Electrical Properties and the Structure of Halogen-Containing Lead Borate Glasses: II. The PbF2–PbO · B2O3 System

被引：0
作者：
I. A. Sokolov
I. V. Murin
N. A. Mel'nikova
A. A. Pronkin
机构：
[1] St. Petersburg State University,
来源：
Glass Physics and Chemistry | 2002年 / 28卷
关键词：
Electrical Conductivity; Electrical Property; Borate; Fluorine; Electric Current;
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学科分类号：
摘要：
The temperature and concentration dependences of the dc electrical conductivity of glasses in the PbF2–PbO · B2O3 system are investigated. It is found that the dependences logσ = f([PbF2]) and Eσ = f([PbF2]) for glasses containing ∼20 and ∼35 mol % PbF2 exhibit kinks, which are interpreted from the standpoint of the microinhomogeneous structure associated with the selective interaction of the components during the synthesis of glasses. Analysis of the transport numbers has revealed that the unipolar fluorine ionic conductivity is observed upon introduction of more than 35 mol % PbF2. It is shown that, in the concentration range from 0 to 35 mol % PbF2, the electric current is provided by both protons and fluorine ions.
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页码：303 / 308
页数：5
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