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THE COMPOSITION OF BARIUM GLASS 1
Author(s) -
Montgomery Robert J.
Publication year - 1921
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.1151-2916.1921.tb17355.x
Subject(s) - barium , composition (language) , mineralogy , alkali metal , chemical composition , materials science , analytical chemistry (journal) , chemistry , optics , physics , thermodynamics , metallurgy , philosophy , environmental chemistry , linguistics , organic chemistry
In this paper the relation between the composition of barium glasses and the optical constants is discussed as well as the general rules for proportioning batches. The important results and conclusions are given by the figures. After the required amounts of BaO and B 2 O 3 have been obtained from figures 2 and 3, the amount of SiO 2 can be obtained from figure 5, the alkali and ZnO from figure 7 and the Al 2 O 3 from figure 8. If the total exceeds 100, the ZnO and the Al 2 O 3 may be reduced. The proportions cannot be as definitely expressed as in the case of lead glasses and more experience is required to enable one to change the optical properties at will.