Abstract
Real-time Seebeck voltage variations across a Sn−Bi melt during directional solidification in MEPHISTO on USMP-11 show a distinct variation which can be correlated with thrusted firings. The Seebeck voltage measurement is related to the response of the instantaneous average melt composition at the melt-solid interface. This allows a direct comparison of numerical simulations with the Seebeck signals obtained on USMP-1. The effects of such accelerations on composition for a directionally solidifying Sn−Bi alloy have been simulated numerically. USMP-1 acceleration data was used to assist in our choice of acceleration magnitude and orientation.
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