A record-high trapped field of 5.6 T in the stacking of MgB2/TiB2 composite bulks prepared by an in-situ hot isostatic pressing method. (26th October 2020)

• Record Type: Journal Article
• Authors: Naito, Tomoyuki; Takahashi, Yuhei; Awaji, Satoshi
• Is Part Of: Superconductor science & technology. Volume 33:Number 12(2020:Dec.)
• Publication Date: 2020-10-26
• Subjects: trapped field -- bulk magnet -- MgB2/TiB2 composite bulk; Superconductivity -- Periodicals; Superconductors -- Periodicals; 537.623
• DOI: 10.1088/1361-6668/abb203
• Languages: English
• ISSNs: 0953-2048

Abstract

Abstract: We have studied the trapped field properties of triple and double stacking of M g B 2 / T i B 2 composite superconductor bulks magnetized by field-cooled magnetization. The triple-stacked M g B 2 / T i B 2 bulks trapped a magnetic field of 5.58 T successfully at 11.3 K, which was only 0.18 T but evidently higher than the world record trapped field of 5.4 T among M g B 2 bulk magnets. We also found a potential ability of the present M g B 2 / T i B 2 bulks trapping a 7-T class magnetic field at low temperatures below 4.2 K, although the FCM experiments at both 2.2 and 4.2 K were disturbed by the flux jumps.