Field Activated Sintering Technology: Multi-Physics Phenomena Modeling

ISBN-13: 9783838342306 / Angielski / Miękka / 2010 / 108 str.

Singapore) Jing Zhang (National Metrology Centre

Opis

The field activated sintering technique (FAST) is a powder consolidation process via the application of pulsed current and pressure. Compared with conventional hot pressing and hot isostatic pressing, FAST has demonstrated a rapid densification process that has the potential to minimize grain growth, which is crucial to achieving excellent physical properties. This work covers the physical phenomena, multi-scale analytical and numerical models, experimental studies, and application of FAST processing. Specifically, a coupled thermal-electric-densification framework for the design and optimization of FAST type processing has been proposed and implemented into a finite element package. A discrete finite element method is also developed to determine the effective thermal conductivity in a particulate system with realistic microstructure. Moreover, FAST simulation of a hip joint replacement is demonstrated.

O autorze

Dr. Jing Zhang is Assistant Professor in the Department of Mechanical Engineering at the University of Alaska Fairbanks. His research interests include renewable energy and multi-scale modeling. He was the recipient of NSF/EPSCoR Early Career Award and Air Force Summer Faculty Fellowship. His research is supported by NSF, DOE, NASA and AFRL.