Journal ArticleDOI
Dielectric properties of water/alumina
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TLDR
The real and imaginary components of the dielectric constant of activated alumina powder containing various quantities of water have been measured at temperatures from 0-29.8° C, and at frequencies from 40 c/s to 100 Mc/s as discussed by the authors.Abstract:
The real and imaginary components of the dielectric constant of activated alumina powder containing various quantities of water have been measured at temperatures from 0-29.8° C, and at frequencies from 40 c/s to 100 Mc/s. The loss observed in this frequency range is ascribed to a Wagner-type mechanism. No discontinuity in the dielectric properties of the medium was observed.read more
Citations
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Nanostructured Metal Oxide Thin Films for Humidity Sensors
TL;DR: Capacitive humidity sensors were fabricated using countersunk interdigitated electrodes coated with amorphous nanostructured TiO2, SiO2 and Al2O3 thin films grown by glancing angle deposition.
Journal ArticleDOI
Dielectric properties of evaporated films
TL;DR: In this paper, the authors reviewed the evidence for vacancy-pair formation in alkali halide crystals and discussed the dielectric properties and structure of thin films with a view to using the high defect concentrations in vacuum-deposited films to confirm vacancypair orientation effects.
Journal ArticleDOI
The effect of moisture on the dielectric constant of hardened portland cement paste
TL;DR: In this article, the dielectric constant of hardened portland cement paste as a function of water content between 0.1 and 10 MHz and at microwave frequencies at 3000, 3750, 7450 and 9375 MHz were reported.
Journal ArticleDOI
Further Electrical Effects of the Adsorption of Water Vapour by Anodized Aluminium
C J L Booker,J L Wood +1 more
TL;DR: In this article, the influence of the humidity and frequency of measurements on the dielectric properties of anodic anodized aluminium oxide layers has been investigated and the results indicate that the ageing is primarily due to a decrease in conductivity, and not to structural changes of the oxide layer.
References
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Journal ArticleDOI
The Distribution of Relaxation Times in Typical Dielectrics
TL;DR: In this article, the effect of the density of distribution upon the frequency variation of the dielectric constant and the loss factor is discussed, and a graphical method of evaluating the constants of Wagner's equation from experimental data is described.
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