A STUDY OF THE MIXED ALKALI EFFECT BY FREQUENCY-DEPENDENT CONDUCTIVITY IN LI2O-NA2O-P2O5 GLASSES

被引：31

作者：

CHEN, R

YANG, R

DURAND, B

PRADEL, A

RIBES, M

机构：

[1] Laboratoire de Physicochimie des Matériaux Solides U.R.A. D0407, Université de Montpellier II

来源：

SOLID STATE IONICS | 1992年 / 53卷 / pt 2期

关键词：

D O I：

10.1016/0167-2738(92)90312-D

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：

0.5[(I-x)Li2O-x Na2O]-0.5 P2O5 (0 less-than-or-equal-to x less-than-or-equal-to 1) glasses were investigated by DSC and impedance spectroscopy. A classical mixed alkali effect was shown. This effect was further explored by frequency-dependent conductivity. The temperature dependence of the real part of conductivity sigma(ac) was used to determine an activation energy [E(ac)] independent of frequency. The dependence of conductivity sigma(ac) and of activation energy [E(ac)] on the composition x was investigated. In both cases, a remarkable mixed alkali effect was shown. The coupling model was used to determine a beta = [E(ac)]/Ed. parameter which appears to be independent of the composition.

引用

页码：1194 / 1199

页数：6

共 18 条

[1] THE DETERMINATION OF HOPPING RATES AND CARRIER CONCENTRATIONS IN IONIC CONDUCTORS BY A NEW ANALYSIS OF AC CONDUCTIVITY [J].

ALMOND, DP ;

DUNCAN, GK ;

WEST, AR .

SOLID STATE IONICS, 1983, 8 (02) :159-164

[2]

BOKSAY Z, 1991, J NON-CRYST SOLIDS, V129, P292, DOI 10.1016/0022-3093(91)90106-G

[3] DIFFUSION WITH MEMORY - A MODEL FOR MIXED ALKALI EFFECTS IN VITREOUS IONIC CONDUCTORS [J].

BUNDE, A ;

INGRAM, MD ;

MAASS, P ;

NGAI, KL .

JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, 1991, 24 (15) :L881-L886

[4] MIXED ALKALI EFFECTS IN IONIC CONDUCTORS - A NEW MODEL AND COMPUTER-SIMULATIONS [J].

BUNDE, A ;

INGRAM, MD ;

MAASS, P ;

NGAI, KL .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 1991, 131 :1109-1112

[5] MIXED ALKALI GLASSES - THEIR PROPERTIES AND USES [J].

DAY, DE .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 1976, 21 (03) :343-372

[6]

DOI A, 1991, J MATER SCI LETT, V10, P420, DOI 10.1007/BF00728052

[7] THE DIFFUSION-CONTROLLED RELAXATION MODEL FOR IONIC TRANSPORT IN GLASSES [J].

ELLIOTT, SR ;

OWENS, AP .

PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICS ELECTRONIC OPTICAL AND MAGNETIC PROPERTIES, 1989, 60 (06) :777-792

[8] JUMP-RELAXATION MODEL YIELDS KOHLRAUSCH-WILLIAMS-WATTS BEHAVIOR [J].

FUNKE, K ;

HOPPE, R .

SOLID STATE IONICS, 1990, 40-1 :200-204

[9] MOBILE-ION CONCENTRATIONS AND MIXED-ALKALI EFFECTS IN BETA-ALUMINA SOLID ELECTROLYTES [J].

INGRAM, MD ;

MOYNIHAN, CT .

SOLID STATE IONICS, 1982, 6 (04) :303-310

[10]

INGRAM MD, 1987, PHYS CHEM GLASSES, V28, P215

← 1 2 →