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Accueil du site / Actualités / TECHNOLOGY OFFER : Electron Backscatter Diffraction (EBSD) for analysis of materials in cultural heritage sector

25 novembre 2010 | Veille marchés et technologie

TECHNOLOGY OFFER : Electron Backscatter Diffraction (EBSD) for analysis of materials in cultural heritage sector

An Italian research team has developed know-how in the application of EBSD to the microstructural characterization of constituent materials of cultural heritage. Manufacturing processes influence the crystal orientations and microstructures of the materials. The EBSD enables a better understanding of the thermal and working history of an object, allowing the reconstruction of its production process. The team is looking for private and public organizations for new tests and financial resources.

Description :

Electron Backscatter Diffraction (EBSD) is a technique for obtaining crystallographic information from samples in the scanning electron microscope (SEM). The EBSD technique is proposed as a new methodology for the study of the constituent materials of historical artefacts. The accurate characterization of different materials can bring a more complete comprehension to many aspects of the production technique of the artefacts (production period and site, raw material sources, manufacturing processes, ancient recipes). Each crystalline particle can diffract the electrons of an SEM beam. Such diffraction produces a recordable EBSD pattern which depends directly on the crystal lattice of the analyzed particle. Each pattern is characteristic of the crystal structure and orientation of the point it was generated from, and can be used to measure the crystal orientation and discriminate between different materials. In phase recognition mode EBSD is used to discriminate crystallographically dissimilar phases. When the beam moves in a grid across a polycrystalline sample, the crystal orientation is automatically and rapidly measured point by point, and the resulting map will reveal the constituent grain morphology, orientations, boundaries, the occurrence of twins, the recrystallized volume fraction, etc. In this way, a complete and quantitative representation of the sample microstructure can be established. The research team has developed a specific know-how in the sector of the constituent materials of cultural heritage as ancient pottery and bronze alloy objects.

Innovations and advantages of the offer

EBSD represents an investigative technique capable of producing information not always obtainable by other conventional analytical methods (XRD, EMPA, TEM, etc.).

The advantages are : 1) spatial resolution of lower than 0.2 micron ; 2) possibility to easily recognize the desired point of analysis using conventional BSE imaging ; 3) fast automated acquisition of data points on large areas.

Current and Potential Domain of Application Micro-structural characterization of all kind of cristalline materials.


* Type of partner sought : Academy, research organisations, public and private institutions (museums, laboratories, etc.) involved in cultural heritage studies.

* Specific area of activity of the partner : Materials analysis and technology, measurement methods.

* Task to be performed by the partner sought : Technical cooperation for further development in testing of new applications and financial support in testing of new applications.

  • Contact Details

Organisation Oseo Innovation (PIC-SOF)

Mrs Fabienne Mazeau

87068 LIMOGES Phone +33 5 55 33 08 20

Pôle Européen
de la Céramique

ESTER Technopole
1, avenue d'ESTER
87069 Limoges Cedex

Tél. : +33(0) 5 55 38 16 21
Fax : +33(0) 05 55 38 18 62


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