The public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, includ...

The structure and strength of Al−xSi−2wt.%Cu (x = 15, 17 20wt.%) alloys obtained by directional solidification at a rate 0.1 0.8mm/s are investigated. It is shown that the tensile increases with an increase in due to decrease size eutectic silicon transformation its crystal flake into fine-fiber one. In addition, there was share intermetallic phase, exceeding reduced amount α-Al phase. An conte...

This paper presents an experimental validation of in situ ultrasound technique for tracking the solid–liquid interface during directional solidification photovoltaic silicon. Ultrasound bursts are introduced from top into melt via tip a carbon glass waveguide directly plunged liquid. Several runs have been conducted using same thus demonstrating its reusability, mechanical resilience and approp...

Numerical simulation is a comprehensive tool in modern process development which is extensively used for promotion of crystal growth processes. Multi-crystalline silicon is an important material with advantages of low-production cost and high conversion efficiency of PV solar cells. The control of grains as well as the grain boundaries is particularly important to the crystal quality and thus t...

The roles of traveling magnetic fields (TMFs) within the transport phenomena during directional solidification nickel-based superalloys were simulated. evolution thermal field, flow field and solid-liquid interface morphology process under both natural forced convection conditions also simulated compared. strength TMFs window that suppresses interfacial front in melt was quantified. association...

Phase formation and microstructure selection during solidification in ?-TiAl alloys are highly relevant, both with respect to the texture of cast directional solidification, which allows obtain a unique combination properties. However, cooling room temperature, solidifying phases transform low-temperature phases, mask prior situation solidification. A new inductive crucible-free zone melting fu...

The present investigation focuses on the solidification of peritectic binary alloys in the systems Fe–Mn and Fe–C by utilizing phase-field simulations. Isothermal and directional solidification conditions were simulated with this approach and the following aspects were investigated: the phases evolution during the peritectic transformation close to the peritectic temperature for the Fe–Mn alloy...