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Portal > Offres > Offre UMR8220-LAUDEV-002 - Post-doctorant (H/F) - Propriétés mécaniques et optiques de films d'huiles

Post-doctorate (H/F) - Optical and Mechanical Properties of Oil films

This offer is available in the following languages:
Français - Anglais

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General information

Reference : UMR8220-LAUDEV-002
Workplace : PARIS 05
Date of publication : Monday, September 02, 2019
Type of Contract : FTC Scientist
Contract Period : 18 months
Expected date of employment : 4 November 2019
Proportion of work : Full time
Remuneration : between 2600 et 3000 euros gross monthly according to experience.
Desired level of education : PhD
Experience required : 1 to 4 years

Missions

Oils used in historical paintings are natural drying oils, such as linseed, walnut or poppy seed oils. Their main components are triglycerides, which are esters of a mixture of saturated and polyunsaturated fatty acids responsible for air-drying properties. Painters prepare their oils in such a way as to alter their handling properties, and increase their drying properties. A large number of recipes have come down to us which indicate such practices as the addition of siccatives (traditionally lead-based) under heating,.
This post doc position focuses on the characterization of the optical and mechanical properties of “oil + Pb” systems and their evolution along drying (polymerization) of films.

Activities

Micronic films will be prepared by dip-coating and characterized via environmental ellipsometry and quartz micobalance (QCM). The influence of environmental conditions (humidity, solvent, atmosphere, temperature…) will be evaluated to precise the possible causes of paint layers degradation.

Skills

Applicants must have defended their PhD since less than 2 years, in physics or material sciences with experience in mechanical or optical measurements. Knowledge in coding (Matlab and/ or Python) would be an asset.
Although not strictly necessary, experience in one of the above-mentioned physical methods for thin films would be highly appreciated. The candidate should also have good reporting skills as demonstrated by peer‐reviewed publications.

Work Context

This interdisciplinary project combines cultural heritage, material science, physics and chemistry and will be carried out within three different laboratories, in the heart of Paris:
- LAMS (Laboratory of Molecular and Structural Archeology), dedicated to the investigation of cultural heritage materials.
- LCMCP (Laboratory of Condensed Matter Chemistry, Sorbonne Université/CNRS/ College de France).
- SIMM (Laboratory of Soft matter Sciences and Engineering in Paris, ESPCI, Sorbonne Université, CNRS)

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