|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Interface-driven Phenomena in Solids: Thermodynamics, Kinetics and Chemistry
||Microstructure Evolution and Consolidation Kinetics Prediction in Powder Materials during Field Assisted Sintering Technique
||Sudipta Biswas, Vikas Tomar
|On-Site Speaker (Planned)
Field assisted sintering technology (FAST) is a disruptive manufacturing technique for developing new materials in a cost effective manner. Understanding interface evolution along with densification mechanism and grain growth kinetics during the process is of immense importance. Current work captures the microstructural changes including interface formation between particles and it’s evolution over time as the powder particles compact into a polycrystalline structure. Phase field modeling approach has been adopted with additional contribution of interfacial energy, temperature and elastic loading being incorporated. It has been observed that densification during powder compaction is governed by surface and grain boundary diffusion. It has also been noticed that at initial stage individual grain increases in size until it reaches adjacent grains. Once adjacent grains start interacting with each other, grain boundary diffuses and the grain size starts reducing. Towards the end of the process as two or more grain merge into a single grain.
||Planned: A print-only volume