Structure of bismuth borate glasses

被引：0
|
作者：
Stone, CE [1 ]
Wright, AC
Sinclair, RN
Feller, SA
Affatigato, M
Hogan, DL
Nelson, ND
Vira, C
Dimitriev, YB
Gattef, EM
Ehrt, D
机构：
[1] Univ Reading, JJ Thomson Phys Lab, Reading RG6 6AF, Berks, England
[2] Coe Coll, Dept Phys, Cedar Rapids, IA 52402 USA
[3] Univ Chem Technol & Met, BU-1756 Sofia, Bulgaria
[4] Univ Jena, Otto Schott Inst, D-07743 Jena, Germany
来源：
PHYSICS AND CHEMISTRY OF GLASSES | 2000年 / 41卷 / 06期
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D O I：
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中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A neutron diffraction investigation of glasses in the Bi2O3-B2O3 system has been performed as a function of composition which confirms an earlier infrared study suggesting that BO4 tetrahedra are present throughout the glass formation range. The B-O bond length distribution is asymmetric and the fraction of fourfold coordinated boron atoms x(4), does not vary greatly (0.38 -0.48+/-0.07) over the range 31-67 mol% Bi2O3. There are indications that superstructural units may be present even at high Bi2O3 contents.
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页码：409 / 412
页数：4
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