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EFC Working Party 21: Corrosion of Archaeological and Historical Artifacts

EUROCORR 2011 Stockholm

Joint Session "Corrosion of archaeological and heritage artefacts" Working Party and "Atmospheric corrosion" workshop

The Eurocorr 2011 congress held in Stockholm with a specific session dedicated to corrosion of cultural heritage artifacts. This session was co-organised with the workshop "Atmospheric corrosion" sharing, several papers on common subjects. The co-organisors of the session were Christopher Leygraf, Johan Tidblad, Odnewall Wallinder and Philippe Dillmann.

This special session was a real success. More than 60 participants obliged the organizers to give us a larger room for the session during the day ! Communication from 10 different countries (including Mexique) on various metals and even stone were presented. It was very interesting to compare the different approaches on corrosion of cultural heritage artefacts from statistical modeling of climate and environmental stresses on the ancient materials to very fine studies on mechanisms at the micro and nanolevels. A good equilibrium was respected between "hard science" studies and papers more especially dedicated to conservation issues.

 The session was followed by the annual business meeting of the WP21"

 


PhD, Post doc and position forum of the WP21

This forum will provide recent positions offer for the different laboratories of the WP21 members

Post doctoral positions

  • Title : Multi scale and multi technique Analytical approach on very long term corrosion systems

    These last years, the long term prediction of corrosion of ferrous alloys in different media (several hundred years) has been intensively studied. Currently two main fields of research are interested by these results and require reliable experimental data to model corrosion of iron: on the one hand it is needed to conserve cultural heritage metals (archaeological artifact etc), on the other hand civil engineering, including nuclear industries for the safe storage of wastes, needs to use materials (steels) on hundred years of service time. In both fields, different approaches are implemented: laboratory simulation, studies of archaeological artifact, modeling, etc.

    The proposed position takes place in this general context and will consist in the study, using different characterization techniques (from mm to nanometer scales), of samples that are coming from different origins. First reference coupons are submitted to corrosion in various controlled conditions in order to determine the evolution of the corrosion systems in the first periods of alteration. Second archaeological artefacts will be submitted to recorrosion experiments to test the stability of the long term systems.

    Location: the work will take place in the Laboratoire Archéomatériaux et Prévision de l'Altération (LAPA), CEA Saclay, France

    Profile: Scientist in material science and corrosion

    Skills needed:
    -   Good knowledge of the following characterization techniques:
         -  Optical microscopy
         -  SEM, EDS
         -  XRD
         -  µRaman spectroscopy

    -  Good knowledge in corrosion and/or thermodynamic simulation

    -  Optional : nuclear microprobe, synchrotron radiation, SIMS

    Duration: 18 months

    Contact: Philippe Dillmann - E-mail:    or Delphine Neff - E-mail:

  • Title: Study of archaeological artifact corroded in anoxic media

    1 to 3 years position
    Beginning: January 2011

    Contact : Philippe Dillmann, CEA Saclay, France; E-mail: 
     
  • Title: The role of indoor gaseous pollutants in the mechanism of corrosion degradation of metallic objects of cultural heritage

Project description:  Air quality control is vital to the protection of the valuable, culturally significant objects in museums, expositions, depositories, and archives. The main factors affecting air corrosivity are temperature, relative humidity, the concentration of pollutants such as SO2, NOx, O3, NH3, HCl, H2S, dispersed chlorides, organic acids, other volatile compounds and dust particles.
Within a project supported by the European Commission, a unique electronic tool for real-time corrosion monitoring in atmospheric conditions has been developed. It is available for precise observations of corrosion processes on copper, silver, steel, zinc, bronze and lead. In combination with a climatic chamber available at Institut de la Corrosion that allows exposing to air at precisely controlled relative humidity, temperature and concentration of specific pollutant gases, it provides opportunity for unprecedented scientific studies on the role of air pollutants in corrosion processes of different metals.
The goal of the project is to follow corrosion performance of metals typically found in museum collections in presence of pollutants such as formic and acetic acid, nitric acid, hydrogen sulfide and others at different concentrations in order to find threshold levels leading to unacceptable corrosion deterioration at given relative humidity and temperature. Such data are strongly needed by cultural heritage professionals for selection of proper conservation policies. In addition, the mechanism of corrosion processes will be studied using surface analytical techniques available at Institut de la Corrosion (infrared spectroscopy) and at Centre de recherche et de restauration des musées de France, Louvre (radiography including tomography and emissiography, scanning electron microscopy, x-ray spectrometry, ion beam analysis [PIXE, RBS, NRA] etc.).

Requirements: MSc degree in material science or chemistry; Experience with surface analytical techniques; Ability to work independently.

Duration: 1 year from about April 2011

Host institute : Institut de la Corrosion, Brest in collaboration with Centre de recherche et de restauration des musées de France, Paris Contact : Dr. Tomas Prosek, Institut de la Corrosion, 220 rue Pierre Rivoalon, 29200 Brest, phone: + 33 (0) 298051552, e-mail:

 


Publications

Publications of WP members


 


Chairman:

Dr. Philippe DILLMANN
Head of  "Archaeomaterials and Alteration Prediction Laboratory"
SIS2M/LPS CEA/CNRS and IRAMAT LMC CNRS
CEA Saclay
91191 Gif sur Yvette Cedex, France
E-mail:

 

PhotoAnnemieAdriaens

Vice-Chair:

Prof. Dr. Annemie ADRIAENS
Department of Analytical Chemistry
Ghent University
Krijgslaan 281-S12
9000 Ghent, Belgium
E-mail:

 

 

 

 

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