STRUCTURE TRANSPORT RELATIONSHIPS IN LEAD BORATE GLASSES CONTAINING V2O5

被引：29

作者：

DOWEIDAR, H ^{[1
]}

GOHAR, IA ^{[1
]}

MEGAHED, AA ^{[1
]}

ELDAMRAWI, G ^{[1
]}

机构：

[1] MANSOURA UNIV,FAC SCI,DEPT PHYS,MANSOURA 35516,EGYPT

来源：

SOLID STATE IONICS | 1991年 / 46卷 / 3-4期

关键词：

D O I：

10.1016/0167-2738(91)90226-2

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：

dc conductivity and IR spectra of PbO-B2O3 and PbO-V2O5-B2O3 glasses have been investigated. The results are correlated with the NMR data of PbO-B2O3 glasses. The activation energy for conduction is found to be in direct proportionality with the fraction of BO4 groups. The conductivity, which is attributed to Pb2+ ions, depends mainly on the ratio O/B. V2O5 is proposed to modify the borate network. The glasses containing V2O5 show relatively higher conductivities and lower activation energies than those free of V2O5.

引用

页码：275 / 281

页数：7

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