Date of Graduation
Master of Science in Mechanical Engineering (MSME)
Second Committee Member
Simulation, Spinodal Decomposition, Thin-film
Preferential wetting can have a significant impact on the kinetics of phase separation in certain systems. The depletion of the wetting component can simply alter domain growth rates or change the structure entirely. In this thesis, we employ a Cahn-Hilliard model to study the evolution of binary thin-films with symmetric surface wetting. Three possible morphologies were identified: discrete, bicontinuous, and a novel quasi-2D bicontinuous structure in which both phases retain continuity throughout the volume as well as on the center xy plane. Using a continuity factor, regions of film thickness versus blend composition were classified as producing a certain morphology. This region was then extended to further explore the possibilities offered by symmetric surface wetting. This information can guide future researchers to novel morphologies.
Wise, Michael Brian, "Effects of Surface-Directed Spinodal Decomposition on Binary Thin-Film Morphology" (2018). Theses and Dissertations. 2807.