Journal of the Ceramic Society of Japan
Online ISSN : 1348-6535
Print ISSN : 1882-0743
ISSN-L : 1348-6535
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Composition dependence of absorption edge energy of borate glasses containing a large amount of Bi2O3
Kohei FUKUMINaoyuki KITAMURAHiromitsu KOZUKA
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2019 Volume 127 Issue 8 Pages 538-544

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Abstract

Absorption edge energy has been studied in Bi2O3–B2O3, and (Li2O, Na2O, K2O, CaO, BaO, ZnO, Ga2O3 and Nb2O5)–Bi2O3–B2O3 glasses containing a large amount of Bi2O3. It was found that the absorption edge energy obeyed Duffy’s theoretical basicity formula, that is, the additivity rule with glass composition. The additivity factor depended on electronegativity of each constituent atom, except bismuth. The additivity factor of Bi2O3 was much smaller than that expected from electronegativity. The small value of additivity factor of Bi2O3 was discussed on the basis of Bi–O–Bi bond formation.

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