Results 211 to 220 of about 28,678 (259)

Conductivity and the electric modulus in polymers

Journal of Polymer Science, Part B: Polymer Physics, 1992
AbstractAt relatively high temperatures and low frequencies the electrical properties of many polymers are dominated by ionic conductivity. In cases where the glass transition is obscured by conductivity, it can be revealed by treating the data in terms of the electric modulus.
Howard W Starkweather, Peter Avakian
exaly   +2 more sources

An investigation on the conductivity, electric modulus and scaling behavior of electric modulus of barium titanate-lithium ferrite composite doped with Nb, Gd and Sm

Materials Chemistry and Physics, 2020
Abstract The (90)BaTi(1-2x) RxNbxO3+(10)Li0.5Fe2.5O4 (R = Gd, Sm and x = 0, 0.05, 0.1) composites are prepared using solid state method. The structural properties like X-ray diffraction (XRD), FESEM electrical properties like electric modulus (M′), complex electric modulus (M″) and conductivity properties of doped and undoped composites have been ...
Ganapathi Rao Gajula, Lakshmi Rekha Buddiga   +1 more
exaly   +2 more sources

Disadvantages of electric modulus formalism in description of electrical relaxation in solids

Ferroelectrics, 1996
Abstract Some wide-spread misconceptions associated with the usage of electric modulus formalism are analyzed. The most striking disagreement with reality is the wide-spread opinion about an ideal, Debye-like behavior of electrical relaxation in low-alkali quartz glass.
Ernest F. Hairetdinov, Nikolai F. Uvarov, Hitendra K. Patel   +2 more
exaly   +2 more sources

Comments on the electric modulus function

Journal of Non-Crystalline Solids, 2005
Arguments in favor of the electric modulus formalism are reviewed, and several misunderstandings and misrepresentations are corrected. It is argued that different representations of the same experimental data provide additional, rather then subtractive, insights into the difficult problem of understanding ionic conductivity in melts, glasses and ...
I.M. Hodge, K.L. Ngai, C.T. Moynihan
openaire   +1 more source

Reconstruction of Permittivity from the Modulus of a Scattered Electric Field

Journal of Applied and Industrial Mathematics, 2018
Summary: We present a numerical algorithm for determining the inhomogeneities of permittivity from the strength modulus of a scattered electric field. The algorithm was tested on simulated noisy data and revealed its practical operability.
Karchevskiĭ, A. L., Dedok, V. A.
openaire   +1 more source

AN INVESTIGATION OF β-ALUMINA ELECTROLYTES BY ELECTRIC MODULUS SPECTROSCOPY

Electrochimica Acta, 1977
Abstract Various types of β-alumina (including single-crystal cylindrical boules, Monofrax flakes polycrystalline sinters) have been investigated by electric modulus spectroscopy. The complex electric modulus is identical with the inverse complex permittivity, ie M *  ( e * ) −1 , and also related to the complex impedance by the equation M * 
R.J. Grant, M.D. Ingram, A.R. West
openaire   +1 more source

Dielectric response and electric modulus of Y2CrCoO6 perovskite

AIP Conference Proceedings, 2016
Y2CrCoO6 perovskite prepared by solution combustion method and sintered at 1073 K has been characterized by dielectric spectroscopy and electric modulus formalism. Temperature and frequency dependent measurements of permitivitty reveal that observed relaxation might be related to the hopping conductivity, i.e. universal dielectric response.
M. Pecovska-Gjorgjevich, S. Dimitrovska-Lazova, S. Aleksovska, R. Popeski-Dimovski   +3 more
openaire   +1 more source

Electric modulus powerful tool for analyzing dielectric behavior

IEEE Transactions on Dielectrics and Electrical Insulation, 2014
Complex electric modulus, defined as the inverse of complex relative permittivity, can be a significantly powerful tool for analyzing dielectric behavior of a polymeric insulating material, especially at relatively high temperatures, where complex permittivity usually becomes very high due to electrode polarization and carrier transport. In this paper,
Fuqiang Tian, Yoshimichi Ohki
exaly   +2 more sources

Complex Dielectric, Impedance, and Electric Modulus of CuMn2O4

Journal of Electronic Materials, 2019
Tetragonal distorted CuMn2O4 spinel has been prepared by a single-step method and its complex dielectric, impedance, and electric modulus measured with respect to frequency at different selected temperatures. In all the measurements, a frequency-dependent inflection point was observed above 170 K, revealing the cross-over in the grain and grain ...
S. Mohanta, I. Naik, S. D. Kaushik, S. Mukherjee, P. Patra   +4 more
openaire   +1 more source

Ultralow modulus electrically conducting electrode materials

SPIE Proceedings, 2006
This paper describes the use of free-standing electrically conductive ultra-low modulus materials that withstand elongations up to 1000% as sensors for the measurement of large strains. NanoSonic has developed novel, high performance, multifunctional polymers for use in self-assembly processing that result in durable free-standing conductive films ...
R. O. Claus, R. M. Goff, M. Homer, A. B. Hill, J. H. Lalli   +4 more
openaire   +1 more source