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On the migration of dissolved aluminium in NaFAlF3Al2O3 melts

✍ Scribed by Jomar Thonstad; Ryszard Oblakowski

Publisher
Elsevier Science
Year
1980
Tongue
English
Weight
292 KB
Volume
25
Category
Article
ISSN
0013-4686

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✦ Synopsis

Aluminium dissolved in cryolite-alumina melts migrates in the direction of the positive pole by passage of current . By a modified moving boundary technique the dissolved metal was found to separate into two zones with different mobilities . For the cryolite composition at 11100°C the apparent mobilities were appros 21 x 10 -i and 3 x 10 -°ctaa -/V cm -' . The mobilities increased strongly with increasing temperature and increasing NaF/AIF 5 ratio .

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