Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Neson Varghese"'
Autor:
Ajeesh P. Paulose, K. M. Devadas, Upendran Syamaprasad, S. Rahul, Syju Thomas, Neson Varghese, Manoj Raama Varma
Publikováno v:
Materials Chemistry and Physics. 200:395-401
A comparative study on the structural and superconducting properties of MgB2 Powder-In-Tube (PIT) wires doped with various weight percentage of nano carbon (n C), nano SiC (n SiC) and Burned Rice Husk (BRH) has been carried out. X-Ray diffraction pat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e3780dcf33561a042cb58266eb838341
https://doi.org/10.1016/j.matchemphys.2017.08.009
https://doi.org/10.1016/j.matchemphys.2017.08.009
Autor:
Syamaprasad Upendran, Anooja Jayakumari Babu, Aswathy Pillai Mohan, Manoj Raama Varma, Neson Varghese
Publikováno v:
Materials Science Forum. :595-599
We have studied the impact of simultaneous Ba2+ doping at Sm3+ site (hole doping) and F- doping at O2- site (electron doping) on the structural and superconducting properties of Sm1111 system using a single source, BaF2. With BaF2 doping the extent o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::62376bf2e2351193bd113946d38f909f
https://doi.org/10.4028/www.scientific.net/msf.830-831.595
https://doi.org/10.4028/www.scientific.net/msf.830-831.595
Publikováno v:
Materials Science Forum. :557-560
The influence of reactivity of different sheath metals such as Ag, Fe, Cu, Ni and SS on the superconducting properties of NdFeAsO0.6F0.4 wires has been investigated. The observed structural and superconducting properties of the metal sheathed wires c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ff65b00122e604d1115754f3695e939
https://doi.org/10.4028/www.scientific.net/msf.830-831.557
https://doi.org/10.4028/www.scientific.net/msf.830-831.557
Autor:
C. K. Chandrakanth, Neson Varghese, P. M. Aswathy, N. Devendra Kumar, Upendran Syamaprasad, A. Sundaresan, J. B. Anooja
Publikováno v:
Inorganic Chemistry Frontiers. 2:731-740
The effects of rare earth site doping on the structural, superconducting and magnetic properties of SmFeAsO0.7F0.3 iron pnictide are investigated. Gd3+ and Ce3+ ions are chosen by virtue of their position being on either side of Sm3+. Doping of both
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::127b4c8a39da795fd0555e3d218b8378
https://doi.org/10.1039/c5qi00047e
https://doi.org/10.1039/c5qi00047e
Autor:
Neson Varghese, J. B. Anooja, P. M. Aswathy, N. Devendra Kumar, C. K. Chandrakanth, Upendran Syamaprasad, A. Sundaresan
Publikováno v:
RSC Advances. 5:41484-41492
The influence of rare earth (RE – Ce, Gd) doping at the Nd site in the NdFeAsO0.7F0.3 superconductor wherein Ce and Gd have ionic radii in the order Ce > Nd > Gd is investigated. The structural and superconductivity characterization of the pure and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::adab8d9418019a295953d3ec980218ba
https://doi.org/10.1039/c5ra02499d
https://doi.org/10.1039/c5ra02499d
Publikováno v:
IEEE Transactions on Applied Superconductivity. 24:1-5
In this paper, we report an effort toward the development of general-purpose conduction-cooled current leads based on MgB2, which can carry 2000 A at 25 K. The leads have an overall length of 40 cm and a diameter of 5.8 mm, with Cu end caps with a le
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::add611a8483c49f5d7cbd950af043c94
https://doi.org/10.1109/tasc.2014.2311413
https://doi.org/10.1109/tasc.2014.2311413
Publikováno v:
Journal of Alloys and Compounds. 566:43-49
The transport and magnetic properties of the undoped and yttrium doped NdFeAs(O,F) superconductor are investigated in detail for the first time. The transition temperatures of the yttrium doped samples are found to increase monotonically and attain a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4bcdf843691aaf296b30a24bc172f4c7
https://doi.org/10.1016/j.jallcom.2013.02.125
https://doi.org/10.1016/j.jallcom.2013.02.125
Publikováno v:
Cryogenics. 52:767-770
The effect of bending strain on current carrying capacity of MgB2 multifilamentary wires was studied with 4, 8 and 16 multifilamentary wires. The critical current density (JC) of straight wires and bent wires with 5, 10, and 15 cm diameter was measur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c07946e2bdf84110b5088996488442e0
https://doi.org/10.1016/j.cryogenics.2012.07.007
https://doi.org/10.1016/j.cryogenics.2012.07.007
Autor:
Neson Varghese, P. Anees, S. Rahul, M. K. Chattopadhyay, K. Vinod, Syju Thomas, U. Syamaprasad, S. B. Roy, K. M. Devadas
Publikováno v:
Materials Research Bulletin. 46:2036-2040
MgB 2 bulk samples added with nano SiO 2 and/or nano diamond were prepared by powder-in-sealed-tube (PIST) method and the effects of addition on structural and superconducting properties were studied. X-ray diffraction (XRD) analysis revealed that th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb8d9484c56bbe711fdc87b0f05b6164
https://doi.org/10.1016/j.materresbull.2011.07.005
https://doi.org/10.1016/j.materresbull.2011.07.005
Autor:
S. B. Roy, M. K. Chattopadhyay, S. Rahul, K. M. Devadas, K. Vinod, U. Syamaprasad, Neson Varghese, Subrata Pradhan, Syju Thomas
Publikováno v:
Journal of Alloys and Compounds. 509:8038-8041
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 wires were directly heat treate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a6cb7ab77bea771b07a353e7a18add51
https://doi.org/10.1016/j.jallcom.2011.04.147
https://doi.org/10.1016/j.jallcom.2011.04.147