TY - JOUR
T1 - Electromechanical Properties Evaluation of Multifilamentary MgB2 Wires with Different Reinforcements
AU - Diaz, Mark A.
AU - Velasco, Madelene
AU - Shin, Hyung Seop
AU - Oguro, Hidetoshi
AU - Awaji, Satoshi
N1 - Funding Information:
Manuscript received September 21, 2019; accepted March 16, 2020. Date of publication March 23, 2020; date of current version April 13, 2020. This work was supported in part by the National Research Foundation of Korea under Grant NRF-2017-001901 funded by the Ministry of Science and ICT (MSIT), Republic of Korea, in part by the Institute for Materials Research, Tohoku University, under the GIMRT Program 19H0502, and in part by the Korea Electric Power Corporation under Grant R18XA03. (Corresponding author: Hyung-Seop Shin.) Mark A. Diaz, Madelene Velasco, and Hyung-Seop Shin are with the Department of Mechanical Design Engineering, Graduate School, Andong National University, Andong 36729, South Korea (e-mail: kram09.mad@gmail.com; velascomadelene@yahoo.com; hsshin@anu.ac.kr).
Publisher Copyright:
© 2002-2011 IEEE.
PY - 2020/6
Y1 - 2020/6
N2 - Magnesium diboride (MgB2) wires are highly attractive for various applications, given their high critical transition temperatures. The brittle compound filaments are protected by metallic sheaths that provide sufficiently strong reinforcement. The mechanical reinforcement provided to the brittle wires compensates for this weakness and enhances their electromechanical properties. Therefore, MgB2 wires can be considered a promising alternative to high-temperature superconducting wires in low magnetic fields such as those used in magnetic resonance imaging, wind power generators, and other applications. This study focused on the evaluation of the electromechanical behaviors of multifilamentary MgB2 wires of various configurations and with various sheaths. The irreversible strain/stress limits for Ic degradation were evaluated under practical environmental conditions at a magnetic field of 2 T and a temperature of 20 K. The influences of the reinforcing materials on the electromechanical properties were investigated as was the temperature dependence of the mechanical properties.
AB - Magnesium diboride (MgB2) wires are highly attractive for various applications, given their high critical transition temperatures. The brittle compound filaments are protected by metallic sheaths that provide sufficiently strong reinforcement. The mechanical reinforcement provided to the brittle wires compensates for this weakness and enhances their electromechanical properties. Therefore, MgB2 wires can be considered a promising alternative to high-temperature superconducting wires in low magnetic fields such as those used in magnetic resonance imaging, wind power generators, and other applications. This study focused on the evaluation of the electromechanical behaviors of multifilamentary MgB2 wires of various configurations and with various sheaths. The irreversible strain/stress limits for Ic degradation were evaluated under practical environmental conditions at a magnetic field of 2 T and a temperature of 20 K. The influences of the reinforcing materials on the electromechanical properties were investigated as was the temperature dependence of the mechanical properties.
KW - Irreversible strain/stress limit
KW - mechanical reinforcements
KW - multifilamentary MgB2 wires
UR - http://www.scopus.com/inward/record.url?scp=85084115783&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85084115783&partnerID=8YFLogxK
U2 - 10.1109/TASC.2020.2982394
DO - 10.1109/TASC.2020.2982394
M3 - Article
AN - SCOPUS:85084115783
SN - 1051-8223
VL - 30
JO - IEEE Transactions on Applied Superconductivity
JF - IEEE Transactions on Applied Superconductivity
IS - 4
M1 - 9044429
ER -