What is it about?
Addition of nano-size Al2O3 to Cr film from an environment-friendly trivalent chromium bath improves wear resistance and strength of the coating.
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Why is it important?
Environment protection Good Cr coating
Perspectives
Cr (III) is not as toxic and as carcinogenic as Cr (VI) which is widely used for Cr electroplating these days. Low current efficiency and poor product quality are, however, major drawbacks of the former. This paper describes significant improvements obtainable by addition of Al2O3 nanoparticles to the Cr (III) bath for increasing the microhardness, the corrosion resistance and the current efficiency of the deposition.
S.K. Sadrnezhaad
Sharif University of Technology
Read the Original
This page is a summary of: Electroplating and characterization of Cr–Al2O3 nanocomposite film from a trivalent chromium bath, Anti-Corrosion Methods and Materials, May 2014, Emerald,
DOI: 10.1108/acmm-12-2012-1227.
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