- Dr. Petr Lukáš: BEER – The Beamline for European Materials Engineering Research
- 4. 11. 2015, 14:50
- lecture room F2, first floor Ke Karlovu 5
- more information
Abstract:
Engineering materials will contribute decisively to the technological progress of mankind in the coming decades. There is presently a transition towards more complex multi-phase and composite materials with microstructures designed by man on ever-smaller scale and tailored for special functionalities. Examples for such materials are high temperature and corrosion resistant intermetallics for gas turbines, lightweight materials for transport application or multi-functional coatings in industrial gas turbines. These novel materials together with modern material production technologies are urgently needed to tackle societal challenges related to sustainable development, particularly future means of transportation and mobility, energy production, distribution and storage as well as medical devices for health care of an aging population, and smart structures for civil engineering.
Progress in development, fabrication, optimization, and degradation monitoring of modern engineering materials is essential for the production of more efficient, more environmentally friendly, and more durable engineering components. To achieve such ambitious goals, employment of science - based approaches towards material design and development as well as adoption of new methods for production, thermomechanical processing, testing and characterization of materials is required.
The unique concept of BEER instrument (Beamline for European Materials Engineering Research) was developed to meet above listed needs and expectations. BEER will be built at the European Spallation Source (ESS) in Lund, Sweden. The diffractometer combines the high brilliance of the long pulsed neutron source with high instrument flexibility. It includes a novel chopper technique that extracts several short pulses out of the long pulse, leading to substantial intensity gain of up to an order of magnitude compared to pulse shaping methods for materials with high crystal symmetry. This intensity gain is achieved without compromising resolution. Materials of lower crystal symmetry or multi-phase materials will be investigated by additional pulse shaping methods. The different chopper set-ups and advanced beam extracting techniques offer extremely broad intensity/resolution ranges. Furthermore, BEER offers an option on simultaneous SANS or imaging measurements without compromising diffraction investigations. This flexibility opens up new possibilities for in situ experiments studying materials processing and performance under operation conditions. To fulfil this task, advanced sample environments, dedicated to thermo-mechanical processing, are foreseen.