Date of Award
Doctor of Philosophy (PhD)
Materials Science and Engineering
Dr. M. Kennedy
Dr. J. Ballato
Dr. V. Blouin
Dr. L. Saraf
Reports of nanoscale metallic multilayers (NMM) performance show a relatively high strength and radiation damage resistance when compared their monolithic components. Hardness of NMMs has been shown to increase with increasing interfacial density (i.e. decreasing layer thickness). This interface density-dependent behavior within NMMs has been shown to deviate from Hall-Petch strengthening, leading to higher measured strengths during normal loading than those predicted by a rule of mixtures. To fully understand why this occurs, other researchers have looked at the influence of the crystal structures of the component layers, orientations, and compositions on deformation processes. Additionally, a limited number of studies have focused on the structural stability and possible performance variation between as-deposited systems and those exposed to mechanical and thermal loading.
Economy, David Ross, "Performance of Nanoscale Metallic Multilayer Systems Under Mechanical and Thermal Loading" (2015). All Dissertations. 1480.