
Oak Ridge National Labs |
Research Interests: Advance solidification processing through synergy between
property measurement, sensor technology, process monitoring, computational
analysis, and experimental research.Free-surface Flows: The implementation of accurate boundary conditions for
velocity and pressure enhance solution algorithms for free-surface flows.
Microporosity Prediction: A model for microporosity prediction during casting
solidification was developed based on experimental evidence for pore morphology
and thermodynamic considerations for pressure drop.
Investment Casting: Pioneered the measurement of viscoelastic properties of waxes.
Distortion of wax patterns can be qualitatively predicted using viscoelastic models.
Infrared Processing: After considering sintering effects and emissivity variation
with surface condition in the infrared (IR) process, solidification patterns have
been predicted.
Lubricant Application: The cooling effect of lubricant on the die and its
insulating effect during casting solidification, are investigated using heat flux sensors.