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Co-addition of nano-carbon and nano-silica: An effective method for improving the in-field properties of magnesium diboride superconductor

Syju Thomas; Rahul, S; Devadas, K M; Neson Varghese; Sundaresan, A; Syamaprasad, U (Elsevier, 2014)

MgB2 superconductor sample co-doped with nano-carbon (n-C) and nano-silica (n-SiO2) is prepared and its structural and superconducting properties are compared with pure and n-C and nano SiC (n-SiC) mono-doped samples. ...
Flux Pinning Properties of Rare Earth Modified (Bi, Pb)-2212 Superconductors

Biju, A; Abhilash Kumar, R G; Aloysius, R P; Syamaprasad, U (IOP Publishing, 2006)

The flux pinning properties of (Bi, Pb)-2212 superconductors modified by the addition of rare earth (RE) elements La, Gd and Yb with varying concentrations are studied. Samples were prepared by a conventional solid state ...
Highly enhanced superconducting properties of Eu-doped (Bi,Pb)-2212

Sarun, P M; Vinu, S; Shabna, R; Biju, A; Syamaprasad, U (Elsevier, 2008)

The structural and superconducting properties of Eu-doped (Bi,Pb)-2212 superconductor have been studied. Eu concentration is varied from x=0.0 to 0.4 in a general stoichiometry of Bi1.6Pb0.5Sr2-xEuxCa1.1Cu2.1Oy. It is found ...
An investigation on the effects of Ag addition in the powder -in-tube processing of long multifilamentary (Bi,Pb) - 2223/Ag superconducting tapes

Sobha, A (Regional Research Laboratry (CSIR), Thiruvananthapuram, 2002-12)
Metal To Insulator Transition Phenomenon in (Bi,Pb)-2212: An Insight Into The Doping Dependent Evolution of A High Temperature Superconductor

Shabna, R (Materials and Minerals Division, National Institute for Interdisciplinary Science and Technology(CSIR), Thiruvananthapuram., 2011-04)
A novel low temperature synthesis route for SmFeAsO1−xFx bulk superconductor with improved transport properties

Anooja, J B; Aswathy, P M; Sarun, P M; Syamaprasad, U (Elsevier, 2012-02-15)

Polycrystalline bulk samples of SmFeAsO1−xFx with 0 ≤x≤0.4 are synthesized at a temperature as low as 850 ◦C using a partially reacted precursor. The temperature dependence of resistivity and ac susceptibility measurements ...
Preparation of in situ MgB2/Fe superconducting tapes with highly densified core by hot pressing of electrically self-heated PIT wires

Vinod, K; Neson Varghese; Rahul, S; Syamaprasad, U (Elsevier, 2009)

Iron-sheathed in situ MgB2 superconducting tapes with high densities were prepared by hot pressing of electrically self-heated powder-in-tube wires. The tapes were characterized for phase purity, density, microstructure ...
The role of Yttrium doping on the structural and superconducting properties of Sm1111 and its comparison with other (RE, Y)1111 (RE La, Ce, and Nd) Iron Oxypnictides

Aswathy, P M; Anooja, J B; Neson Varghese; Syamaprasad, U (Springer/ Plenum Publishers, 2015)

The role of yttrium doping on the structural and superconducting properties of SmFeAsOF (Sm1111) is studied in detail and is compared with other yttrium-doped RE1111 (RE-rare earth) iron oxypnictide superconductors on the ...
Structural and superconducting properties of neodymium added (Bi,Pb)(2)Sr2CaCu2Oy

Biju, A; Sarun, P M; Aloysius, R P; Syamaprasad, U (Elsevier, 2007)

The effects of neodymium (Nd) addition on the phase evolution, structural and superconducting properties of (Bi,Pb)(2)Sr2CaCu2Oy [(Bi,Pb)-2212] prepared by solid state synthesis in bulk polycrystalline form were studied. ...
Studies on preparation and characterization of HTS current leads using multifilamentary Ag and Ag alloy sheathed (Bi, Pb) -2223 superconducting tapes

Aloysis, RP (Regional Research Laboratry (CSIR), Thiruvananthapuram, 2002-12)
Studies on suppression of flux creep and scaling of vortex liquid resistivity in rare earth modified (Bi,Pb)-2212 superconductors

Vinu, S; Syamaprasad, U (Applied Superconductivity and Ceramics Group Materials and Minerals Division, National Institute for Interdisciplinary Science and Technology(CSIR),Thiruvananthapuram, 2011)
Transport properties of sealed MgB2/Fe/Ni multifilamentary wires heat treated in air

Devadas, K M; Rahul, S; Syju Thomas; Neson Varghese; Vinod, K; Syamaprasad, U; Pradhan, S; Chattopadhyay, M K; Roy, S B (Elsevier, 2011)

Ni sheathed multifilamentary MgB2 wires with Fe barrier and Cu stabilizer were prepared by the in situ Powder-In-Tube (PIT) method. After rolling, the ends of the wires were sealed by a simple capping technique and the ...

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