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Rem: Revista Escola de Minas

Print version ISSN 0370-4467


FERNANDES, Kirlene Salgado; ALVARENGA, Evandro de Azevedo; BRANDAO, Paulo Roberto Gomes  and  LINS, Vanessa de Freitas Cunha. Infrared-spectroscopy analysis of zinc phosphate and nickel and manganese modified zinc phosphate coatings on electrogalvanized steel. Rem: Rev. Esc. Minas [online]. 2011, vol.64, n.1, pp.45-49. ISSN 0370-4467.

Hopeite-type phosphate coatings in which zinc is partially replaced by other metals like manganese and nickel are of great interest for the automotive and home appliance industries. Such industries use phosphate conversion coatings on galvanized steels in association with cataphoretic electropainting. Zinc phosphates modified with manganese and nickel are isomorphic with the hopeite, and the phase identification using X-ray diffraction is difficult. In this paper, the phosphate coatings are identified using the Fourier transform infrared spectroscopy (FTIR).

Keywords : Surfaces; zinc phosphate; coatings; infrared spectroscopy.

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