Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Alexander Laschitsch"'
Publikováno v:
Journal of Applied Physics. 85:3759-3765
We report on the application of quartz crystal resonators for friction measurements in the MHz regime. The dissipative processes are studied by approaching a small sphere to the quartz surface and measuring the shifts in frequency and bandwidth as a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f65e59f6f14db48bf1e9766d1d0a32f6
https://doi.org/10.1063/1.369745
https://doi.org/10.1063/1.369745
Autor:
Alexander Laschitsch, Charles Bouchard, Jürgen Rühe, Martin Schimmel, Jörg Habicht, Diethelm Johannsmann
Publikováno v:
Macromolecules. 32:1244-1251
We have investigated the sorption behavior of polystyrene brushes with thicknesses of 10−200 nm in toluene vapor. The sorption curve displays a kink, which is attributed to the solvent-induced glass transition. The derivative of the sorption curve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a816a0e12a78e45014d3b8402b9071bd
https://doi.org/10.1021/ma980743t
https://doi.org/10.1021/ma980743t
Autor:
Diethelm Johannsmann, Béatrice Guerrier, Charles Bouchard, Catherine Allain, Anne-Claire Saby, Alexander Laschitsch
Publikováno v:
Journal of Applied Polymer Science. 69:2235-2246
We report on desorption measurements on polymeric thin films coated onto quartz crystal resonators. Due to the high sensitivity of quartz crystal microbalances, the experiments can be performed on very thin films, which have small diffusion time cons
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c8a93560ed545da3ab45f3f5d4864b3
https://doi.org/10.1002/(sici)1097-4628(19980912)69:11<2235::aid-app16>3.0.co
https://doi.org/10.1002/(sici)1097-4628(19980912)69:11<2235::aid-app16>3.0.co
Autor:
Larry E. Bailey, Diethelm Johannsmann, Curtis W. Frank, George W. Tyndall, Alexander Laschitsch
Publikováno v:
Applied Physics Letters. 78:2601-2603
The high-frequency frictional properties of thin lubricating layers of perfluoropolyethers coated onto the surface of quartz-crystal resonators were probed by measuring the increase in resonance bandwidth when the quartz surface comes into contact wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b68aaaf4b362a7f96800ff9cc730f966
https://doi.org/10.1063/1.1360781
https://doi.org/10.1063/1.1360781
Publikováno v:
Proceedings of the 1999 Joint Meeting of the European Frequency and Time Forum and the IEEE International Frequency Control Symposium (Cat. No.99CH36313).
We report on the interaction between quartz resonators and spheres approaching one of their surfaces. As firm contact is established, the resonance frequency increases, indicating an increased stiffness of the quartz-sphere system. When contact is ju
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::efb6bb35edf5993f7b287cb71e3bebce
https://doi.org/10.1109/freq.1999.840818
https://doi.org/10.1109/freq.1999.840818
Employing quartz crystal resonators, we have measured the elastic compliance of thin polymers films doped with an azobenzene dye. From a comparison of the shifts of resonance frequency on different acoustic overtones of the resonator, the films’ el
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6e8d01839aaa1f2d1a133727b3ca9b32
https://publishup.uni-potsdam.de/frontdoor/index/index/docId/18925
https://publishup.uni-potsdam.de/frontdoor/index/index/docId/18925
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Akademický článek
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