Development of rare-earth metal free superconducting strong magnets

2014 Fiscal Year Final Research Report

• Project/Area Number: 23246110
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Physical properties of metals
• Research Institution: The University of Tokyo
• Principal Investigator: KISHIO Kohji 東京大学, 工学(系)研究科(研究院), 教授 (50143392)
• Co-Investigator(Kenkyū-buntansha): YAMAMOTO Akiyasu 東京大学, 大学院工学系研究科, 助教 (20581995) ; OGINO Hiraku 東京大学, 大学院工学系研究科, 助教 (70359545) ; SHIMOYAMA Junichi 東京大学, 大学院工学系研究科, 准教授 (20251366) ; TOMITA Masaru 鉄道総合技術研究所, 研究開発推進室, 担当部長 (40462915) ; ISHIHARA Atsushi 鉄道総合技術研究所, 材料技術研究部, 研究員 (00568347) ; MIRYALA Muralidhar 鉄道総合技術研究所, 材料技術研究部, 主任研究員 (90415951)
• Research Collaborator: AKASAKA Tomoyuki ; SUGINO Sho ; IWASE Kazuyuki ; HIROTA Tetsuya
• Project Period (FY): 2011-04-01 – 2015-03-31
• Keywords: 超伝導 / 磁石

Outline of Final Research Achievements

MgB2 is expected to be applied at 5-30 K using a compact cryocooler as rare-earth meatal free strong superconducting magnets. In this study we have developed reproducible fabrication process for disc-shaped MgB2 bulks with several centimeters in size and trapped field measurement system with GM cryocooler. Trapped field of MgB2 bulks showed several teslas at intermediate temperature which can be easily reached by compact cryocoolers.

Free Research Field

固体化学