The selection and configuration of building materials for optimal energy efficiency in a building require some assumptions and models for the thermal behavior of the utilized materials. Although the models for many materials can be considered acceptable for simulation and calculation purposes, the work for modeling the real time behavior of phase change materials is still under development. The...

One of the key challenges phase change memory (PCM) is its high power consumption during reset operation, when material (typically Ge2Sb2Te5, i.e., GST) heats up to ∼900 K or more in order melt. Here, we study temperature-dependent behavior PCM devices by probing at ambient temperatures from 80 400 K. We find that different device structures exhibit contrasting behavior. The our confined-type n...

Equal channel angular rolling (ECAR) process is one of the severe plastic deformation (SPD) methods that have been used to make ultra-fine grain (UFG) materials with improving the mechanical properties of samples. After performing the process at several paths, a large strain is applied to the material that can cause decreasing the grain size and improving the mechanical and physical properties ...