Integrated Calorimetry and Vibrational Spectroscopies

• Fachliche Zuordnung: Werkstofftechnik
• Förderung: Förderung in 2015
• Projektkennung: Deutsche Forschungsgemeinschaft (DFG) - Projektnummer 272676342

Integrating Differential Scanning Calorimetry with vibrational spectrometer from 0,01 to 4000 cm-1 will allow a fully multiscale approach of materials. In such experiment the calorimeter will give the energetic response of matter and the vibrational spectrometers will observe its elastic and structural evolution. From 0,01 to 10 cm-1 the Brillouin inelastic scattering is sensitive to long range order properties like volume and elastic moduli, 5 to 200 cm-1 the Raman Terahertz inelastic scattering is related to intermolecular bonds and from 200 to 4000 cm-1 to internal molecular vibrations. Doing these observations simultaneously in situ is useful to study any transition that implies several order parameters or exhibit relaxation phenomena. For example they will help to understand phenomena as different as order ¿ disorder phase transition, glass transition or crystallization. Such tool unthinkable in the past is now possible due to new technologic improvements especially: the new 3D Bragg gratings, that allow easier recording of Raman spectra in the 5 to 200 cm-1 region, high sensitivity cameras with a better quantum efficiency allowing quick data recording in the same time scale that the calorimetric measurements, narrow intense solid lasers at low wavelength 488 nm to avoid black body emission. This setup will be unique in the world.

• DFG-Verfahren: Forschungsgroßgeräte
• Großgeräte: Integrated Calorimetry and Vibrational Spectroscopies
• Gerätegruppe: 8660 Thermoanalysegeräte (DTA, DTG), Dilatometer
• Antragstellende Institution: Friedrich-Alexander-Universität Erlangen-Nürnberg
• Leiter: Professor Dr. Dominique de Ligny