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Refining in the Glassmelting Process
Author(s) -
NĚMEC LUBOMlAR
Publication year - 1977
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.1151-2916.1977.tb15528.x
Subject(s) - refining (metallurgy) , bubble , nucleation , dissolution , soda lime , lime , soda lime glass , process (computing) , materials science , mineralogy , chemical engineering , thermodynamics , chemistry , metallurgy , mechanics , composite material , computer science , physics , engineering , operating system
Refining mechanisms for a soda‐lime glassmelt containing bubbles are proposed, based on photographic observations and data in literature. The equation expressing the removal of bubbles from the glassmelt by ascension has been derived from a linear relation between bubble size and time. Experimental and theoretical studies have shown that heterogeneous bubble nucleation occurs during refining. An additive relation between SiO 2 (sand) dissolving tune and the theoretical refining time resulting from heterogeneous bubble nucleation has been verified for As 2 O 3 + NaNO 3 , Na 2 SO 4 , and NaCl additions to a soda‐lime glass batch.