Search Results - "RAVIKUMAR, H. B"

Studies on electrical conductivity of PVA/graphite oxide nanocomposites: a free volume approach by Ningaraju, S., Ravikumar, H. B.

“…Poly(vinyl alcohol) and graphite oxide (PVA/GO) polymer nanocomposites of different GO wt% have been prepared. The decreased positron lifetime parameter viz.,…”
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Gamma irradiation induced microstructural modification and electrical conductivity of bakelite resistive plate chamber material by Kumar, K. V. Aneesh, Raghavendra, M., Hegde, Vinayakprasanna N., Prakash, A. P. Gnana, Ravikumar, H. B.

“…Polymer-based Bakelite resistive plate chamber detector samples were exposed to 60 Co gamma source for various irradiation doses. To explore the impact of…”
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Room temperature X-ray and positron annihilation lifetime spectroscopic studies of cavansite crystals by Kumar, B. V. Suresh, Ravikumar, H. B., Prakash, A. P. Gnana, Girish, H. N., Ishigaki, Tadashi, Madhusudan, Puttaswamy

“…The positron annihilation lifetime spectroscopy (PALS) of cavansite crystals collected from Wagholi, Pune district of Western Maharastra, India were…”
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Miscibility and phase separation in SAN/PMMA blends investigated by positron lifetime measurements by Kumaraswamy, G.N., Ranganathaiah, C., Urs, M.V. Deepa, Ravikumar, H.B.

“…Miscibility and phase separation in SAN/PMMA blends have been investigated using DSC, IR spectroscopy and positron lifetime spectroscopy (PLS). Single broad…”
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Compatibilizer-induced microstructural changes in poly(trimethylene terephthalate)/EPDM blends studied by the positron annihilation lifetime technique and differential scanning calorimetry by Ravikumar, HB, Ranganathaiah, C

“…Blends of poly(trimethylene terephthalate) (PTT) and ethylene propylene diene monomer (EPDM) with and without the compatibilizer poly (EPM‐graft‐MA) were…”
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Positron annihilation and differential scanning calorimetric study of poly(trimethylene terephthalate)/EPDM blends by Ravikumar, H.B., Ranganathaiah, C., Kumaraswamy, G.N., Thomas, S.

“…The blends of poly(trimethylene terephthalate) (PTT) and ethylene propylene diene monomer (EPDM) with different composition have been studied by positron…”
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Influence of free volume on the mechanical properties of Epoxy/poly (methylmethacrylate) blends by RAVIKUMAR, H. B, RANGANATHAIAH, C, KUMARASWAMY, G. N, SIDDARAMAIAH

“…Positron lifetime measurements have been performed to investigate the free volume dependence of the mechanical properties of Epoxy/poly methyl methacrylate…”
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Influence of nano Fe3O4 particles on the free volume and dielectric behaviour of Polyisobutyl methacrylate by Raghavendra, M., Hegde, N. Vinayakaprasanna, Alnaggar, Gubran, Ravikumar, H. B.

“…Polyisobutyl methacrylate (PiBMA)/ferrous-ferric oxide (Fe 3 O 4 ) polymer nanodielectric films with different wt% of Fe 3 O 4 nanoparticles (from 0.2wt.% to…”
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Effect of Ar+ Ion Implantation-Induced Microstructural Modifications on Electrical Conductivity of Glass RPC Detector Materials by Kumar, K. V. Aneesh, Ravikumar, H. B.

“…Argon ions with energy of 1 MeV and 500 keV are implanted at various fluences into Asahi and Saint Gobain clear float glasses used for resistive plate chamber…”
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Studies on microstructural dependence of nonlinear optical properties in PSAN/CdS polymer nanocomposites by Boranna, M. P., Chandrakantha, Kampalapura S., Gummagol, Neelamma B., Mahesh, S. S., Patil, Parutagouda Shankaragouda, Srikantaswamy, S., Ravikumar, H. B.

“…The Cadmium Sulphide (CdS) nanoparticles were synthesized by microwave hydrothermal method. Poly(styrene-co-acrylonitrile) (PSAN)/CdS polymer nanocomposites…”
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Effect of CeO2 nanoparticles on dielectric properties of PVB/CeO2 polymer nanodielectrics: a positron lifetime study by Raghavendra, M., Jagadish, K., Srikantaswamy, S., Pradeep, T. M., Gnana Prakash, A. P., Ravikumar, H. B.

“…To produce a polymer nanodielectric material with low dielectric constant for high speed communication network cables, polymer nanodielectrics of Polyvinyl…”
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Effect of TiO2 nano‐filler on the electrical conductivity and free volume parameters of PSAN/TiO2 nanocomposites by Ningaraju, S., Ravikumar, H.B.

“…To explore the effect of filler on the electrical conductivity of polymer nanocomposites, polystyrene co‐acrylonitrile and TiO2 (PSAN/TiO2) nanocomposites of…”
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Differential scanning calorimetric and free volume study of reactive compatibilization by EPM-g-MA of poly(trimethylene terephthalate)/EPDM blends by Ravikumar, H. B., Ranganathaiah, C., Kumaraswamy, G. N., Deepa Urs, M. V., Jagannath, J. H, Bawa, A. S., Thomas, Sabu

“…Differential scanning calorimetry (DSC) and positron annihilation lifetime measurements have been carried out to study the effect of the compatibilizer maleic…”
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Effect of hydrodynamic interaction on free volume changes and the mechanical properties of SGFR‐PBT composites by Munirathnamma, L.M., Ravikumar, H.B.

“…In order to explore the effect of short glass fiber reinforcement (SGFR) on the mechanical properties of polybutylene terephthalate (PBT), 10–40 wt% of short…”
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Microstructural characterization of short glass fibre reinforced polyethersulfone composites by Munirathnamma, L. M., Ravikumar, H. B.

“…ABSTRACT To explore the effect of short glass fiber reinforcement (SGFR) on the mechanical properties of polyethersulfone (PES), microstructural…”
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Effect of electron beam irradiation on the microstructure, optical and electrical properties of glass resistive plate chamber detector material by Aneeshkumar, K. V., Krishnaveni, S., Ranganathaiah, C., Ravikumar, H. B.

“…The glass resistive plate chamber (RPC) detector materials were exposed to 8 MeV electron beam from 20 to 100 kGy in steps of 20 kGy. In order to study the…”
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Free volume and the physico-mechanical behaviour of polyurethane/polyacrylonitrile interpenetrating polymer networks: positron annihilation results by Kumar, H, Siddaramaiah, Kumaraswamy, GN, Ravikumar, HB, Ranganathaiah, C

“…A series of semi‐interpenetrating polymer networks (SIPNs) of polyurethane (PU) and polyacrylonitrile (PAN) in the weight ratios 90/10, 70/30, 60/40 and 50/50…”
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Influence of oxygen ion implantation on the free volume parameters and electrical conductivity of a polymer‐based bakelite RPC detector material by Aneesh Kumar, K. V., Kumaraswamy, G. N., Ranganathaiah, C., Ravikumar, H. B.

“…ABSTRACT We have investigated the effect of ion implantation on structural modification and the electrical conductivity of Bakelite‐resistive plate chamber…”
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Synthesis of graphite oxide nanoparticles and conductivity studies of PSF/GO and PSAN/GO polymer nanocomposites by Ningaraju, S., Jagadish, K., Srikantaswamy, S., Gnana Prakash, A.P., Ravikumar, H.B.

“…[Display omitted] •PALS results show noticeable changes in PSF/GO and PSAN/GO polymer nanocomposites.•DC conductivity is very high in PSF/GO nanocomposites for…”
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Conductivity and free volume studies on bismuth sulfide/PVA:polypyrrole nanocomposites by Hebbar, V, Ravikumar, H B, Nandimath, M, Masti, S, Munirathnamma, L M, Naik, J, Bhajantri, R F

“…The polymer composite films of polyvinylalcohol:polypyrrole blend containing different wt% of bismuth sulfide (Bi 2 S 3 ) particles are prepared through in…”
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