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DC Field | Value | Language |
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dc.contributor.author | Leite, Adriana de Oliveira Sousa | - |
dc.contributor.author | Araújo, Walney Silva | - |
dc.contributor.author | Margarit-Mattos, Isabel Cristina Pereira | - |
dc.contributor.author | Correia, Adriana Nunes | - |
dc.contributor.author | Lima Neto, Pedro de | - |
dc.date.accessioned | 2023-05-18T16:58:40Z | - |
dc.date.available | 2023-05-18T16:58:40Z | - |
dc.date.issued | 2005 | - |
dc.identifier.citation | LEITE, Adriana de Oliveira Sousa; ARAÚJO, Walney Silva; MARGARIT, Isabel Cristina Pereira; CORREIA, Adriana Nunes; LIMA NETO, Pedro de. Evaluation of the anticorrosive properties of environmental friendly inorganic corrosion inhibitors pigments. Journal of the Brazilian Chemical Society, São Paulo, v.16, n. 4, p. 756-762, 2005 | pt_BR |
dc.identifier.issn | 0103-5053 | - |
dc.identifier.other | DOI: https://doi.org/10.1590/S0103-50532005000500013 | - |
dc.identifier.uri | http://www.repositorio.ufc.br/handle/riufc/72374 | - |
dc.description.abstract | Anticorrosive properties of the following environmental friendly inorganic pigments were evaluated: zinc phosphate (ZP), zinc molybdate (ZM), zinc calcium molybdate (ZCM), zinc phosphomolybdate (ZPM) and zinc calcium phosphomolybdate (ZCPM). AISI 1010 steel samples were immersed in 10-2 mol dm-3 NaCl aqueous solution saturated with one of the pigments, followed by mass loss measurements, by monitoring the open circuit potential with immersion time and by potentiodynamic linear polarization at 1 mV s-1. The corrosion products on the steel surface were characterized by Scanning Electron Microscopy, Energy Dispersive X-ray and X-rays Diffraction analyses. All the pigments inhibited the corrosion of steel. The films formed on the steel surface protect the substrate against corrosion. The results suggest a synergic effect of phosphate and molybdate compounds in the phosphomolybdate-based pigments, improving the corrosion resistance of steel. The ZMP and ZCPM decreased the corrosion rate by a factor of 2.15 and 3.50, respectively. | pt_BR |
dc.language.iso | en | pt_BR |
dc.publisher | Journal of the Brazilian Chemical Society | pt_BR |
dc.subject | Steel | pt_BR |
dc.subject | Corrosion | pt_BR |
dc.subject | Anticorrosive pigments | pt_BR |
dc.subject | Mass loss | pt_BR |
dc.subject | Electrochemical tests | pt_BR |
dc.subject | Surface analysis | pt_BR |
dc.subject | Aço | pt_BR |
dc.subject | Corrosão | pt_BR |
dc.subject | Pigmentos anticorrosivos | pt_BR |
dc.subject | Perda de massa | pt_BR |
dc.subject | Testes eletroquimicos | pt_BR |
dc.subject | Análise de superfície | pt_BR |
dc.title | Evaluation of the anticorrosive properties of environmental friendly inorganic corrosion inhibitors pigments | pt_BR |
dc.type | Artigo de Periódico | pt_BR |
dc.description.abstract-ptbr | Neste trabalho foram estudadas as propriedades anticorrosivas de cinco pigmentos inorgânicos comerciais considerados ecologicamente corretos: fosfato de zinco (ZP), molibdato de zinco (ZM), molibdato de zinco e cálcio (ZCM), fosforomolibdato de zinco (ZPM) e fosforomolibdato de zinco e cálcio (ZCPM). Amostras de aço AISI 1010 foram imersas em solução aquosa de NaCl 10-2 mol dm-3 saturada com um dos pigmentos, seguido de medidas de perda de massa, monitoramento do potencial de circuito aberto com o tempo de imersão e polarização linear potenciodinâmica a 1 mV s-1. Os produtos de corrosão foram caracterizados por Microscopia Eletrônica de Varredura, Energia Dispersiva da raios-X e Difração de raios-X. Todos os pigmentos inibiram a corrosão do aço. Os filmes formados na superfície protegem o aço contra corrosão. Os resultados sugerem efeito sinérgico entre os compostos de fosfato e molibdato nos pigmentos a base de fosforomolibdato. Os pigmentos ZMP e ZCPM diminuíram a taxa de corrosão por um fator de 2,15 e 3,50, respectivamente. | pt_BR |
Appears in Collections: | DEME - Artigos publicados em revista científica |
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2005_art_plimaneto.pdf | 555,26 kB | Adobe PDF | View/Open |
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