Search Results - "Verma, H.C."

Dielectric frequency response at different voltage levels of mineral oil-based silica nanofluids by H.C. Verma, A. Baral

“…In this paper, the Frequency domain dielectric response of oil-paper insulation, employing SiO2-based nanofluids is reported. It is a well-known fact that the…”
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Fluoride adsorption studies on mixed-phase nano iron oxides prepared by surfactant mediation-precipitation technique by Mohapatra, M., Rout, K., Singh, P., Anand, S., Layek, S., Verma, H.C., Mishra, B.K.

“…Mixed nano iron oxides powder containing goethite (α-FeOOH), hematite (α-Fe2O3) and ferrihydrite (Fe5HO8·4H2O) was synthesized through surfactant…”
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Magnetization anomalies of nanosize zinc ferrite particles prepared using electrodeposition by Roy, M.K., Verma, H.C.

“…Nanosize zinc ferrite particles have been prepared for the first time using electrodeposition. Zinc and iron are deposited on the cathode from a common bath…”
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Magnetic properties of a partially inverted zinc ferrite synthesized by a new coprecipitation technique using urea by Kundu, Animesh, Upadhyay, C., Verma, H.C.

“…Nanosized zinc ferrite powder has been prepared by a new coprecipitation technique using urea. A single phase crystalline 13 nm zinc ferrite powder is obtained…”
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Synthesis, characterization and dielectric properties of europium-doped barium titanate nanopowders by Rath, M.K., Pradhan, G.K., Pandey, B., Verma, H.C., Roul, B.K., Anand, S.

“…Europium-doped cubic barium titanate (BT) nanocrystals with % [Eu/Ti] mol ratio varying from 0.05 to 0.25 were prepared through hydrothermal route. The nano…”
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A citrate process to synthesize nanocrystalline zinc ferrite from 7 to 23 nm crystallite size by Kundu, A., Anand, S., Verma, H.C.

“…Nanosized zinc ferrite of controlled crystallite size has been prepared by calcining an amorphous zinc–iron–citrate precursor at different temperatures up to…”
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Room temperature ferromagnetism in Mn-doped NiO nanoparticles by Layek, Samar, Verma, H.C.

“…Mn-doped NiO nanoparticles of the series Ni1−xMnxO (x=0.00, 0.02, 0.04 and 0.06) are successfully synthesized using a low temperature hydrothermal method…”
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Enhancement in magnetic properties of Ba-doped BiFeO3 ceramics by mechanical activation by Layek, Samar, Verma, H.C., Garg, Ashish

“…Here, we report on the enhancement in the magnetic properties of polycrystalline Bi1−xBaxFeO3 (x = 0.0, 0.05, 0.1 and 0.2) ceramic samples as a consequence of…”
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Enhancement in magnetic properties of Ba-doped BiFeO 3 ceramics by mechanical activation by Layek, Samar, Verma, H.C., Garg, Ashish

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Effect of addition of Cu(II), Ni(II) and Co(II) ions on conversion of crystalline goethite to magnetite in NH3–FeSO4–H2O medium by Mohapatra, M, Anand, S, Das, R.P, Upadhyay, Chandan, Verma, H.C

“…Conversion of crystalline goethite to magnetite was carried out in the presence of Cu(II), Ni(II) or Co(II) ions in NH3--Fe(II)--H2O medium. The conditions…”
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Effect of iron doping concentration on magnetic properties of ZnO nanoparticles by Sharma, Prashant K., Dutta, Ranu K., Pandey, Avinash C., Layek, Samar, Verma, H.C.

“…The ZnO:Fe nanoparticles of mean size 3–10 nm were synthesized at room temperature by simple co-precipitation method. The crystallite structure, morphology and…”
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Effect of annealing on the magnetic properties of ball milled NiO powders by Kisan, Bhagaban, Saravanan, P., Layek, Samar, Verma, H.C., Hesp, David, Dhanak, Vinod, Krishnamurthy, Satheesh, Perumal, A.

“…We report systematic investigations on structural and magnetic properties of nanosized NiO powders prepared by the ball milling process followed by systematic…”
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Synthesis, magnetic and Mössbauer spectroscopic studies of Cr doped lithium ferrite nanoparticles by Srivastava, Manish, Layek, Samar, Singh, Jay, Das, Ashok Kumar, Verma, H.C., Ojha, Animesh K., Kim, Nam Hoon, Lee, Joong Hee

“…•Chromium doped lithium ferrite nanoparticles have been synthesized at different pH.•Distributions of cations over the tetrahedral/octahedral voids have been…”
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Role of surface functionalization in ZnO:Fe nanostructures by Lokesh, R.N., Balakrishnan, L., Jeganathan, K., Layek, Samar, Verma, H.C., Gopalakrishnan, N.

“…•The ex-situ surface functionalization in ZnO:Fe nanostructures by Tri-n-butylamine.•Enhancement of ferromagnetism in ZnO:Fe by amine capping.•The amine…”
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Mechanical strain characteristics of cold worked Fe 72Al 28 and Fe 75Ni 25 alloys: A positron annihilation coincidence Doppler broadening view by Pandey, Brajesh, Verma, H.C.

“…Lattice deformations and texture were induced in Fe 72Al 28 and Fe 75Ni 25 alloys by filing and cold rolling. The deformations and deformation-induced atomic…”
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Effect of size and synthesis route on the magnetic properties of chemically prepared nanosize ZnFe2O4 by UPADHYAY, C, VERMA, H. C, SATHE, V, PIMPALE, A. V

“…Magnetization of the ZnFe2O4 sample of average size 4nm measured with SQUID in the temperature range 5-300K shows anomalous behaviour in field cooled (FC) and…”
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WEB BASED INFORMATION DISSEMINATION ON MANGO TECHNOLOGIES AND ADVISORIES by Verma, H.C., Mishra, D., Ravishankar, H., Rajan, S., Shukla, S.K.

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Application of backscattered electrons in detecting and profiling voids covered by self-supporting metallic thin film by Rajput, Nitul S., Verma, H.C.

“…Summary Locating and profiling porosity or cavities in materials science has been of great interest and importance. However, it has been a great challenge to…”
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Mechanical strain characteristics of cold worked Fe72Al28 and Fe75Ni25 alloys: A positron annihilation coincidence Doppler broadening view by Pandey, Brajesh, Verma, H.C.

“…Lattice deformations and texture were induced in Fe72Al28 and Fe75Ni25 alloys by filing and cold rolling. The deformations and deformation-induced atomic and…”
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Effect of preparation conditions on formation of nanophase Ni–Zn ferrites through hydrothermal technique by Upadhyay, Chandan, Mishra, Devabrata, Verma, H.C., Anand, S., Das, R.P.

“…Nanophase Ni 1− x Zn x Fe 2O 4 ( x= 0, 0.5, 1.0) samples were prepared by chemically precipitating hydroxides followed by hydrothermal processing. The products…”
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