The development of dielectric breakdown and the DC voltage magnetic fluids based on inhibited transformer oil ITO 100 were investigated in parallel orientations external field. It was shown that is strongly influenced by nanoparticles. with volume concentration 1and 0.2% had better properties than pure oil. increase interpreted base bubble theory breakdown.

Abstract The pyroelectric properties of single crystals rubidium, cesium and thallium nitrates have been investigated by direct observation the dipole moment in an electric field measurements coefficient (d P /d T ) using Chynoweth technique. These observations shown that trigonal forms these are primary (or secondary) pyroelectrics which c ‐axis is polar axis. technique also indicated presence 180° domains were subsequently revealed decoration with charged particles from a xerographic...

The effect of magnetic nanoparticles size and concentration on nematic liquid crystal (NLC) behavior in a field was investigated. magneto-optical investigation using measurements the light transmission through used to study structural changes induced by an applied weak field. Magnetic Fe

The changes in dielectric parameters and structural arrangement of transformer oil based ferrofluid with magnetic nanoparticles upon the effect an external field electric were studied by spectroscopy.The frequency dependence dissipation factor was measured within range from 1 mHz to 10 kHz a capacitance method.In presence interaction between moments led aggregation nanoparticles.The had also effects on change dipole moment particles transfer counterions.The observed low relaxation maximum...

By integrating nanoparticles with magnetic properties into liquid crystals their can be tuned to increase or decrease behavior under external fields. Synthetized shapes and various concentrations defines interactions crystal host. An investigation of colloidal stability structural changes in host is presented, considering the effects fields on (LCs) dopands. A distinctive difference light transmission responses was observed studied nematic LC (NLC) samples as compared undoped crystals....

The changes in structural arrangement transformer oil based magnetic uids upon the eect of an external eld and temperature were studied by acoustic spectroscopy.The attenuation waves was measured as a function range 0300 mT, parallel to direction 1535 • C for various nanoparticles concentrations.The strong inuence steeped on wave detected its hysteresis observed, too.When is swept at constant rate, dominant interactions between moment occur, leading aggregation clusters formation.However,...

The effect of rod-like magnetic particles on liquid crystal (6CHBT) structural changes in electric and weak fields were studied by means the attenuation surface acoustic wave frequency 30 MHz propagating along ferronematic crystals.Three low volume concentrations (Φ = 1 × 10 -5 , -4 and1 -3 ) added to during its isotropic phase.Several measurements including investigation effects electrical applied both separately conjunction as well influence temperature performed.The distinctive responses...

The effect of multi-walled carbon nanotubes (MWCNT) and functionalized MWCNT (MWCNT/Fe3O4) on structural changes in thermotropic liquid crystal (6CHBT) was studied using the attenuation measurement surface acoustic wave (SAW) propagating along crystal. Both kinds nanoparticles low volume concentration (1 × 10–4) were added to during its isotropic phase. Pure 6CHBT used for comparison orientational coupling crystals molecules with both types nanotubes. These observations proved, that doping...

The surface acoustic waves (SAWs) were used to study the effect of magnetic nanoparticles on nematic liquid crystal (NLC) behavior in weak and electric fields. measurement attenuation SAW propagating along interface between piezoelectric substrate is showed as an effective tool processes structural changes. Fe3O4 nanorod shape different low volume concentration added NLC (4-(trans-4′-n-hexylcyclohexyl)-isothiocyanatobenzene (6CHBT)) during its isotropic phase. In contrast undoped crystals...

The structural changes in transformer oil–based magnetic fluids with magnetite nanoparticles, FeO·Fe 2 O 3 , of different diameters upon the effect an external field were studied by acoustic spectroscopy. corresponding wave attenuation as a function measured. Over linear increasing field, interaction between and moments nanoparticles led to aggregation following chain or cluster formation. These structures enlarged this process had influence on value attenuation. remarkable also observed...

The effect of magnetic nanoparticles low concentrations and different shapes, including spherical, rodlike, chain-like shape on the magneto-optical response nematic liquid crystal 6CHBT is investigated.The was examined using a linearly polarized laser beam (532 nm) passed through cell under both increasing pulsed fields.The analysis observed characteristics time responses confirmed role concentration particles resultant behavior concerning its stability switching time.

Abstract The properties of magnetic fluids depend on the nanoparticle diameter, their concentration and carrier liquid. structural changes in with different diameter based transformer oils TECHNOL MOGUL under effect a field temperature were studied by acoustic spectroscopy. At linear jump at various temperatures continuous change was observed attenuation caused aggregation nanoparticles to structures. From anisotropy using Taketomi theory basic parameters structures are calculated impact...

The effect of the liquid crystalline host on structural changes in magnetosomes based ferronematics is studied using surface acoustic wave (SAW) technique supported by some capacitance and light transmission measurements. measurement attenuation response SAW propagating along interface between LC piezoelectric substrate used to study processes under magnetic field. magnetosome nanoparticles same volume concentration were added three different nematic LCs, 5CB, 6CB, E7. Unlike undoped...

A composite ferronematic system based on the nematic liquid crystal E7, doped with lath-like goethite magnetic nanoparticles of volume concentrations 10−3, 5 × 10−4, and 10−5, was investigated. Both surface acoustic waves (SAWs) magneto-optical effect were used to study influence crystals’ structural changes, focused above all transitions. The responses SAW attenuation light transmission external fields investigated experimentally under linearly increasing/decreasing or jumped (time...

An acoustic attenuation spectroscopy as a powerful technique is used to study the relaxation processes in phosphate glasses containing Cu+ conductive ions of system CuI-CuBr-Cu2O-P2O5 with respect ion transport mechanisms. The spectra exhibit several distinctive peaks, corresponding mechanisms originating from different kinds sites responsible for ionic hopping. experimental results are then analysed connection frequency response, activation energy at peaks and peak intensities using...

APR experiments on weak n-type samples of chromium-doped GaAs produce a set absorptions consisting sharp peaks broad background when the sample is kept in dark. A model proposed earlier for substitutional Cr 2+ ions at Ga sites which dynamic Jahn-Teller effect and random strains play crucial role, has been examined to see whether it can account EPR this absorption. Revised electronic parameters are deduced satisfy requirements data from conventional thermally detected structure zero-phonon...