Search Results - "Malaescu Iosif"

Experimental and theoretical investigations on thermal conductivity of a ferrofluid under the influence of magnetic field by Marin, Catalin N., Malaescu, Iosif

“… The effect of the strength and orientation of magnetic field with respect to the temperature gradient on the effective thermal conductivity λ e f f ( H ) ,…”
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Electric and Dielectric Properties in Low-Frequency Fields of Composites Consisting of Silicone Rubber and Al Particles for Flexible Electronic Devices by Teusdea, Alexandrina, Malaescu, Iosif, Sfirloaga, Paula, Marin, Catalin Nicolae

“…Understanding the electrical conduction and dielectric polarization properties of elastomer-based composites is important for the design of flexible and…”
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Increasing Electrical Resistivity of P-Type BiFeO3 Ceramics by Hydrogen Peroxide-Assisted Hydrothermal Synthesis by Casut, Cristian, Bucur, Raul, Ursu, Daniel, Malaescu, Iosif, Miclau, Marinela

“…Bismuth ferrite (BiFeO3, BFO) is still widely investigated both because of the great diversity of its possible applications and from the perspective of…”
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The Effect of Bi2O3 and Fe2O3 Impurity Phases in BiFeO3 Perovskite Materials on Some Electrical Properties in the Low-Frequency Field by Casut, Cristian, Malaescu, Iosif, Marin, Catalin Nicolae, Miclau, Marinela

“…Pure bismuth ferrite (BFO) and BFO with impurity phases (Bi2O3 or Fe2O3) were synthesized by the hydrothermal method. Complex dielectric permittivity (ε) and…”
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Experimental Investigations of the AC-Conductivity in NaTaO3 Ceramic Materials Doped with Cu and Al Metal Ions by Malaescu, Iosif, Sfirloaga, Paula, Marin, Catalin Nicolae

“…Two ceramic samples of sodium tantalate (NaTaO3), doped with metal ions of copper (Cu; sample S1) or aluminum (Al; sample S2), were obtained by the sol-gel…”
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Electric and magnetic properties of a composite consisting of silicone rubber and ferrofluid by Marin, Catalin N., Malaescu, Iosif, Sfirloaga, Paula, Teusdea, Alexandrina

“…[Display omitted] Electric and magnetic properties in the frequency range (500 Hz − 2 MHz) of a composite consisting of silicone rubber and ferrofluid with…”
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The Effect of Magnetically Induced Local Structure and Volume Fraction on the Electromagnetic Properties of Elastomer Samples with Ferrofluid Droplet Inserts by Marin, Catalin N., Malaescu, Iosif

“…The magnetic permeability (μ), dielectric permittivity (ε) and electrical conductivity (σ) of six elastomer samples obtained by mixing silicone rubber…”
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Silver doping in lanthanum manganite materials: structural and electrical properties by Sfirloaga, Paula, Vlase, Gabriela, Vlase, Titus, Malaescu, Iosif, Marin, Catalin Nicolae, Vlazan, Paulina

“…Ag-doped LaMnO 3 nanoparticles have been synthesized through sol–gel process using citric acid as a chelating agent. Silver effect on physicochemical…”
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Manganese ferrite-polyaniline hybrid materials: Electrical and magnetic properties by Stoia, Marcela, Păcurariu, Cornelia, Mihali, Ciprian, Mălăescu, Iosif, Marin, Cătălin Nicolae, Căpraru, Aylin

“…Magnetic MnFe2O4 nanopowders were synthesized by an original solvothermal method in the absence and in the presence of tetra-n-butylammonium bromide (TBAB) and…”
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Experimental Investigations on the Electrical Conductivity and Complex Dielectric Permittivity of ZnxMn1−xFe2O4 (x = 0 and 0.4) Ferrites in a Low-Frequency Field by Malaescu, Iosif, Sfirloaga, Paula, Marin, Catalin N., Bunoiu, Madalin O., Vlazan, Paulina

“…Two samples of ZnxMn1−xFe2O4 (x = 0, sample A; and x = 0.4, sample B) were synthesized by the hydrothermal method. From complex impedance measurements in the…”
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Experimental Investigations on the Ferromagnetic Resonance and Absorbing Properties of a Ferrofluid in the Microwave Range by Malaescu, Iosif, Marin, Catalin N., Fannin, Paul C.

“…Measurements of complex magnetic permeability, μ(f,H) = μ′(f,H) − iμ″(f,H) and dielectric permittivity ε(f,H) = ε′(f,H) − iε″(f,H), in the frequency range, f…”
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Revealing the Impact of Ga and Y Doping on Thermal and Electrical Behavior of LaMnO3 Ceramic Materials by Vlazan, Paulina, Marin, Catalin Nicolae, Malaescu, Iosif, Vlase, Gabriela, Vlase, Titus, Poienar, Maria, Sfirloaga, Paula

“…The synthesis, thermal behavior and electrical properties of a series of undoped and 1% Ga- or Y-doped lanthanum manganite compounds, obtained via the sol–gel…”
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Doped Bi2Te3 nano-structured semiconductors obtained by ultrasonically assisted hydrothermal method by Novaconi Stefan, Vlazan Paulina, Malaescu Iosif, Badea Iulia, Grozescu Ioan, Sfirloaga Paula

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Investigations on the electrical conductivity and complex dielectric permittivity of a ferrofluid subjected to the action of a polarizing magnetic field by Malaescu, Iosif, Bunoiu, Madalin O., Teusdea, Alexandrina, Marin, Catalin N.

“…•Complex impedance measurements on a kerosene-based ferrofluid with magnetite particles were performed;.•The measurements were done in the presence of a…”
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Investigation of some thermal parameters of ferrofluids in the presence of a static magnetic field by Bunoiu, Octavian Madalin, Matu, Georgeta, Marin, Catalin Nicolae, Malaescu, Iosif

“…•Thermal conductivity, diffusivity and specific heat of a ferrofluid were measured.•All these thermal parameters can be externally controlled with a magnetic…”
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Increasing Electrical Resistivity of P-Type BiFeO 3 Ceramics by Hydrogen Peroxide-Assisted Hydrothermal Synthesis by Casut, Cristian, Bucur, Raul, Ursu, Daniel, Malaescu, Iosif, Miclau, Marinela

“…Bismuth ferrite (BiFeO , BFO) is still widely investigated both because of the great diversity of its possible applications and from the perspective of…”
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Increasing Electrical Resistivity of P-Type BiFeO[sub.3] Ceramics by Hydrogen Peroxide-Assisted Hydrothermal Synthesis by Casut, Cristian, Bucur, Raul, Ursu, Daniel, Malaescu, Iosif, Miclau, Marinela

“…Bismuth ferrite (BiFeO[sub.3] , BFO) is still widely investigated both because of the great diversity of its possible applications and from the perspective of…”
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Exploiting the Bi-doping effect on the properties of NaNbO3 perovskite -type materials by Vlazan, Paulina, Poienar, Maria, Malaescu, Iosif, Marin, Catalin N., Casut, Cristian, Sfirloaga, Paula

“…In this work, Bi3+ doped NaNbO3 materials have been prepared successfully by the hydrothermal method at low temperature and pressure. The influence of Bi3+…”
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Polarizing Magnetic Field Effect on Some Electrical Properties of a Ferrofluid in Microwave Field by Marin, Catalin N., Fannin, Paul C., Malaescu, Iosif

“…The complex dielectric permittivity, ε (f, H) = ε′ (f, H) − i ε″ (f, H), in the microwave frequency range f, of (0.1–3) GHz and polarizing field values H, in…”
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Experimental Investigations on the Electrical Conductivity and Complex Dielectric Permittivity of Zn[sub.x]Mn[sub.1−x]Fe[sub.2]O[sub.4] Ferrites in a Low-Frequency Field by Malaescu, Iosif, Sfirloaga, Paula, Marin, Catalin N, Bunoiu, Madalin O, Vlazan, Paulina

“…Two samples of Zn[sub.x]Mn[sub.1−x]Fe[sub.2]O[sub.4] (x = 0, sample A; and x = 0.4, sample B) were synthesized by the hydrothermal method. From complex…”
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