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Activities in Borosilicate Melts: I, Some Melts in the System CaO–B 2 O 3
Author(s) -
KNAPP W. J.,
FLOOD H.
Publication year - 1957
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.1151-2916.1957.tb12612.x
Subject(s) - borosilicate glass , boron , calcium , ionic bonding , fusion , chemistry , mineralogy , thermodynamics , inorganic chemistry , ion , organic chemistry , linguistics , philosophy , physics
Several types of structural models were evaluated for some calcium borate melts by calculating melt activities. The calculated activities were compared with values determined from calorimetric heats of fusion. An ionic model was the most valid for the melts studied. The presence of (BO 2 ) 3 3– rings in melts of calcium metaborate was indicated.