scholarly journals Ionic Conductivity in Li2O-Al2O3-SiO2Based Glasses and Glass Ceramics

1995 ◽  
Vol 50 (12) ◽  
pp. 1151-1155 ◽  
Author(s):  
P. Lunkenheimer ◽  
G. Gerhard ◽  
F. Drexler ◽  
R. Böhmer ◽  
A. Loidl
Keyword(s):  
Ionic Conductivity ◽  
Ceramic Sample ◽  
Glass Ceramics ◽  
Dc Conductivity ◽  
Complex Conductivity ◽  
Electrical Modulus ◽  
Loss Peak ◽  
Lithium Aluminosilicate ◽  
Precursor Glass

The complex conductivity of lithium aluminosilicate based glasses and glass-ceramics (Zerodur from Schott) has been investigated in a broad range of temperatures (200 K < T < 700 K) and frequencies (10 mHz<v<2.5 THz). The data are presented in terms of the conductivity and the electrical modulus formalisms. The width of the modulus loss peak as measured for the ceramic sample is broader than that determined for its precursor glass. This result is shown to be associated with the considerably smaller dc conductivity of this material.

Anderson-Stuart Model to Analyze AC and DC Conductivity of Lithium Zinc-Silicate Glass / Glass-Ceramics

2007 ◽  
Vol 280-283 ◽  
pp. 919-924
Author(s):  
M.S. Jogad ◽  
V.K. Shrikhande ◽  
A.H. Dyama ◽  
L.A. Udachan ◽  
Govind P. Kothiyal
Keyword(s):  
High Frequency ◽  
Glass Ceramics ◽  
Low Frequency ◽  
Frequency Region ◽  
Dc Conductivity ◽  
Frequency Range ◽  
High Frequency Region ◽  
Dc Conductivities ◽  
Conductivity Variation ◽  
Different Temperatures

AC and DC conductivities have been measured by using the real (e¢) and imaginary (e¢¢) parts of the dielectric constant data of glass and glass-ceramics (GC) at different temperatures in the rage 297-642K and in the frequency range 100 Hz to 10 MHz. Using Anderson –Stuart model, we have calculated the activation energy, which is observed to be lower than that of the DC conductivity. The analysis for glass/glass-ceramics indicates that the conductivity variation with frequency exhibits an initial linear region followed by nonlinear region with a maximum in the high-frequency region. The observed frequency dependence of ionic conductivity has been analyzed within the extended Anderson–Stuart model considering both the electrostatic and elastic strain terms. In glass/glassceramic the calculations based on the Anderson-Stuart model agree with the experimental observations in the low frequency region but at higher frequencies there is departure from measured data.

Dielectric Response and dc Conductivity in Polyvinylbutyral: An Analysis in the Complex Conductivity Plane

2001 ◽  
Vol 40 (Part 1, No. 10) ◽  
pp. 6077-6080 ◽  
Author(s):  
Simón Santos ◽  
Iris Salazar ◽  
Catalino Gómez
Keyword(s):  
Dielectric Response ◽  
Dc Conductivity ◽  
Complex Conductivity

57Fe and 119Sn Mössbauer, XRD, FTIR and DC conductivity study of Li2O Fe2O3SnO2P2O5 glass and glass ceramics

2018 ◽  
Vol 765 ◽  
pp. 121-127 ◽  
Author(s):  
M.Y. Hassaan ◽  
M.G. Moustafa ◽  
K. Osouda ◽  
S. Kubuki ◽  
T. Nishida
Keyword(s):  
Glass Ceramics ◽  
Dc Conductivity
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