Hierarchical percolation and electrical conduction of glasses in the 50WO3-(50 − x)P2O5-xNa2O system

被引：0
|
作者：
S. L. Kraevskii
V. F. Solinov
机构：
[1] Research Institute of Technical Glass,
来源：
Glass Physics and Chemistry | 2006年 / 32卷
关键词：
Ionic Conductivity; Glass Physic; Glass Phys; Percolation Problem; Percolation Parameter;
D O I：
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学科分类号：
摘要：
The validity of the proposed concept of hierarchical percolation is demonstrated using glasses in the WO3-P2O5-Na2O system as an example. The dependence of the electrical conductivity σ = σ0(ξ − ξcrit)μ (where ξ is the percolation parameter) with an exponent μ ≃ 1.4 close to the exponent theoretically predicted for two-dimensional percolation is obtained for the first time. This confirms our hypotheses regarding the two-dimensional percolation nature of electrical conduction over the surface of a phosphate cluster after the percolation threshold is overcome.
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页码：629 / 633
页数：4
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