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Related papers: Flat Dielectric Response in 3BaO-3TiO2-B2O3 Glasse…

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The glasses in the system (100-x)TeO2-xCaCu3Ti4O12, (x=0.25 to 3 mol %) were fabricated. The color varied from olive green to brown as the CaCu3Ti4O12 (CCTO) content increased in TeO2 matrix. The X-ray powder diffraction and differential…

Materials Science · Physics 2013-01-22 P. Thomas , K. B. R. Varma

The frequency and temperature dependence of the dielectric constant and the electrical conductivity of the transparent glasses in the composition 0.5Cs2O-0.5Li2O-3B2O3 (CLBO) were investigated in the 100 Hz - 10 MHz frequency range. The…

Materials Science · Physics 2010-08-02 Rahul Vaish , K. B. R. Varma

The frequency and temperature dependence of the dielectric constant and the electrical conductivity of the transparent glasses in the composition Li2O-3B2O3 (LBO) were investigated in the 100 Hz- 10 MHz frequency range. The dielectric…

Materials Science · Physics 2015-05-19 Rahul Vaish , K. B. R. Varma

The frequency and temperature dependence of the dielectric constant, electric modulus and electrical conductivity of the transparent glasses in the composition 0.5Li2O-0.5Na2O-2B2O3 (LNBO) were investigated in the 100 Hz - 10 MHz frequency…

Materials Science · Physics 2010-07-13 Rahul Vaish , K. B. R. Varma

Dielectric response has been studied for a new manganocuprate, Gd3Ba2Mn2Cu2O12 (Gd3222) as a function of temperature (100 - 300 K) and frequency (75 kHz to 1 MHz). The dielectric constant (e) exhibits a two step increase (two peaks) in e(T)…

Complex electrical permittivity measurements in (1-x)[Pb(Mg1/3 Nb2/3)O3]-xPbTiO3 ceramics for 0.10 x 0.40 were performed in the frequency and temperature range from 1 kHz to 100 kHz and from 15 to 600 K, respectively. Unexpected dielectric…

Materials Science · Physics 2009-11-10 M. H. Lente , A. L. Zanin , E. R. M. Andreeta , I. A. Santos , D. Garcia , J. A. Eiras

Electrical conduction and relaxation phenomena in bismuth borate glasses in the composition 2Bi2O3-B2O3 (Bi4B2O9) were investigated. Dielectric studies carried out on these glasses revealed near constant loss (NCL) response in the 1 kHz to…

Materials Science · Physics 2011-08-01 G Paramesh , K B R Varma

The temperature dependence of elastic, dielectric, and piezoelectric properties of (65-x)Pb(Mg1/3Nb2/3)O3-xBaTiO335-PbTiO3 ceramics with x=0, 1, 2, 3, and 4 was investigated. Compound with x=2 was found to exhibit a large piezoelectric…

Materials Science · Physics 2013-01-17 Lizhu Huang , Guorong Li , Desheng Fu , Suzie Sheng , Jiangtao Zeng , Huarong Zeng

Transparent glasses in the system 3BaO-3TiO2-B2O3 (BTBO) were fabricated via the conventional melt-quenching technique. The as-quenched samples were confirmed to be glassy by differential thermal analysis (DTA) technique. The thermal…

Materials Science · Physics 2010-07-15 Rahul Vaish , K. B. R. Varma

Frequency dependence of the dielectric constant of complex perovskite oxide Ba(1-x)La(x)Ti(1-x)Cr(x)O3 (BLTC) ceramics with the composition ratio 0.4<= x <= 0.7 is precisely measured in the temperature range from 20 K to 300 K, and the…

Materials Science · Physics 2007-05-23 Mamoru Fukunaga , Yoshiaki Uesu

Transparent glasses in the system 0.5Li2O-0.5M2O-2B2O3 (M=Li, Na and K) were fabricated via the conventional melt quenching technique. Amorphous and glassy nature of the samples were confirmed via the X-ray powder diffraction and the…

Materials Science · Physics 2015-05-19 G. Paramesh , Rahul Vaish , K. B. R. Varma

Magnetic dc susceptibility between 1.5 and 800 K, ac susceptibility and magnetization, thermodynamic properties, temperature dependence of radio and audio-wave dielectric constants and conductivity, contact-free dielectric constants at…

Materials Science · Physics 2010-07-22 Jun Lu , A. Günther , F. Schrettle , F. Mayr , S. Krohns , P. Lunkenheimer , A. Pimenov , V. D. Travkin , A. A. Mukhin , A. Loidl

A series of (1-x)[(2BaO-0,5Na2O)-1P2O5] -xNb2O5 (BNPN, x=0,41, 0,43, 0,45, 0,48) glass-ceramics based on phosphate glasses have been prepared via a controlled-crystallization route. The structure, dielectric properties, interfacial…

Broadband dielectric spectroscopy from Hz up to the infrared (IR) range and temperature interval 10-300 K was carried out for xBaZrO3-(1-x)BaTiO3 (BZT-x, x = 0.6, 0.7, 0.8) solid solution ceramics and compared with similar studies for x =…

Materials Science · Physics 2013-12-12 J. Petzelt , D. Nuzhnyy , M. Savinov , V. Bovtun , M. Kempa , T. Ostapchuk , J. Hlinka , G. Canu , V. Buscaglia

The structural, dielectric and ferroelectric properties of lead-free (Na0.5-xKxBi0.5-xLax)TiO3 powders synthesized by sol-gel self-combustion method were investigated. Rietveld refinement of Synchrotron x-ray diffraction data confirms pure…

The possibility of obtaining relatively high dielectric constant polymer-ceramic composite by incorporating the giant dielectric constant material, CaCu3Ti4O12 (CCTO) in a Poly(vinylidene fluoride) (PVDF) polymer matrix by melt mixing and…

Materials Science · Physics 2013-01-18 P. Thomasa , K. T. Varughese , K. Dwarakanath , K. B. R. Varma

We have measured dielectric properties of Ca$_{1+x}$Cu$_{3-x}$Ti$_4$O$_{12}$ ($x$ = 0, 0.1, 0.5, 1, 1.5, 2, 2.9 and 3), and have found that Ca$_2$Cu$_2$Ti$_4$O$_{12}$ (a composite of CaCu$_3$Ti$_4$O$_{12}$ and CaTiO$_3$) exhibits a high…

Materials Science · Physics 2009-11-11 W. Kobayashi , I. Terasaki

The magnetic susceptibility between 1.5 and 800 K, the infrared reflectivity at room temperature and the temperature dependence of the dielectric constant at mm-wavelengths are reported for single crystalline BiFeO3. A well developed…

Strongly Correlated Electrons · Physics 2010-07-22 Jun Lu , M Schmidt , P Lunkenheimer , A Pimenov , A A Mukhin , V D Travkin , A Loidl

Low temperature properties of BaZrO3 are revealed by combining experimental techniques (X-ray diffraction, neutron scattering and dielectric measurements) with theoretical first-principles-based methods (total energy and linear response…

Materials Science · Physics 2009-11-11 A. R. Akbarzadeh , I. Kornev , C. Malibert , L. Bellaiche , J. M. Kiat

We investigate the relaxation and conduction mechanism of Ba0.90Sr0.10TiO3 (BST) ceramic, synthesized by the solid state reaction method. The dielectric and relaxation properties are analyzed in the temperature range of 380-450{\deg}C with…

Materials Science · Physics 2019-03-27 H. Zaitouni , L. Hajji , E. Choukri , D. Mezzane , Z. Abkhar , L. Essaleh , A. Alimoussa , M. El Marssi , I. A. Luk'yanchuk
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