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http://dx.doi.org/10.4313/JKEM.2017.30.2.111

Electromagnetic Properties of Bulk High-Tc Superconductor  

Lee, Sang-Heon (Department of Electronic Engineering, Sunmoon University)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.30, no.2, 2017 , pp. 111-114 More about this Journal
Abstract
In this research, the development of fabrication technique of bulk YBaCuO superconductors for application was studied. In fluence of $BaZrO_3$ addition on magnetization characteristics of thermal pyrolysis textured YBaCuO superconductor was investigated. Fine $BaZrO_3$ particle were dispersed within the textured YBaCuO matrix by means of the thermal pyrolysis processing. Magnetic levitation force for YBaCuO superconductors were obtained using Nd-B-Fe permanent magnet, at 77 K and at the magnetic field from 0 to 5.3 K gauss. In the unadded superconductor and 5 wt% $BaZrO_3$ addition, anomalous magnetization behavior, which is characterized by the intermediate magnetic field, was observed at 77 K. Critical current density was about few hundreds $A/cm^2$ and the magnetic characteristics increased slightly by addition of $BaZrO_3$ powder. Maximum magnetic force was obtained in the YBaCuO superconducting bulk with 3 wt.% $BaZrO_3$ addition.
Keywords
YBaCuO superconductor; Bulk; Magnetic field;
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