Electrochemical characterization and degradation of carbon fibre reinforced polymer in quiescent near neutral chloride media

Autor: Stanley Udochukwu Ofoegbu, Marcela C. Quevedo, A. C. Bastos, M. G. S. Ferreira, M. L. Zheludkevich

Publikováno v: npj Materials Degradation, Vol 6, Iss 1, Pp 1-14 (2022)

Abstract In a quest for a better understanding of the mechanism and contribution(s) of fresh (“un-degraded”) and degraded CFRP surfaces to galvanic corrosion of coupled metals in multi-material assemblies the electrochemical behaviour of CFRP in

Externí odkaz: https://doaj.org/article/ec8096b8ec464db5ba0056005c768cd3

Degradación de recubrimientos de bobinas: radiación UV y efectos térmicos

Autor: A. S. Castela, A. M. Simões, G. Davies, M. G. S. Ferreira

Publikováno v: Revista de Metalurgia, Vol 39, Iss Extra, Pp 167-173 (2003)

El efecto del calor y del envejecimiento, QUV, sobre recubrimiemtos de bobinas se probó mediante la impedancia electroquímica, y los resultados se compararon con análisis superficiales de los polímeros usando FTIR y XPS. Se encontró que la radia

Externí odkaz: https://doaj.org/article/d89e55fa9cd0400492c0ad8922ede98b

The Role of Cu-Based Intermetallic on the Direct Growth of a ZnAl LDH Film on AA2024

Autor: A. C. Bouali, M. Serdechnova, K. A. Yasakau, A. Lutz, G. Wiese, H. Terryn, M. G. S. Ferreira, M. L. Zheludkevich

Publikováno v: Bouali, A.C.; Serdechnova, M.; Yasakau, K.A.; Lutz, A.; Wiese, G.; Terryn, H.; Ferreira, M.G.S.; Zheludkevich, M.L.: The Role of Cu-Based Intermetallic on the Direct Growth of a ZnAl LDH Film on AA2024. In: Journal of the Electrochemical Society. Vol. 169 (2022) 8, 081501. (DOI: /10.1149/1945-7111/ac83f5)

The direct ZnAl layered double hydroxide growth on AA2024 is a fast-occurring reaction, yet is characterized by an inhomogeneous film thickness. It has been shown that at the periphery of Cu-rich intermetallic, the flakes tend to be larger and denser

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a2c9c6670f25db0a90d94740f4293280
https://doi.org/10.1149/1945-7111/ac83f5

Sacrificial protection of Mg-based resorbable implant alloy by magnetron sputtered Mg5Gd alloy coating: A short-term study

Autor: Eckhard Quandt, Mikhail L. Zheludkevich, F. Feyerabend, Alexandre C. Bastos, D. Haffner, Kiryl A. Yasakau, M. G. S. Ferreira

Publikováno v: Corrosion Science. 189:109590

In this work metallic pins made of Mg5Gd alloy were coated with magnetron sputtered PVD Mg5Gd layers. Immersion tests in Hank’s balanced salt solution (HBSS) were performed. The PVD coating drastically reduced the corrosion rate of the Mg5Gd pin. T

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3cc2b0ab25a183752cbcd5dc558c9162
https://doi.org/10.1016/j.corsci.2021.109590

A critical look at interpretation of electrochemical impedance spectra of sol-gel coated aluminium

Autor: M. G. S. Ferreira, Mikhail L. Zheludkevich, M. Starykevich, Kiryl A. Yasakau

Publikováno v: Electrochimica Acta. 378:138091

A proper assignment of time constants is important for the correct interpretation of the electrochemical impedance spectra of coated substrates. In this work, several model aluminium samples with different anodic oxide thicknesses were prepared and c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8965ecb5a5c638f69531ac975889511d
https://doi.org/10.1016/j.electacta.2021.138091