Date of Award
Master of Science
Civil and Construction Engineering
Dr. Vladimir Tsukruk
Dr. Pnina Ari-Gur
Dr. Daniel Kujawski
Masters Thesis-Open Access
By adoption of classic indentation models (Hertzian, modified Hertzian, Sneddon, JKR), the elastic properties of polymeric material can be measured by AFM. Heterogeneous thin films were fabricated from polymer blends with a wide range of Young's moduli and thermal transition temperature to test the developed procedure. Results show that the micromapping of elastic properties can be obtained concurrently for glassy and rubber phases as well as across the interface with a lateral resolution better than 100 nm. Application of the elasticity micromapping on heterogeneous polymeric materials reveals thermal transition temperature that coincides very well with bulk values. Depth profile also reveals Young's modulus at different indentation depths. Depth profiling allows investigation of the rnicromechanical properties and thermal properties at different depth from surface.
Huang, Zheng, "Development of Mechanical Properties Micromapping for Composite Polymer Systems" (1999). Masters Theses. 4787.