High density MgB2 bulk materials of different grains size : Supercurrents instability and losses in variable magnetic fields

• Published in: IEEE transactions on applied superconductivity Vol. 15; no. 2; pp. 3230 - 3233
• Main Authors: GIUNCHI, G, GINOCCHIO, S, RAINERI, S, BOTTA, D, GERBALDO, R, MINETTI, B, QUARANTIELLO, R, MATRONE, A
• Format: Conference Proceeding Journal Article
• Language: English
• Published: New York, NY Institute of Electrical and Electronics Engineers 01-06-2005; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Applied sciences; Electrical engineering. Electrical power engineering; Electrical machines; Electronic equipment and fabrication. Passive components, printed wiring boards, connectics; Electronics; Exact sciences and technology; Magnetic devices; Magnetic fields; Miscellaneous; Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices; Transformers and inductors; Magnetic screen; Grain size analysis; bulk MgB2; High density; Temperature effect; AC susceptibility; Low frequency; Inductor; Grain size distribution; Damage prevention; Energy loss; Iron loss; magnetic screening; Electric motor; Magnetic field; Resistor; High temperature superconductor; Bulk density; Grain size; Temperature distribution; Critical state model; Protective device; Cylindrical shape; Fault current limiters; Thickness; Screening; AC losses
• ISSN: 1051-8223; 1558-2515
• DOI: 10.1109/TASC.2005.848812

The bulk MgB2 material shows very promising characteristics to be applied in many AC devices, i.e. as electric motors, as magnetic field screening apparatus or as variable inductor or resistor for Fault Current Limitation.