1957
DOI: 10.1002/hlca.19570400706
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Contribution à l'étude du comportement de la silice dans les bains de cryolithe fondue

Abstract: Ifitroductio fi.L'intBrkt que prBsente, tant du point de vue thdorique que de celui de l'industrie, la connaissance du comportement des oxydes dissous dans la cryolithe a suscite de nombreux travaux dans cette voie. L'Btude de la silice, bien que ce composant soit toujours present en petites quantities dans les bains de 1'6lectrolyse de l'aluminium, a 6th cependant un peu dBlaissBe. Cela, sans doute a cause de la complexit6 du probl&me. E n effet, la siliee reagit avec la cryolithe en donnant du fluorure de si… Show more

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Cited by 17 publications
(14 citation statements)
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“…A great deal of effort has been reported on the electrodeposition of silicon. Many workers have employed either silica or fluorosilicates as the solutes [2][3][4][5][6][7] and obtained either amorphous silicon or metal silicides. Cohen and Huggins [8] were the first to prepare both mono and polycrystalline silicon by electrolysis of the alkaline fluorosilicates in a LiF-KF eutectic.…”
Section: Silicon (Si)mentioning
confidence: 99%
“…A great deal of effort has been reported on the electrodeposition of silicon. Many workers have employed either silica or fluorosilicates as the solutes [2][3][4][5][6][7] and obtained either amorphous silicon or metal silicides. Cohen and Huggins [8] were the first to prepare both mono and polycrystalline silicon by electrolysis of the alkaline fluorosilicates in a LiF-KF eutectic.…”
Section: Silicon (Si)mentioning
confidence: 99%
“…this decreases the decomposition potential to −0.73 V and −0.57 V for CO2 and CO release, respectively. 7 The experimentally measured deposition potentials [8][9][10][11][12][13][14][15][16] are considerably different from these calculated values. For example, the decomposition potential on graphite cathode has been reported as −0.95 ± 0.05 V by several authors, [8][9][10][11][12][13][14][15][16] which is approximately 0.25 V larger than the predicted potential.…”
mentioning
confidence: 69%
“…10 Another study reported the electrodeposition of Si in cryolite-silica electrolyte and formed Al-Si alloy on a graphite cathode at 980 °C. 11 Silicon in aluminium may also come from some exchange reactions which have been reported to be possible reasons behind current efficiencies of Si higher than 100% 6,11 .…”
mentioning
confidence: 99%