Double diffusive convection during growth of lead bromide crystals

We have carried out detailed experiments on the growth of pure and doped lead bromide (PbBr 2) crystals in 1-g conditions to evaluate the effect of thermo-solutal convection on the crystal homogeneity. The thermal and solutal Rayleigh numbers were changed by altering the aspect ratio of the growth a...

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Veröffentlicht in:Advances in space research 1993-07, Vol.13 (7), p.195-201
Hauptverfasser: Singh, N.B., Mazelsky, R., Coriell, S.R., Glicksman, M.E., Santoro, G.J., Duval, W.M.B., Sokolowski, R.
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container_end_page 201
container_issue 7
container_start_page 195
container_title Advances in space research
container_volume 13
creator Singh, N.B.
Mazelsky, R.
Coriell, S.R.
Glicksman, M.E.
Santoro, G.J.
Duval, W.M.B.
Sokolowski, R.
description We have carried out detailed experiments on the growth of pure and doped lead bromide (PbBr 2) crystals in 1-g conditions to evaluate the effect of thermo-solutal convection on the crystal homogeneity. The thermal and solutal Rayleigh numbers were changed by altering the aspect ratio of the growth ampoule and the concentration of the silver bromide impurity in the lead bromide. A preliminary numerical analysis was also carried out which provided the boundary conditions for the minimum needed during the diffusion controlled growth of lead bromide crystals.
doi_str_mv 10.1016/0273-1177(93)90372-I
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title Double diffusive convection during growth of lead bromide crystals
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