| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Carvalho, M. L.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (17/17 displayed)
- 2021Investigation of inks, pigments and paper in four Moroccan illuminated manuscripts dated to the eighteenth centurycitations
- 2019A painter in the shadowcitations
- 2019Josefa d' Óbidos workshop from panel to canvas. Multianalytical approach to materials and technical evolution of the most significant Portuguese painting workshop of the 17 th centurycitations
- 2016Distribution of toxic elements in teeth treated with amalgam using mu-energy dispersive X-ray fluorescencecitations
- 2016Titanate nanotubes sensitized with silver nanoparticles: synthesis, characterization and in-situ pollutants photodegradationcitations
- 2015Microscopy and X-Ray Spectroscopy Analyses for assessment gilding and silvering techniques of Portuguese illuminated manuscriptscitations
- 2015White Spots on Smoke Rings by Bruce Nauman: A Case Study On Contemporary Art Conservation Using Microanalytical Techniquescitations
- 2015Microscopy and Microanalysis of an Extreme Case of Salt and Biodegradation in 17th Century Wall Paintingscitations
- 2015Nondestructive analysis of Portuguese “dinheiros” using XRF: overcoming patina constraintscitations
- 2015A multi-analytical approach to gold in Ancient Egypt: Studies on provenance and corrosioncitations
- 2014Effect of protein adsorption on the corrosion behavior of 70Cu-30Ni alloy in artificial seawatercitations
- 2014The study of marine corrosion of copper alloys in chlorinated condenser cooling circuitscitations
- 2013Pulsed current electrodeposition of Zn-Ag2S/TiO2 nanocomposite films as potential photoelectrodescitations
- 2013The earrings of Pancas treasure: Analytical study by X-ray based techniques-A first approachcitations
- 2012Monitoring by an electrochemical integrated system the corrosion and antifouling treatment on aluminum brass condenser tubescitations
- 2008Pigment characterization and state of conservation of an 18th century fresco in the Convent of S. António dos Capuchos (Estremoz)citations
- 2008Analysis of a coloured Dutch map from the eighteenth centurycitations
Places of action
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article
The study of marine corrosion of copper alloys in chlorinated condenser cooling circuits
Abstract
<p>The present paper reports the on-line monitoring of corrosion behavior of the CuNi 70:30 and Al brass alloys exposed to seawater and complementary offline microbiological analyses.An electrochemical equipment with sensors specifically set for industrial application and suitable to estimate the corrosion (by linear polarization resistance technique), the biofilm growth (by the BIOX electrochemical probe), the chlorination treatment and other physical-chemical parameters of the water has been used for the on-line monitoring.In order to identify and better characterize the bacteria community present on copper alloys, tube samples were collected after a long period (1. year) and short period (2. days) of exposition to treated natural seawater (TNSW) and natural seawater (NSW).From the collected samples, molecular techniques such as DNA extraction, polymerase chain reaction (PCR), denaturing gradient gel electrophoresis (DGGE) and identification by sequencing were performed to better characterize and identify the microbial biodiversity present in the samples.The monitoring data confirmed the significant role played by biofouling deposition against the passivity of these Cu alloys in seawater and the positive influence of antifouling treatments based on low level dosages.Molecular analysis indicated biodiversity with the presence of Marinobacter, Alteromonas and Pseudomonas species.</p>