Search

Your search keyword '"Carla Martini"' showing total 4 results
Start Over Author "Carla Martini" Publisher hal ccsd
4 results on '"Carla Martini"'

1. First step in the PROCRAFT Project on WWII Aircraft Heritage: Investigation and Conservation of the Aluminium Alloys

Author

Magali Brunet, Luc Robbiola, Christophe Deshayes, Elena Bernardi, Carla Martini, Cristina Chiavari, Andrea Balbo, Cecilia Monticelli, Jaromir Fiser, Tomas Vyhlidal, Jane Echinard, Élodie Guilminot, Matériaux Multi-fonctionnels et Multi-échelles (CEMES-M3), Centre d'élaboration de matériaux et d'études structurales (CEMES), Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut de Chimie de Toulouse (ICT), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS), Travaux et recherches archéologiques sur les cultures, les espaces et les sociétés (TRACES), École des hautes études en sciences sociales (EHESS)-Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université de Toulouse (UT)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS), University of Bologna/Università di Bologna, Università degli Studi di Ferrara = University of Ferrara (UniFE), Czech Technical University in Prague (CTU), Arc'Antique, and JPI-CH

Subjects
aluminium alloys, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], protective coatings, Al cladding, aircraft heritage
Abstract

International audience; The conservation of excavated wrecks or abandoned aircraft is of cultural and historical interest. A first step in understanding the challenges posed by this type of cultural heritage and in finding solutions for its conservation is to document the constituent materials and their subsequent alterations. In the project PROCRAFT, aircraft wrecks from six nations involved in WWII were collected and then studied. Analysis of the elemental composition together with archival research allowed identification of the wrought aluminium alloys used in the non-structural and structural parts of the aircraft. Three manufacturing processes were recognised: rolling, extrusion and forging. The corrosion protection treatments applied during manufacturing of the aircraft parts were also examined, which revealed cladding with a thin aluminium foil, anodisation or the application of primer/paint. Based on typical examples of the alterations that occurred in the metal components, we demonstrate the importance of this original protection against the aggressiveness of the environment.

Published
2022

2. Practical adhesion measurements of protective coatings on bronze by three-point bending test

Author

Tadeja Kosec, Elena Bernardi, Cristina Chiavari, Cecilia Monticelli, Giulia Masi, Erika Švara Fabjan, Nina Gartner, Andrea Balbo, Maëlenn Aufray, Luka Škrlep, Maria Chiara Bignozzi, Marko Kete, Carla Martini, Marija Babnik, Teja Koršič, Luc Robbiola, Claudie Josse, Centre interuniversitaire de recherche et d'ingenierie des matériaux (CIRIMAT), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT), Centre de microcaractérisation Raimond Castaing (Centre Castaing), Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Travaux et recherches archéologiques sur les cultures, les espaces et les sociétés (TRACES), École des hautes études en sciences sociales (EHESS)-Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université de Toulouse (UT)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique - CNRS (FRANCE), Ecole des Hautes Etudes en Sciences Sociales - EHESS (FRANCE), Institut National Polytechnique de Toulouse - INPT (FRANCE), Institut National des Sciences Appliquées de Toulouse - INSA (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Institut National de Recherches Archéologiques Préventives - INRAP (FRANCE), Ministère de la culture et de la communication (FRANCE), Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Institut de Chimie du CNRS (INC), Centre de microcaractérisation Raimond Castaing (CMCR), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées, École des hautes études en sciences sociales (EHESS)-Université Toulouse - Jean Jaurès (UT2J)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Aufray M., Josse C., Balbo A., Monticelli C., Svara Fabjan E., Skrlep L., Kosec T., Gartner N., Martini C., Masi G., Chiavari C., Bernardi E., Bignozzi M.C., Robbiola L., Babnik M., Korsic T., and Kete M.

Subjects
Aging, Materials science, Three point flexural test, Matériaux, Alloy, 02 engineering and technology, Conservation, engineering.material, 010402 general chemistry, 01 natural sciences, Science des matériaux, Corrosion, [SPI.MAT]Engineering Sciences [physics]/Materials, chemistry.chemical_compound, Colloid and Surface Chemistry, Coating, Composite material, Bronze, Practical adhesion, Outdoor bronze, Ambientale, Surfaces and Interfaces, General Chemistry, Patina, FIB-SEM, 021001 nanoscience & nanotechnology, Silane, Accelerated aging, Adherence, Practical adhesion, Patina, Aging, FIB-SEM, Outdoor bronze, Conservation, Cultural heritage, 0104 chemical sciences, Surfaces, Coatings and Films, chemistry, Adherence, engineering, Cultural heritage, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], Adhesive, 0210 nano-technology
Abstract

International audience; When attempting to sufficiently protect outdoor bronze monuments from corrosion, searches for an effective solution are usually based on coating applications which have a high anticorrosive efficiency. In order to correctly assess the level of protection provided by such coatings, adherence (practical adhesion) measurements need to be performed for the proper evaluation of the deterioration of coating systems with aging. Although a coupled study of adherence with aging would be of great interest, very few such studies are available. In this work, a methodological approach is proposed for the evaluation of coatings applied to metallic cultural heritage monuments of, based on the use of a three-point bending test. Adherence characterization of different protective coatings has been performed both on bare and on traditionally black-patinated bronze coupons (Cu–Sn alloy with 5.9 wt% Sn), which were used as basic model substrates. The investigated coatings were Incralac®, silane, sol–gel oxysilane, and a silane-modified polymethacrylate (an adhesion promoter for fluoropolymer). The results of measurements which were obtained before and after accelerated aging in concentrated acid rain made it possible to more easily differentiate between the various adherence levels of different coating systems. Coupled with adherence measurements, the results of systematic optical and SEM observation of the different failure morphologies are also presented. In the case of the coated bare alloy, adhesive failures were mainly observed. The silane (PropS-SH) coating showed the best adherence. In the case of the patinated bronze test specimens, only cohesive failures occurred. Adherence is directly related to the cohesion of the black patina rather than that of the applied coating. It was observed that aging reduces the level of the adherence.

Published
2019
Full Text
View/download PDF

3. Evaluation of 2-(salicylideneimino) thiophenol and other Schiff bases as bronze corrosion inhibitors by electrochemical techniques and surface analysis

Author

Cristina Chiavari, Carla Martini, Jérôme Esvan, Lorenza Marvelli, Luc Robbiola, F. Zanotto, Cecilia Monticelli, Andrea Balbo, Università degli Studi di Ferrara (UniFE), Centre interuniversitaire de recherche et d'ingenierie des matériaux (CIRIMAT), Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Institut de Chimie du CNRS (INC), Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), Travaux et recherches archéologiques sur les cultures, les espaces et les sociétés (TRACES), École des hautes études en sciences sociales (EHESS)-Université Toulouse - Jean Jaurès (UT2J)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS), Monticelli, C., Balbo, A., Esvan, J., Chiavari, C., Martini, C., Zanotto, F., Marvelli, L., Robbiola, L., Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Università di Bologna (ITALY), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Ministère de la culture et de la communication (FRANCE), Università degli Studi di Ferrara - UNIFE (ITALY), and Travaux et recherches archéologiques sur les cultures, les espaces et les sociétés - TRACES (Toulouse, France)

Subjects
Matériaux, 020209 energy, General Chemical Engineering, 02 engineering and technology, engineering.material, Electrochemistry, Corrosion, [SPI.MAT]Engineering Sciences [physics]/Materials, Schiff base, chemistry.chemical_compound, Corrosion inhibitor, Adsorption, X-ray photoelectron spectroscopy, 0202 electrical engineering, electronic engineering, information engineering, XPS, Molecule, General Materials Science, Bronze, EIS, Schiff bases, Chemistry, Thiophenol, Ambientale, General Chemistry, [CHIM.MATE]Chemical Sciences/Material chemistry, 021001 nanoscience & nanotechnology, 13. Climate action, engineering, 0210 nano-technology, Nuclear chemistry
Abstract

International audience; n this research, different Schiff bases were synthesized and tested as bronze corrosion inhibitors in concentrated synthetic acid rain at pH 3.3. Some of them showed good inhibiting effects, as detected by EIS and polarization curve recording. The most efficient inhibitor (2-(salicylideneimino) thiophenol, SITP) was also tested with ad-dition of sodium dihydrogen phosphate (P). P improved the surface film resistance against breakdown phe-nomena. XPS and SEM investigations showed that SITP and SITP + P significantly hinder decuprification. Moreover, SITP forms a protective layer on bronze, composed of both Cu(I)-SITP complexes and adsorbed in-hibitor molecules. Cu(II) phosphates were also detected with P addition.

Published
2019
Full Text
View/download PDF

4. Efficienza inibitrice di basi di schiff come inibitori di corrosione del bronzo

Author

Cecilia Monticelli, Andrea Balbo, Jérôme Esvan, Cristina Chiavari, Carla Martini, Federica Zanotto, Lorenza Marvelli, Luc Robbiola, Università degli Studi di Ferrara (UniFE), Centre interuniversitaire de recherche et d'ingenierie des matériaux (CIRIMAT), Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Institut de Chimie du CNRS (INC), Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), Travaux et recherches archéologiques sur les cultures, les espaces et les sociétés (TRACES), École des hautes études en sciences sociales (EHESS)-Université Toulouse - Jean Jaurès (UT2J)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS), Monticelli, C., Balbo, A., Esvan, J., Chiavari, C., Martini, C., Zanotto, F., Marvelli, L., Robbiola, L., Centre National de la Recherche Scientifique - CNRS (FRANCE), Ecole des Hautes Etudes en Sciences Sociales - EHESS (FRANCE), Institut National Polytechnique de Toulouse - INPT (FRANCE), Università di Bologna (ITALY), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université Toulouse - Jean Jaurès - UT2J (FRANCE), Institut National de Recherches Archéologiques Préventives - INRAP (FRANCE), Ministère de la culture et de la communication (FRANCE), Università degli Studi di Ferrara - UNIFE (ITALY), Centre Interuniversitaire de Recherche et d'Ingénierie des Matériaux - CIRIMAT (Toulouse, France), Travaux et Recherches Archéologiques sur les Cultures, les Espaces et les Sociétés - TRACES (Toulouse, France), and Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)

Subjects
pioggia acida artificiale, Corrosion inhibitors, Matériaux, Artificial acid rain, Bronzo, inibitori di corrosione, basi di Schiff, pioggia acida artificiale, misure elettrochimiche, SEM-EDS, Raman, XPS, Basi di schiff, Ambientale, Condensed Matter Physic, Piogga acidaartificiale, Electrochemical measurement, Inibitori di corrosione, [SPI.MAT]Engineering Sciences [physics]/Materials, Schiff base, SEM-EDS, Bronze, Corrosion inhibitor, Misure elettrochimiche, XPS, Mechanics of Material, Schiff bases, Electrochemical measurements, Bronzo, Raman
Abstract

International audience; As part of an M-ERA.NET project called B-IMPACT some polidentate Schiff bases were synthesized and tested as corrosion inhibitors of bronze. The tests consisted of exposures of bronze specimens to a concentrated artificial acid rain solution, containing or not containing the studied substances added under saturation conditions (< 10(3) M). Their inhibiting effect was evaluated during 20 day immersions by means of non-destructive electrochemical tests (Electrochemical Impedance Spectroscopy) and by finally recording the polarization curves. Observations by a scanning electron microscope coupled with Energy Dispersive X-ray Spectroscopy allowed comparing the morphology of corrosion attack in the absence and presence of inhibitors. The best inhibiting properties were achieved in the presence of 2-(salicylideneimino)thiophenol (SITP). The addition of phosphate ions to SITP induced the formation of a surface film particularly resistant against localized corrosion phenomena. Raman and XPS spectroscopy were applied in order to investigate the inhibition mechanism of sire without and with the presence of phosphate ions.; Nell’ambito di un progetto M-ErA.NET denominato B-IMPACT, sono state sintetizzate alcune basi di schiff polidentate che sono state usate come inibitori della corrosione del bronzo. Le prove consistevano in esposizioni ad una soluzione di pioggia acida artificiale con-centrata, in cui le sostanze erano presenti in concentrazioni di saturazione (< 10-3 M). Il loro effetto inibitore è stato valutato durante 20 giorni di immersione tramite prove elettrochimiche non distruttive (spettroscopia di Impedenza Elettrochimica) e attraverso la regi-strazione di curve di polarizzazione. Osservazioni al microscopio elettronico a scansione accoppiato ad una microsonda a dispersione di energia hanno permesso di confrontare la morfologia dell’attacco corrosivo in assenza e in presenza di inibitori. Le migliori proprietà inibitrici sono state rilevate in presenza di 2-salicilideneimmino tiofenolo (sITP). L’aggiunta di ioni fosfato al sITP induce la formazione di film superficiali particolarmente resistenti nei confronti di fenomeni di corrosione localizzata. sono inoltre state applicate la spettro-scopia raman ed XPs per meglio investigare il meccanismo di inibizione del sITP, sia in assenza che in presenza di ioni fosfato.

Published
2016

Catalog

Books, media, physical & digital resources
See catalog results