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Shelly, M. and Raghavendra, M. and Prabhu, A. and Ravikumar, H. B. and Mathew, M. and Francis, T. (2022) Improved mechanical and microstructural performance of high-density polyethylene-chitosan-hydroxyapatite composites as potential bone implant materials. Materials Today Sustainability, 19. ISSN 2589-2347
Raghavendra, M. and Jagadish, K. and Srikantaswamy, S. and Pradeep, T. M. and Gnana Prakash, A. P. and Ravikumar, H. B. (2021) Effect of CeO2 nanoparticles on dielectric properties of PVB/CeO2 polymer nanodielectrics: a positron lifetime study. Journal of Materials Science: Materials in Electronics, 33. pp. 1063-1077. ISSN 1573-482X
Aneesh Kumar, K. V. and Raghavendra, M. and Hegde, Vinayakprasanna N. and Gnana Prakash, A. P. and Ravikumar, H. B. (2021) Gamma irradiation induced microstructural modifcation and electrical conductivity of bakelite resistive plate chamber material. Journal of Radioanalytical and Nuclear Chemistry, 327 (2). pp. 821-829.
Kumar, K. V. Aneesh and Ravikumar, H. B. (2020) Effect of Ar(+)Ion Implantation-Induced Microstructural Modifications on Electrical Conductivity of Glass RPC Detector Materials. Journal of Electronic Materials, 49 (10). pp. 5831-5839. ISSN 1543-186X
Valsan, E. Kavya and John, Anju and Raghavendra, M. and Ravikumar, H. B. (2020) Free Volume Controlled Ionic Conductivity in Poly Vinyl Alcohol/Zinc Acetate Solid Polymer Electrolytes. Journal of The Electrochemical Society, 167 (6). ISSN 1945-7111
Kumar, K. V. Aneesh and Ravikumar, H. B. (2020) Studies on thermally induced microstructural modifications and electrical conductivity in glass RPC detector materials. Journal of Non-Crystalline Solids, 528. ISSN 1873-4812
Aneesh Kumar, K. V. and Krishnaveni, S. and Asokan, K. and Ranganathaiah, C. and Ravikumar, H. B. (2018) Comparative study of 150 keV Ar+ and O+ ion implantation induced structural modification on electrical conductivity in Bakelite polymer. Journal of Physics and Chemistry of Solids, 113. 74 - 81. ISSN 0022-3697
Kumar, K. V. A. and Ningaraju, S. and Ravikumar, H. B. (2018) Effect of 250 kev oxygen ion implantation induced structural modifications in glass rpc detector materials. In: International conference on Recent Advances in Materials Science and Biophysics (RAMSB-2018).
Ningaraju, S. and Ravikumar, H. B. (2018) Effect of TiO2 nano-filler on the electrical conductivity and free volume parameters of PSAN/TiO2 nanocomposites. Polymer Composites, 39 (5). pp. 1403-1412.
Ningaraju, S. and Ravikumar, H. B. (2018) Effect of TiO2 nano‐filler on the electrical conductivity and free volume parameters of PSAN/TiO2 nanocomposites. Polymer Composites, 39 (5). pp. 1403-1412. ISSN 1548-0569
Munirathnamma, L. M. and Ravikumar, H. B. (2018) Effect of hydrodynamic interaction on free volume changes and the mechanical properties of SGFR-PBT composites. Polymer Composites, 39 (6). pp. 1878-1886.
Munirathnamma, L. M. and Ravikumar, H. B. (2018) Effect of hydrodynamic interaction on free volume changes and the mechanical properties of SGFR‐PBT composites. Polymer Composites, 39 (6). pp. 1878-1886. ISSN 1548-0569
Ningaraju, S. and Hegde, Vinayakprasanna N. and Gnana Prakash, A. P. and Ravikumar, H. B. (2018) Free volume dependence on electrical properties of Poly (styrene co-acrylonitrile)/Nickel oxide polymer nanocomposites. Chemical Physics Letters, 698. 24 - 35. ISSN 0009-2614
Renu Jose and Ravikumar, H. B. and Munirathnamma, L. M. and Varghese, Lity Alen and Unnikrishnan, G. (2018) Microstructural analysis of natural rubber/millable polyurethane blends using positron annihilation lifetime spectroscopy. Polymer-Plastics Technology and Engineering, 57 (3). pp. 196-205. ISSN 1525-6111
Munirajappa, M. L. and Ravikumar, H. B. (2018) Microstructural characterization of short glass fiber and PAN based carbon fiber reinforced nylon 6 polymer composites. Polymer Engineering and Science, 58 (8). pp. 1428-1437. ISSN 1548-2634
Ramdas, M. Ragin and Vijayalakshmi, K. P. and Munirathnamma, L. M. and Ravikumar, H. B. and Santhosh Kumar, K. S. (2018) Shape memory polytriazole elastomers from aromatic monomers: Synthesis and properties. Materials Today Communications, 17. 180 - 186.
Ningaraju, S. and Gnana Prakash, A. P. and Ravikumar, H. B. (2018) Studies on free volume controlled electrical properties of PVA/NiO and PVA/TiO2 polymer nanocomposites. Solid State Ionics, 320. 132 - 147. ISSN 0167-2738
Aneesh Kumar, K. V. and Krishnaveni, S. and Ranganathaiah, C. and Ravikumar, H. B. (2017) Effect of electron beam irradiation on the microstructure, optical and electrical properties of glass resistive plate chamber detector material. Applied Physics A, 123 (8). ISSN 1432-0630
Aneesh Kumar, K. V. and Munirathnamma, L. M. and Ningaraju, S. and Ranganathaiah, C. and Nambissan, P. M. G. and Ravikumar, H. B. (2017) Effect of argon ion implantation on the microstructure and electrical conductivity of a polymer based bakelite RPC detector material. AIP Conference Proceedings, 1832 (1). ISSN 1551-7616
Aneesh Kumar, K. V. and Kumaraswamy, G. N. and Ranganathaiah, C. and Ravikumar, H. B. (2017) Influence of oxygen ion implantation on the free volume parameters and electrical conductivity of a polymer-based bakelite RPC detector material. Journal of Applied Polymer Science, 134 (24). ISSN 1097-4628
Ningaraju, S. and Ravikumar, H. B. (2017) Ionic and electronic transport in PSF/NiO and PSF/TiO2 polymer nanocomposites: a positron lifetime study. Solid State Ionics, 310. 81 - 94. ISSN 0167-2738
Aneesh Kumar, K. V. and Krishnaveni, S. and Nambissan, P. M. G. and Ranganathaiah, C. and Ravikumar, H. B. (2017) Oxygen ion implantation induced structural modifications and electrical conductivity in glass RPC detector materials: A positron lifetime study. Journal of Non-Crystalline Solids, 471. 151 - 159. ISSN 1873-4812
Munirathnamma, L. M. and Ravikumar, H. B. (2016) Microstructural characterization of short glass fibre reinforced polyethersulfone composites: A positron lifetime study. Journal of Applied Polymer Science, 133 (32). 43647 -(1.
Aneesh Kumar, K. V. and Ningaraju, S. and Munirathnamma, L. M. and Ravikumar, H. B. and Ranganathaiah, C. (2015) Electron beam induced microstructural changes and electrical conductivity in bakelite polymer rpc detector material: a positron lifetime study. Journal of Physics: Conference Series, 618 (1). 012032.
Aneesh Kumar, K. V. and Ravikumar, H. B. and Ganesh, S. and Ranganathaiah, C. (2015) Electron beam induced microstructural changes and electrical conductivity in bakelite rpc detector material. IEEE TRANSACTIONS ON NUCLEAR SCIENCE, 62 (1, 2). pp. 306-313. ISSN 1558-1578
Meghala, D. and Ramya, P. and Pasang, T. and Ravikumar, H. B. and Ranganathaiah, C. (2012) Information on individual interfaces in ternary polymer blends from positron annihilation lifetime studies. AIP Conference Proceedings, 1447 (1). pp. 641-642. ISSN 1551-7616
Raj, J. M. and Altaweel, Abdullah M. A. M. and Chandrashekara, M. N. and Ramya, P. and Ravikumar, H. B. and Ranganathaiah, C. (2011) An effective tool to characterize adhesion at the interface of binary polymer blends: a free volume study. JOURNAL OF POLYMER ENGINEERING, 31 (2-3, S). pp. 93-96.
Altaweel, Abdullah M. A. M. and Ravikumar, H. B. and Ranganathaiah, C. (2009) Influence of free volume on the mechanical properties of epoxy based composites: a correlation study. Physica Status Solidi C: Conferences and Critical Reviews, 6 (11). pp. 2401-2403.
Subramani, A. K. and Byrappa, K. and Kumaraswamy, G. N. and Ravikumar, H. B. and Ranganathaiah, C. and Rai, K. M. Lokanatha and Ananda, S. and Yoshimura, M. (2007) Hydrothermal preparation and characterization of TiO2:AC composites. Materials Letters, 61 (26). 4828 - 4831. ISSN 1873-4979
Kumaraswamy, G. N. and Ranganathaiah, C. and Urs, M. V. Deepa and Ravikumar, H. B. (2006) Miscibility and phase separation in SAN/PMMA blends investigated by positron lifetime measurements. European Polymer Journal, 42 (10). 2655 - 2666. ISSN 1873-1945
Ravikumar, H. B. and Ranganathaiah, C. and Kumaraswamy, G. N. and Deepa Urs, M. V. and Jagannath, J. H. and Bawa, A. S. and Thomas, Sabu (2006) Differential scanning calorimetric and free volume study of reactive compatibilization by EPM-g-MA of poly(trimethylene terephthalate)/EPDM blends. Journal of Applied Polymer Science, 100 (1). pp. 740-747. ISSN 1097-4628
Ravikumar, H. B. and Ranganathaiah, C. (2005) Compatibilizer-induced microstructural changes in poly(trimethylene terephthalate)EPDM blends studied by the positron annihilation lifetime technique and differential scanning calorimetry. Polymer International, 54 (9). pp. 1288-1295. ISSN 1097-0126
Ravikumar, H. B. and Ranganathaiah, C. and Kumaraswamy, G. N. and Siddaramaiah (2005) Influence of free volume on the mechanical properties of Epoxy/poly (methylmethacrylate) blends. Journal of Materials Science, 40 (24). pp. 6523-6527. ISSN 1573-4803
Ravikumar, H. B. and Ranganathaiah, C. and Kumaraswamy, G. N. and Thomas, S. (2005) Positron annihilation and differential scanning calorimetric study of poly(trimethylene terephthalate)/EPDM blends. Polymer, 46 (7). 2372 - 2380. ISSN 0032-3861
Ravikumar, H. B. and Ranganathaiah, C. and Kumaraswamy, G. N. and Thomas, S. (2005) Positron annihilation and differential scanning calorimetric study of poly(trimethylene terephthalate)EPDM blends. Polymer, 46 (7). 2372 - 2380. ISSN 0032-3861
Thimmegowda, M. C. and Ravikumar, H. B. and Ranganathaiah, C. (2004) Water diffusion in a soft contact lens polymer and its tolerance to UV radiation studied by positron lifetime technique. Journal of Applied Polymer Science, 92 (2). pp. 1355-1366. ISSN 0021-8995
