Inclusion Removal in Molten Magnesium by Pulsed Electric Current

Electric field in SPS: geometry and pulsed current effects

Electrical heating of the graphite die and punch assembly is a unique feature of the spark plasma sintering (SPS) process. The high currents needed to heat the die, despite its low resistance, can produce an electric field across the ceramic specimens that may be enough to induce field assisted sintering. Despite the large number of publications of SPS, the electric field intensity has not been...

Electrochemical Synthesis of Magnesium Hexaboride by Molten Salt Technique

The present work reports electrochemical synthesis of MgB6 from molten salts using the precursor consists of LiF-B2O3-MgCl2. An attempt has been made to synthesize metastable phase MgB6 crystal by electrolysis method. DTA/TGA studies were made to determine the eutectic point of the melt and it was found to be around 900°C. The electrolysis was performed at 900°C under argon atmosphere, at curre...

Enhancing Industrial Processes by Pulsed Electric Fields

Pulsed Electric Field (PEF) processing works through the process of electroporation in cells – destroying the cell membranes through the application of short, very high voltage pulses across a liquid. PEF processing can also improve the performance of industrial processes such as the removal of water from sludge, or the extraction of oils, sugars, or starches from plants, because the ruptured c...

Sintering and Heat Treatment of Titanium Alloys by Pulsed Electric Current Sintering

Inclusion Removal by Bubble Flotation in Continuous Casting Mold

Fundamentally-based computational models are developed to quantify the removal of inclusions by bubbles during the continuous casting of steel. First, the attachment probability of inclusions on a bubble surface is investigated based on fundamental fluid flow simulations, incorporating the turbulent inclusion trajectory and sliding time of each individual inclusion along the bubble surface as a...