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The role of Ce(III)-enriched zeolites on the corrosion protection of AA2024-T3

The present work demonstrates that the addition of Ce-enriched zeolite microparticles to hybrid sol–gel formulation confers protection to the coating. After two weeks of immersion the integrity of sol–gel film remains unchanged. These properties are due to the fact that the Ce(III) loaded zeolite microparticles are released in response to the adsorption of ionic species involved in the corrosion process of AA2...

Uma introdução à técnica SVET

Este artigo apresenta uma introdução à Técnica do Eléctrodo Vibrante de Varrimento (SVET). Começa por uma breve resenha histórica, seguida da descrição do princípio de funcionamento, exemplos da aplicação a casos de corrosão, alguns cálculos possíveis, limitações, instrumentação, detalhes experimentais e exemplos da sua associação a outras técnicas electroquímicas.

Corrosion protection of AA2024 by sol-gel coatings modified with Ce (III)-enric...

Corrosion protection of AA2024 by sol-gel coatings mofidified with mixed Ce(III...

Revestimentos auto-reparadores de sol-gel dopados com zeólitos permutados com c...

Semiconducting properties of oxide and passive films formed on AISI 304 stainle...

The semiconducting properties of passive films formed on AISI 304 stainless steel and Alloy 600 in borate buffer solution were studied by capacitance (Mott-Schottky approach) and photocurrent measurements. Oxide films formed on 304 stainless steel in air at 350 ºC have also been studied. The results obtained show that, in all cases the electronic structure of the films is comparable to that of a p-n heterojunct...