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Investigation of convection in the solution zone at the growth of CdTe by THM

✍ Scribed by Dipl.-Phys. K. Schwenkenbecher; Professor P. Rudolph

Publisher
John Wiley and Sons
Year
1985
Tongue
English
Weight
286 KB
Volume
20
Category
Article
ISSN
0232-1300

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✦ Synopsis

Investigation of Convection in the Solution Zone at the Growth of CdTe by THM A i l iiivestigatioii of the axial tempcraturc distribution i r i the solution zone at THM growth of CdTc is prcscritcd. The results support the assumption, t h a t density diffcrences coused by coiicer~tration differences there are a substantiai contribution t o convection in the zonc. The concentrat,ion Hayleigh-number and the needed concentration expansion coefficient of the real experimental condition are estimated.

Die axiale Tcmperaturvcrteilung in der Schmeizlosungszone bei der THM-Ziichtung voii CdTe wird untersucht. Die Resultate unterstutzen dic Annahme, da13 der durch Konzentrationsunterschiede hervorgerufene Uichteunterschied einen weseritlichen Beitrag zur Konvektioii in der Zone liefert. Fur den gemessenen Fall werden die Werte der Konzencrationsrayleighzahl und der dazu erforderliche Konzentrationsausdehnungskoeffizient bercchnet.

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