TY - GEN
T1 - Measurement of transient double diffusive convection in aqueous solution with applications in crystal growth
AU - Maruyama, Shigenao
AU - Takahashi, Kiyohiro
AU - Sakai, Seigo
AU - Behnia, Masud
AU - Mori, Kentaro
PY - 2001/12/1
Y1 - 2001/12/1
N2 - In the process of growing crystals in solutions, double diffusive convection due to thermal and solutal gradients occurs. A measurement system comprising a rapid heat-transfer control system and an accurate real-time phase-shifting interferometer has been developed to investigate the transient double diffusive convection. The heat-transfer control system has a small test-cell in which the liquid temperature is controlled by non-equilibrium thermoelectric devices. In-situ measurements of the transient double diffusive convection and crystal growth rates in aqueous solution are carried out by using this system. Transient double diffusive convection is observed directly and clearly. The crystal growth rates in the present experiments show a nearly constant value over the whole area of measured super saturation ratios. The reason for this phenomenon is considered to be the surface roughness induced by rapid cooling.
AB - In the process of growing crystals in solutions, double diffusive convection due to thermal and solutal gradients occurs. A measurement system comprising a rapid heat-transfer control system and an accurate real-time phase-shifting interferometer has been developed to investigate the transient double diffusive convection. The heat-transfer control system has a small test-cell in which the liquid temperature is controlled by non-equilibrium thermoelectric devices. In-situ measurements of the transient double diffusive convection and crystal growth rates in aqueous solution are carried out by using this system. Transient double diffusive convection is observed directly and clearly. The crystal growth rates in the present experiments show a nearly constant value over the whole area of measured super saturation ratios. The reason for this phenomenon is considered to be the surface roughness induced by rapid cooling.
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M3 - Conference contribution
AN - SCOPUS:0346275021
SN - 0791835332
T3 - Proceedings of the National Heat Transfer Conference
SP - 1915
EP - 1922
BT - Proceedings of the 2001 National Heat Transfer Conference Volume 2
T2 - 2001 National Heat Transfer Conference (NHTC2001)
Y2 - 10 June 2001 through 12 June 2001
ER -