Preparation and Characterization of Nanocrystalline Hard Chromium Coatings Using Eco-Friendly Trivalent Chromium Bath

V. S. Protsenko; V. O Gordiienko; F. I. Danilov; S. C. Kwon

doi:10.1155/2011/253203

E-Journal of Chemistry (Jan 2011)

Preparation and Characterization of Nanocrystalline Hard Chromium Coatings Using Eco-Friendly Trivalent Chromium Bath

V. S. Protsenko,
V. O Gordiienko,
F. I. Danilov,
S. C. Kwon

Affiliations

V. S. Protsenko: Department of Physical Chemistry, Ukrainian State University of Chemical Technology, Gagarin Av. 8, Dnepropetrovsk, 49005, Ukraine
V. O Gordiienko: Department of Physical Chemistry, Ukrainian State University of Chemical Technology, Gagarin Av. 8, Dnepropetrovsk, 49005, Ukraine
F. I. Danilov: Department of Physical Chemistry, Ukrainian State University of Chemical Technology, Gagarin Av. 8, Dnepropetrovsk, 49005, Ukraine
S. C. Kwon: Surface Engineering Department, Korea Institute of Machinery and Materials, 66 Sangnam-dong, Changwon, Gyeongnam 641-010, Republic of Korea

DOI: https://doi.org/10.1155/2011/253203
Journal volume & issue: Vol. 8, no. 4
pp. 1925 – 1929

Abstract

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A new aqueous sulfate trivalent chromium bath is described. The chromium bath contains formic acid and carbamide as complexing agents. Chromium was deposited at a temperature of 30÷40 oC and a cathode current density of 10÷25 A dm-2. The bath allows obtaining thick (up to several hundred micrometers) hard chromium coatings with nanocrystalline structure. The electrodeposition rate reaches 0.8÷0.9 µm min-1.

Published in E-Journal of Chemistry

ISSN: 0973-4945 (Print); 2090-9810 (Online)
Publisher: Wiley
Country of publisher: United Kingdom
LCC subjects: Science: Chemistry
Website: https://onlinelibrary.wiley.com/journal/2962

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