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Reaction Between Vitreous Silica and Molten Aluminum
Author(s) -
STANDAGE A. E.,
GANI MARY S.
Publication year - 1967
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1967.tb15049.x
Subject(s) - reaction rate , bismuth , materials science , aluminium , rod , kinetics , antimony , lamellar structure , chemical kinetics , penetration (warfare) , rate equation , chemical engineering , wetting , inorganic chemistry , chemistry , metallurgy , composite material , catalysis , organic chemistry , medicine , alternative medicine , physics , pathology , quantum mechanics , operations research , engineering
Fused silica rods were exposed to molten aluminum and the rate of penetration of the reaction into the silica was measured over a range of temperatures. The reaction obeys the equation:Three phases of alumina are formed during the reaction. The Group V elements, bismuth and antimony, markedly affect the rate of reaction. It is proposed that they form a lamellar surface compound with oxygen and water already absorbed on the silica surface. This compound then controls the reaction kinetics.