Laser ultrasonic and photothermal research of heterogeneous structures
Description: Laser excited acoustic and thermal waves have the interesting property that they can deliver information about material properties on locations which are inaccessible for other techniques. In this research we study reflection, transmission, diffraction and nonlinear effects of thermal and elastic waves from the sub-Hz till GHz range using heterodyne diffraction, stroboscopic interferometric imaging, IR thermography and advanced data processing techniques (Gabor transformation, neural network recognition). In this way, in a non-contact way, it is possible, besides the elastic characterization of materials, to determine their depth sturcture, and to detect and identify sub-surface defects.
Promotor: Christ Glorieux
Key words: laser ultrasonics, photoacoustic and photothermal techniques, ultrafast phenomena, nanostructure, microstructure, non-de
Latest Application date: 2009-12-19
Financing: available
Type of Position: scholarship
Source of Funding: research projects
Duration of the Project : 4 years
Link:
Description: Laser excited acoustic and thermal waves have the interesting property that they can deliver information about material properties on locations which are inaccessible for other techniques. In this research we study reflection, transmission, diffraction and nonlinear effects of thermal and elastic waves from the sub-Hz till GHz range using heterodyne diffraction, stroboscopic interferometric imaging, IR thermography and advanced data processing techniques (Gabor transformation, neural network recognition). In this way, in a non-contact way, it is possible, besides the elastic characterization of materials, to determine their depth sturcture, and to detect and identify sub-surface defects.
Promotor: Christ Glorieux
Key words: laser ultrasonics, photoacoustic and photothermal techniques, ultrafast phenomena, nanostructure, microstructure, non-de
Latest Application date: 2009-12-19
Financing: available
Type of Position: scholarship
Source of Funding: research projects
Duration of the Project : 4 years
Link:
http://perswww.kuleuven.be/~u0005780/vacature_ATF_mei2006_english_smaller_file.pdf
Research group: Department of Physics and Astronomy
To apply to this project go to:
http://phd.kuleuven.be/apply/index.php?contact=u0005780&id=57
Photothermal, dielectric and laser ultrasonic investigation of frequency dependent thermophysical properties of soft mat
Description: The transition from a liquid to a solid state of matter sometimes goes along with a colorful and complex pallet of physical properties, which leads to interesting technological applications. Molecules in liquid crystalline compounds (LCD-displays) are aligning or show a liquid-like layered structure. Supercooled liquids (polymers, heat storage materials, speed-dependent mechanical coupling fluids) behave solid-like or liquid-like depending on the time scale of observation. Some materials (memory alloys) have a shape memory when cooling. In some gels the elastic wave velocity is extremely small, leading to spectacular effects. Using thermal, elastic and dielectric spectroscopy we study these strongly frequency and temperature dependent thermo-elastic phenomena in the sub-Hz – GHz range. For this we use IR thermography, photopyroelectric spectroscopy, dielectric spectroscopy and laser heterodyne diffraction and optical interferometry.
Promotor: Christ Glorieux
Key words: visco-elastic materials, supercooled fluids, thermal, dielectric and elastic properties, all-optical techniques, complex
Latest Application date: 2009-12-19
Financing: available
Type of Position: scholarship
Source of Funding: research project
Duration of the Project : 4 years
Link: http://perswww.kuleuven.be/~u0005780/vacature_ATF_mei2006_english_smaller_file.pdf
Research group: Department of Physics and Astronomy
To apply to this project go to:
http://phd.kuleuven.be/apply/index.php?contact=u0005780&id=58
Please kindly mention scholarization.blogspot.com when applying for this scholarship
Research group: Department of Physics and Astronomy
To apply to this project go to:
http://phd.kuleuven.be/apply/index.php?contact=u0005780&id=57
Photothermal, dielectric and laser ultrasonic investigation of frequency dependent thermophysical properties of soft mat
Description: The transition from a liquid to a solid state of matter sometimes goes along with a colorful and complex pallet of physical properties, which leads to interesting technological applications. Molecules in liquid crystalline compounds (LCD-displays) are aligning or show a liquid-like layered structure. Supercooled liquids (polymers, heat storage materials, speed-dependent mechanical coupling fluids) behave solid-like or liquid-like depending on the time scale of observation. Some materials (memory alloys) have a shape memory when cooling. In some gels the elastic wave velocity is extremely small, leading to spectacular effects. Using thermal, elastic and dielectric spectroscopy we study these strongly frequency and temperature dependent thermo-elastic phenomena in the sub-Hz – GHz range. For this we use IR thermography, photopyroelectric spectroscopy, dielectric spectroscopy and laser heterodyne diffraction and optical interferometry.
Promotor: Christ Glorieux
Key words: visco-elastic materials, supercooled fluids, thermal, dielectric and elastic properties, all-optical techniques, complex
Latest Application date: 2009-12-19
Financing: available
Type of Position: scholarship
Source of Funding: research project
Duration of the Project : 4 years
Link: http://perswww.kuleuven.be/~u0005780/vacature_ATF_mei2006_english_smaller_file.pdf
Research group: Department of Physics and Astronomy
To apply to this project go to:
http://phd.kuleuven.be/apply/index.php?contact=u0005780&id=58
Please kindly mention scholarization.blogspot.com when applying for this scholarship
0 comments:
Post a Comment