Dynamic investigation of polymeric materials [Elektronische Ressource] : reproducible data acquisition and profound mechanical analysis / vorgelegt von: Alexander Michael Gigler

DYNAMIC INVESTIGATION OF POLYMERIC MATERIALS- REPRODUCIBLE DATA ACQUISITIONAND PROFOUND MECHANICAL ANALYSISABTEILUNG EXPERIMENTELLE PHYSIKausUlmDoktoUniversit?tErlangungderDr.Naturwissenschaftenrechtingenzurdesvorgradesvon:rer.Michaelf?rrgelegtFAlexanderakult?tGiglerDissertationHerbder2006nat.IIAmtierender Dekan: Prof. Dr. Klaus Dieter Spindler1. Gutachter: Prof. Dr. Othmar Marti2. Gutachter: Prof. Dr. Paul ZiemannTag der mündlichen Prüfung: 05. Juli 2006AbstractThe investigation of the mechanical properties of surfaces has attracted increasing atten tion over the last decades. At the same time, miniaturization of mechanical devices suchas MEMS - micro electro mechanical systems - has reached nanoscale dimensions. Bymeans of the Atomic Force Microscope (AFM), the mechanical properties at these length scales can be accessed. Theories and simulations describing these nano mechanics, how ever, are not yet conclusive.The reliable and reproducible acquisition of AFM data has often been doubted, since thecalculated results of the measurements did not fully comply with the results from macro scopic experiments. The AFM, however, is able to determine the mechanical behavior ofsurfaces reproducibly if the apparatus is calibrated thoroughly before and after the mea surements are taken. With the Digital Pulsed Force Mode (DPFM) technique, it is possibleto access the entire spectrum of sample dynamics and indentation behavior.