4 documents found, page 1 of 1
A Corrosão em Imagens
Simões, Alda; Sushkova, Alesia; Alves, Alexandra; Franco, Alexandra; Sá, Ana Isabel; Mata, Ana Leonor; Pereira, Ana Marisa; Vieira, Ana SoaresPREFÁCIO: No vasto panorama da ciência dos materiais, Portugal, abriga uma comunidade multidisciplinar dedicada ao estudo da corrosão e da proteção de materiais. Neste contexto, as Jornadas de Corrosão e Proteção de Materiais nascem como um evento crucial, marcado pela sua natureza técnico-científica. Estas jornadas são um fórum de divulgação e de discussão dos resultados da investigação científica e do desenvo...
Characterization and behaviour of silica engineered nanocontainers in low and h...
Ferreira, Violeta; Figueiredo, Joana; Martins, Roberto; Sushkova, Alesia; Maia, Frederico; Calado, Ricardo; Tedim, João; Loureiro, SusanaMesoporous silica engineered nanomaterials are of interest to the industry due to their drug-carrier ability. Advances in coating technology include using mesoporous silica nanocontainers (SiNC) loaded with organic molecules as additives in protective coatings. The SiNC loaded with the biocide 4,5-dichloro-2-octyl-4-isothiazolin-3-one (DCOIT), i.e., SiNC-DCOIT, is proposed as an additive for antifouling marine ...
Smart coating for detection of early-stage corrosion of steel
Sushkova, Alesia; Wilhelm, Manon; Montes, Rodrigo; Neves, Cristina; Quevedo-Reyes, Marcela; Bastos, A.C.; Ferreira, M.G.S.; Tedim, JoãoABSTRACT: The work describes the investigation of LDH-based nanoadditives for early-stage corrosion detection of steel, and subsequent development of a multi-layer functional protection coating. A systematic study on the level of degradation and the detected colorimetric signal was performed using electrochemical characterisation. The protection properties and detection functionality were also studied in condit...
“Smart” nanosensors for early detection of corrosion: environmental behavior an...
Martins, Roberto; Figueiredo, Joana; Sushkova, Alesia; Wilhelm, Manon; Tedim, João; Loureiro, SusanaCorrosion is an environmental and economic global problem. “Smart” or stimuli-responsive colorimetric nanosensors for maritime coatings have been proposed as an asset to overcome the limitations of the current monitoring techniques by changing color in the presence of triggers associated with the early stages of corrosion. Layered double hydroxides (Zn–Al LDH; Mg–Al LDH) and silica mesoporous nanocapsules (SiNC...