Infrared-spectroscopy analysis of zinc phosphate and nickel and manganese modified zinc phosphate coatings on electrogalvanized steel
2011; SciELO; Volume: 64; Issue: 1 Linguagem: Inglês
10.1590/s0370-44672011000100005
ISSN1807-0353
AutoresKirlene Salgado Fernandes, Evandro de Azevedo Alvarenga, Paulo Roberto Gomes Brandão, Vanessa de Freitas Cunha Lins,
Tópico(s)X-ray Diffraction in Crystallography
ResumoHopeite-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).
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