode is not the essential factor of the codeposition process. It is considered that the amount of adsorbed Cu2+ on the α-alumina particle plays an important role in the codeposition behavior.

Original languageEnglish
Pages (from-to)362-365
Number of pages4
JournalJournal of the Electrochemical Society
Volume140
Issue number2
Publication statusPublished - Feb 1993

Fingerprint

Copper Sulfate
Aluminum Oxide
baths
sulfates
Alumina
aluminum oxides
Copper
copper
acids
Acids
Zeta potential
Plating
plating
Coulomb interactions
Chemical properties
Sulfates
chemical properties
Cathodes
Current density
cathodes

ASJC Scopus subject areas

  • Electrochemistry
  • Surfaces, Coatings and Films
  • Surfaces and Interfaces

Cite this

Codeposition of alpha-alumina particles from acid copper sulfate bath. / Hayashi, Hidetaka; Izumi, Shin ya; Tari, Isao.

In: Journal of the Electrochemical Society, Vol. 140, No. 2, 02.1993, p. 362-365.

Research output: Contribution to journalArticle

Hayashi, H, Izumi, SY & Tari, I 1993, 'Codeposition of alpha-alumina particles from acid copper sulfate bath', Journal of the Electrochemical Society, vol. 140, no. 2, pp. 362-365.
Hayashi, Hidetaka ; Izumi, Shin ya ; Tari, Isao. / Codeposition of alpha-alumina particles from acid copper sulfate bath. In: Journal of the Electrochemical Society. 1993 ; Vol. 140, No. 2. pp. 362-365.
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