Development of high field magnets with high stability, high mechanical robustness, and highly economical operation

2023 Fiscal Year Final Research Report

• Project/Area Number: 20H02125
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Review Section: Basic Section 21010:Power engineering-related
• Research Institution: Hokkaido University
• Principal Investigator: Noguchi So 北海道大学, 情報科学研究院, 教授 (30314735)
• Co-Investigator(Kenkyū-buntansha): 金 錫範 岡山大学, 自然科学学域, 教授 (00287963)
• Project Period (FY): 2020-04-01 – 2024-03-31
• Keywords: 高磁場発生 / 超伝導マグネット / 安定性・耐久性

Outline of Final Research Achievements

As a fundamental investigation of the development of ultrahigh magnetic field beyond 30 T, we have conducted the enhancement of magnet mechanical-robustness, stability, and economical operation. To clarify the damage mechanism of rare-earth barium copper oxide (REBCO) tapes under high magnetic field, we have developed a simulation method to investigate the electromagnetic and mechanical behaviors. To enhance the stability, we have proposed a co-winding method of metal tapes between turns of no-insulation REBCO pancake coils. The reduction of turn-to-turn current reduces losses and enhances economy.

Free Research Field

超伝導工学

Academic Significance and Societal Importance of the Research Achievements

エネルギー分野、製薬分野、医療分野などで30 Tを超す超高磁場の利用が求められている。30 Tを超えるREBCOマグネットの開発は進んでいるが、いずれのマグネットも機械的に破損、破壊されている。そこで、機械的破損、破壊の原因を追求することで、超高磁場発生用マグネットの耐久性向上、安定性向上に貢献した。これにより、30 T超マグネットの技術開発が進み、種々の分野での実用化へ近づいた。