Servicio de Información Comunitario sobre Investigación y Desarrollo - CORDIS

Design and compilation of a prototype for two-dimensional on site X-ray diffraction (2D-XRD)

A mobile measuring system for the on site performance of two-dimensional X-ray diffraction (2D-XRD) was designed and compiled. The system consists of commercially available components like X-ray source, electric power supply and area sensitive detector, and of specially designed components like a positioning system for on site measuring. The device was tested in the laboratory and in field, in the boiler of the Compostilla Power Plant in April 2004 and April 2005, as well as in the Tarragona Refinery in June 2005.

Potential application: The device enables to carry out real structure analysis of materials in the plant components on site.

The two-dimensional X-ray diffraction patterns yield information about grain coarsening and texture changes, and they are directly correlated with the mechanical properties of the material. The primary targeted application within Xpection is inspection and maintenance. Further applications are quality control in production and inspection in other fields than those comprised in Xpection.

End users: Within the Xpection consortium the end users are fossil electric power generation and petro-chemical industry. Further potential end users are electric power generation other than fossil, aircraft manufacturing and maintenance, pulp and paper industry, chemical industry, food industry, foundries, cement and concrete.

Main innovative features: The two-dimensional X-ray diffraction reveals the real crystallographic structure of the material comprising information about the grain size and texture, which are correlated with the ageing state of the material. It is an additional method to the conventional metallographic replica, and it provides additional information not yet comprised in the inspection and maintenance infrastructure. The expected commercial benefits are among others the reduction of replaced material by a non-destructive assessment of the ageing state before rupture.

The market and application sectors are comprised in the spectrum of potential end users mentioned above. Supposed that Xpection will be implemented in 50 % of them, a quite great market is then expected in future for the inspection performing industry, the XRD components manufacturers and for the research organisations providing further developments and improvements.

Potential barriers: The price for the mobile 2D-XRD might be too high, especially in the initial state of application. The consortium keeps looking for more economic alternatives even after the end of the project.

Reported by

Fraunhofer-Institut für Chemische Technologie ICT
Joseph-von- Fraunhofer Str. 7
76327 Pfinztal
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