Transition from regular to irregular thermal wave by coupling of natural convection with rotating flow in Czochralski crystal growth

Experimental results are presented on the oscillatory convection of mercury melts induced by coupling of natural convection with crucible rotation in a Czochralski crystal growing configuration. Regular baroclinic thermal waves are observed at thermal Rossby number, Ro t≪1. These regular waves give...

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Veröffentlicht in:Journal of crystal growth 1999-02, Vol.197 (1), p.297-306
Hauptverfasser: Lee, Y.-S., Chun, Ch.-H.
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description Experimental results are presented on the oscillatory convection of mercury melts induced by coupling of natural convection with crucible rotation in a Czochralski crystal growing configuration. Regular baroclinic thermal waves are observed at thermal Rossby number, Ro t≪1. These regular waves give way to irregular waves as Ro t increases. The amplitude of temperature fluctuation underneath a fixed disk as a model crystal increases significantly after the transition to the irregular wave.
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subjects Applied sciences
Baroclinic thermal wave
Cross-disciplinary physics: materials science
rheology
Crucible rotation
Czochralski crystal growth
Exact sciences and technology
Growth from melts
zone melting and refining
Materials science
Metals. Metallurgy
Methods of crystal growth
physics of crystal growth
Oscillatory convection
Physics
title Transition from regular to irregular thermal wave by coupling of natural convection with rotating flow in Czochralski crystal growth
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