TY - JOUR
T1 - A Comparative Study of Experimental and Simulated Trapped Magnetic Field of MgB2 Bulks Prepared by the Magnesium Vapor Transport Process
AU - Ikeda, N.
AU - Ainslie, Mark
AU - Tanaka, R.
AU - Yamamoto, A.
N1 - Publisher Copyright:
IEEE
Publisher Copyright:
© 2002-2011 IEEE.
PY - 2023/3/15
Y1 - 2023/3/15
N2 - A prototype MgB2 bulk with a diameter of 20 mm and a thickness of 2 mm was synthesized using the MVT (Magnesium Vapor Transport) method, which can realize dense and high-purity MgB2 bulks by transporting and diffusing pure magnesium vapor into boron pellets. Owing to its superior Jc-B characteristic, the obtained bulk by the MVT method exhibited, compared to similar bulks synthesized by the conventional in-situ method, a comparable trapped magnetic field at only one-tenth the thickness. Using the measured Jc(B) data, the influence of the geometry and the size of the bulk synthesized by the MVT method on the trapped magnetic field was investigated by numerical simulation. The simulation results suggest that a bulk fabricated by the MVT method can efficiently achieve a large trapped magnetic field with a thinner thickness for a fixed diameter than a bulk fabricated by the in-situ method.
AB - A prototype MgB2 bulk with a diameter of 20 mm and a thickness of 2 mm was synthesized using the MVT (Magnesium Vapor Transport) method, which can realize dense and high-purity MgB2 bulks by transporting and diffusing pure magnesium vapor into boron pellets. Owing to its superior Jc-B characteristic, the obtained bulk by the MVT method exhibited, compared to similar bulks synthesized by the conventional in-situ method, a comparable trapped magnetic field at only one-tenth the thickness. Using the measured Jc(B) data, the influence of the geometry and the size of the bulk synthesized by the MVT method on the trapped magnetic field was investigated by numerical simulation. The simulation results suggest that a bulk fabricated by the MVT method can efficiently achieve a large trapped magnetic field with a thinner thickness for a fixed diameter than a bulk fabricated by the in-situ method.
KW - MgB2
KW - bulk magnets
KW - trapped magnetic field
KW - numerical modelling
KW - magnesium vapor transport
UR - http://www.scopus.com/inward/record.url?scp=85149851613&partnerID=8YFLogxK
U2 - 10.1109/TASC.2023.3253070
DO - 10.1109/TASC.2023.3253070
M3 - Article
SN - 1051-8223
VL - 33
JO - IEEE Transactions on Applied Superconductivity
JF - IEEE Transactions on Applied Superconductivity
IS - 5
M1 - 6800505
ER -