Results 231 to 240 of about 28,678 (259)

Effect of electric field on storage modulus of dielectric composites

Journal of Applied Polymer Science, 2020
AbstractDCs composed by dielectric particles and elastomer matrix present electric field dependent deformation. Viscoelasticity dominates their electric field response, which has to be considered in their applications. Although the influence of strain amplitude and oscillation frequency on the viscoelasticity of DCs has been investigated, the effect of
Ning Ma, Guangping Gong, Nannan Li, Bo Li, Xufeng Dong   +4 more
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Dielectric relaxation, electrical conductivity measurements, electric modulus and impedance analysis of WO3 nanostructures

Journal of Alloys and Compounds, 2021
Abstract The electrical conductivity and dielectric properties of WO3 nanostructures were measured by impedance spectroscopy using 50 Hz–5 MHz frequency in steps of 100 Hz and 303–383 K temperature. The dielectric behavior is analyzed using real and imaginary parts of dielectric constant (e′), dielectric loss (e″), loss factor (tan δ), electric ...
B. Gowtham, V. Balasubramani, S. Ramanathan, Mohd Ubaidullah, Shoyebmohamad F. Shaikh, Gedi Sreedevi   +5 more
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Electric field dependence of young's modulus of (TMTSF)2PF6

Synthetic Metals, 1993
Abstract We report on measurements of the Young's modulus (Y) and internal friction (1/Q) in (TMTSF) 2 PF 6 at 5.5K as functions of electric field. No changes ( Δ Y/Y, Δ 1/Q −4 ) are observed at fields up to 100E T , the threshold for SDW depinning, in contrast to what is observed for many sliding charge-density-wave materials.
Z.G. Xu, G. Minton, J.W. Brill, T. Burgin, L.K. Montgomery   +4 more
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Space charge relaxation in polyetherimides by the electric modulus formalism

Journal of Applied Physics, 2000
Dynamic electrical analysis shows that at high temperatures (above the glass transition temperature), the electrical properties of polyetherimide are strongly influenced by space charge. In this article we have studied the relaxation of space charge in two commercial varieties of polyetherimide: Ultem 1000 and Ultem 5000.
M. Mudarra, J. Belana, J. C. Cañadas, J. A. Diego, J. Sellarès, R. Dı́az-Calleja, M. J. Sanchı́s   +6 more
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Impedance and Electric Modulus Analysis of Cd0.6Zn0.4Te Thin Films

Crystal Research and Technology, 2002
Cd 0.6 Zn 0.4 Te thin films were deposited by single source vacuum evaporation technique. The impedance of polycrystalline Cd 0.6 Zn 0.4 Te thin films has been measured as a function of frequency. The experimental data were measured in the temperature range of 300 - 445K and have been analyzed in the complex plane formalism and suitable equivalent ...
K. Prabakar, Sa. K. Narayandass, D. Mangalaraj   +2 more
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Electrical conductivity and electrical modulus properties of α, ω-dihexylsexithiophene organic semiconductor

Physica B: Condensed Matter, 2007
Abstract Electrical conductivity and dielectrical properties of α, ω-dihexylsexithiophene organic compound have been investigated by impedance spectroscopy. Direct current conductivity results confirm that α, ω-dihexylsexithiophene is an organic semiconductor with the calculated electronic parameters.
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Electrical conductivity and complex electric modulus of titanium doped nickel–zinc ferrites

Physica B: Condensed Matter, 2012
Abstract The samples Ni1+x−yZnyTix Fe2−2xO4; y=0.1, 0.0≤x≤0.5 were prepared in a single-phase spinel structure as indicated from X-ray analysis. Electrical conductivity and dielectric measurements at different temperatures from 300 K to 600 K in the frequency range from 42 Hz to 5 MHz have been analyzed.
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The Young's modulus and electrical and magnetic properties of La0.5Ca0.5−xTexMnO3

Physics Letters A, 2005
Abstract The Young's modulus and the transport and magnetic properties of polycrystalline La0.5Ca0.5−xTexMnO3 ( x = 0 , 0.05, and 0.1) have been studied systematically. It was found that with increasing Te content, the resistivity decreases, the Curie temperature T C increases and the relative Young's modulus decreases. We suggest that
Gan-Hong Zheng, Yong-Qin Ma, Ran Ang, Wen-Hai Song, Yu-Ping Sun   +4 more
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ELECTRIC MODULUS AND DIELECTRIC STUDIES OF ALIZARIN DOPED ANTHRAQUINONE

International Journal of Modern Physics B, 2008
The electrical properties of alizarin doped anthraquinone were investigated using a complex impedance spectroscopy technique. Dielectric study revealed a phase transition from the semiconducting to the conducting state at 53°C. The dielectric relaxation was found to be of non-Debye type.
K. P. CHANDRA, R. N. GUPTA, K. PRASAD
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Shear modulus of polyelectrolyte gels under electric field

Journal of Physics: Condensed Matter, 2001
The shear modulus of two polyelectrolyte gels poly(acrylic acid), a weak acid with small side groups, and poly(2-acrylamide-2- methylpropane sulfonic acid), a strong acid with large side groups, have been measured with and without application of an electric field across a gel sample swollen with water to equilibrium.
C J Whiting, A M Voice, P D Olmsted, T C B McLeish   +3 more
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