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

V. S. Protsenko | Zendy; V.O. Gordiienko | Zendy; Ф. И. Данилов | Zendy; SikChol Kwon | Zendy

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

Author(s) -

V. S. Protsenko,

V.O. Gordiienko,

Ф. И. Данилов,

SikChol Kwon

Publication year - 2011

Publication title -

journal of chemistry

Language(s) - English

Resource type - Journals

eISSN - 2090-9063

pISSN - 2090-9071

DOI - 10.1155/2011/253203

Subject(s) - chromium , nanocrystalline material , chromate conversion coating , formic acid , materials science , environmentally friendly , aqueous solution , cathode , sulfate , metallurgy , inorganic chemistry , chemistry , nuclear chemistry , chemical engineering , nanotechnology , organic chemistry , engineering , ecology , biology

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

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