Experimental Investigation of Convective Heat Transfer Between Silicon-Melt and Solidification Front

Alexander Fleisher, Alexey Kovalevsky, Vladimir V. Popov*, Haim Rosenson

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Convective heat transfer between silicon melt and solidification front during Bridgman-type solidification process in a ceramic crucible has been investigated by means of heat balance analysis of the crucible during the process. The effect of aspect ratio on the Rayleigh and Nusselt numbers has been investigated. For a large crucible size (with inner diameter of about 0.50-m), the dependence correlates well with the empiric formula Nu = 0.303 Ra0.279. For a small crucible size (with inner diameter of about 0.20-m), the dependence correlates well with the empiric formula Nu = 0.181 Ra0.285. The experimental data obtained were compared with the available literature experimental and numerical simulation data.

Original languageEnglish
Pages (from-to)621-628
Number of pages8
JournalSilicon
Volume12
Issue number3
DOIs
StatePublished - 1 Mar 2020
Externally publishedYes

Funding

FundersFunder number
GLOBE Specialty Metals (USA)
LINN HT

    Keywords

    • Convective heat transfer
    • Direct solidification
    • Silicon ingot
    • Solidification front

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