Results 81 to 90 of about 155,614 (198)

Molecular dynamics study of thermomechanical strength enhancement in silica aerogel reinforced with paraffin under external electric fields

open access: yesResults in Engineering
Aerogels are extremely porous, low-density solids with distinct thermal and mechanical characteristics. The addition of phase change materials (PCMs), such as paraffin, to silica aerogels, may greatly improve their functioning, especially for thermal ...
Ali B.M. Ali   +6 more
doaj   +1 more source

Electric-field-induced stress relaxation in alpha-phase poly(vinylidene fluoride) films

open access: yes, 2013
The relationship between elastic fatigue and electrical cyclic loading in alpha-phase poly(vinylidene fluoride) films has been investigated. Our experimental studies have shown that the electric-field-induced fatigue behavior can be described by a stress
Baier, Robert E.   +3 more
core   +1 more source

Improvement of properties of silver filled epoxy composites via processing method

open access: yesMoldavian Journal of the Physical Sciences, 2012
Conductive composites consisting of an epoxy matrix and silver flakes were fabricated, and mechanical, thermal and electric properties were investigated as a function of particle concentration and processing techniques. Scanning electron microscope (SEM)
Mariatti, M., Azizan, A.
doaj  

Ion in Chitosan Based Solid Electrolyte

open access: yesInternational Journal of Electrochemical Science, 2019
Ion transport has been the subject of debate among scientists for more than three decades. This paper discusses the preparation, degradation and viscoelastic relaxation dynamics of ions in chitosan-based solid electrolyte.
Shujahadeen B. Aziz   +6 more
doaj   +1 more source

General Electric composite ring-disk flywheel: Recent and potential developments [PDF]

open access: yes, 1984
Recent developments of the General Electric hybrid rotor design are described. The relation of the hybrid rotor design to flywheel designs that are especially suitable for spacecraft applications is discussed.
Coppa, A. P.
core   +1 more source

Electromechanical responses of poly(3-thiopheneacetic acid)/acrylonitrile-butadiene rubbers

open access: yeseXPRESS Polymer Letters, 2008
Acrylonitrile-butadiene rubber (NBR) and blends of poly(3-thiopheneacetic acid)/ acrylonitrile-butadiene rubber, P3TAA/NBR, were fabricated, and the electrorheological properties, dielectric, and electrical conductivities were investigated .
doaj   +1 more source

AC conductivity and dielectric relaxation in V2O5–P2O5–B2O3 glasses

open access: yesJournal of Asian Ceramic Societies, 2015
We investigated the AC conductivity in 60V2O5–(40 − x)P2O5–xB2O3 (x = 5, 10, 20, 30 and 35 mol%) glasses as a function of temperature. The measurements were carried out in the frequency range from 20 Hz to 1 MHz with varying temperatures (303–473 K). The
R.V. Barde, K.R. Nemade, S.A. Waghuley
doaj   +1 more source

Influence of silver ion reduction on electrical modulus parameters of solid polymer electrolyte based on chitosan-silver triflate electrolyte membrane

open access: yeseXPRESS Polymer Letters, 2010
The electric modulus properties of solid polymer electrolyte based on chitosan: AgCF3SO3 from 303 to 393 K have been investigated by using impedance spectroscopy. The shift of the M'' peak spectra with frequeny depends on the dissociation and association
doaj   +1 more source

Investigation of the structural, magnetic, and dielectric properties of Al-substituted Li-Ni-Mn ferrites

open access: yesResults in Physics
The standard solid-state reaction method is used to synthesize Aluminium (Al) substituted lithium-nickel-manganese ferrites. The synthesized samples were sintered at a temperature of 1200⁰C for 5h.
Mithun Kumar Das   +7 more
doaj   +1 more source

Nanomechanics of Electrorheological Suspensions with Polymer Dispersed Phase. Quantum-Mechanical Simulation [PDF]

open access: yesУчёные записки Казанского университета: Серия Физико-математические науки, 2015
The microscopic structure and mechanical properties of electrorheological fluids in an electric field were investigated by means of quantum-mechanical computer simulation. Modified polyimides were considered as the solid-phase particles.
S.M. Nikitin   +2 more
doaj  

Home - About - Disclaimer - Privacy