Enhancement of bending strain tolerance and current carrying property of MgB2 based multifilamentary wires |
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| Authors: | Syju Thomas Neson Varghese S. Rahul K.M. Devadas K. Vinod U. Syamaprasad |
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| Affiliation: | 1. CERN, Geneva, Switzerland;2. University of Twente, The Netherlands;1. Karlsruher Institut f?r Technologie, Institut f?r Festk?rperphysik, D-76021 Karlsruhe, Germany;2. Departamento de Fisica Aplicada, Centro de Investigaci—n y de Estudios Avanzados del IPN, 97310 M?rida, Yucatán, Mexico;1. Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan;2. Tohoku University, 1-1 Katahira, Aoba-ku, Sendai, 980-8577, Japan;3. Superconductivity Research Laboratory, ISTEC, KSP, 3-2-1 Sakado, Kawasaki, 213-0012, Japan;4. Industrial Superconductivity Technology Research Association (iSTERA), KSP, 3-2-1 Sakado, Kawasaki 213-0012, Japan;1. Russian Academy of Science, Moscow 119991, Russia;2. Institute of Microelectronics and Nanotechnology, Moscow 119991, Russia;3. Moscow Aviation Institute (Technical University), Moscow 107031, Russia;4. Russian Scientific R&D Cable Institute, Moscow 111024, Russia;5. JSC “Konstruktorskoe Buro Khimavtomatiky”, Voronezh 394006, Russia;6. National Nuclear Research University MEPhI, Moscow 115409, Russia;1. Institute of Electrical Engineering, Slovak Academy of Sciences, Dúbravská cesta 9, 841 04 Bratislava, Slovakia;2. Institute of High Pressure Physics, Polish Academy of Sciences, Sokolowska 29/37, 01-142 Warszawa, Poland;3. Institute of Measurement Science, Slovak Academy of Sciences, Bratislava, Slovakia |
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| Abstract: | 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 measured. Both annealed & bent and bent & annealed wires were used for measurement. The JC of annealed & bent wires were found to decrease with decrease in bent diameter and the rate of degradation of JC decreased with increasing number of filaments, while bent & annealed wires almost retained its JC at all diameters studied. |
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