Search Results - "Castela, A.S."

Corrosion Behavior of Stainless Steel Rebars Embedded in Concrete: an Electrochemical Impedance Spectroscopy Study by Duarte, R.G., Castela, A.S., Neves, R., Freire, L., Montemor, M.F.

“…This work aims at studying the electrochemical behavior, by Electrochemical Impedance Spectroscopy (EIS), of austenitic (AISI 304 and AISI 316) and duplex (SAF…”
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Assessment of the influence of Concrete Modification in the Water Uptake/Evaporation Kinetics by Electrochemical Impedance Spectroscopy by Vicente, C., Castela, A.S., Neves, R., Montemor, M.F.

“…Corrosion of reinforcing steel in concrete is a worldwide problem. An important factor affecting such process is the concrete composition and, especially the…”
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Influence of Unsupported Concrete Media in Corrosion Assessment for Steel Reinforcing Concrete by Electrochemical Impedance Spectroscopy by Castela, A.S., da Fonseca, B. Sena, Duarte, R.G., Neves, R., Montemor, M.F.

“…This work aims at studying the response of unsupported concrete media by Electrochemical Impedance Spectroscopy (EIS) and its influence in the results obtained…”
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Electrochemical Impedance Spectroscopy study on the absorption and evaporation processes in natural stones by Sena da Fonseca, B., Castela, A.S., Ferreira Pinto, A.P., Piçarra, S., Montemor, M.F.

“…Efforts have been made to create new procedures based on Electrochemical Impedance Spectroscopy (EIS) to study several characteristics of cementitious…”
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A comparative study between Cr(VI)-containing and Cr-free films for coil coating systems by Duarte, R.G., Bastos, A.C., Castela, A.S., Ferreira, M.G.S.

“…In this work, the protection conferred by Cr(VI)-containing and Cr-free pre-treatments and primers used in hot dip galvanized steel (HDG) coated systems were…”
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Chloride-induced corrosion behavior of reinforcing steel in spent fluid cracking catalyst modified mortars by Morozov, Y., Castela, A.S., Dias, A.P.S., Montemor, M.F.

“…Concrete properties can be improved by various additives. Nowadays there is a strong interest concerning the use of spent fluid catalytic cracking catalyst…”
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A new model for estimation of water uptake of an organic coating by EIS: The tortuosity pore model by Duarte, R.G., Castela, A.S., Ferreira, M.G.S.

“…In this work, a new and more intricate model of estimate water uptake inside an organic coating by impedance measurements is proposed, the tortuosity pore…”
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An impedance model for the estimation of water absorption in organic coatings. Part I: A linear dielectric mixture equation by Castela, A.S., Simões, A.M.

“…A capacitance model for the estimation of water uptake in polymeric coatings is presented. The model is based upon a linear combination of the individual…”
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Assessment of water uptake in coil coatings by capacitance measurements by Castela, A.S, Simões, A.M

“…A model for the estimation of water uptake in polymeric coatings is presented, based upon a linear combination of the individual capacitances of the polymeric…”
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Erratum to “A new model for estimation of water uptake of an organic coating by EIS: The tortuosity pore model” [Prog. Org. Coat. 65 (2009) 197–205] by Duarte, R.G., Castela, A.S., Ferreira, M.G.S.

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Influence of ageing factors on the corrosion behaviour of polyester coated systems—A EIS study by Duarte, R.G., Castela, A.S., Ferreira, M.G.S.

“…The main objective of this work is to study the influence of ageing factors – UV, temperature, pH, humidity and SO 2 – on the behaviour of polyester coated…”
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An impedance model for the estimation of water absorption in organic coatings. Part II: A complex equation of mixture by Castela, A.S, Simões, A.M

“…An impedance model for the estimation of water absorption in organic coatings is presented. In part I, the model was developed taking a high frequency…”
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Influence of the solution cation mobility on the water uptake estimation of PVC Plastisol freestanding films by EIS by Duarte, R.G., Castela, A.S., Ferreira, M.G.S.

“…In this work, the influence of the outer solution cation mobility on the electrochemical behaviour of PVC Plastisol freestanding films was studied. For that…”
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Water sorption in freestanding PVC films by capacitance measurements by Castela, A.S, Simões, A.M

“…A model for the estimation of water uptake in polymeric coatings is presented. Experimental comparison of the model with the Brasher–Kingsbury equation using a…”
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