Hyun Sung Noh, Younghoon Kim, Minkyu Sun, Mtangi Mohamed Mussa, Haigun Lee
언어
영어(ENG)
URL
https://www.earticle.net/Article/A494005
※ 기관로그인 시 무료 이용이 가능합니다.
※ 학술발표대회집, 워크숍 자료집 중 4페이지 이내 논문은 '요약'만 제공되는 경우가 있으니, 구매 전에 간행물명, 페이지 수 확인 부탁 드립니다.
4,000원
원문정보
초록
영어
High-temperature superconductor (HTS) coils are of critical importance in applications that require intense magnetic fields, nuclear magnetic resonance (NMR) and magnetic resonance imaging (MRI). However, these coils undergo significant mechanical deformation due to Lorentz forces. In this study, we investigated the mechanical stability and electrical performance of GdBCO superconducting tapes subjected to partial surface abrasion (30%, 60%, and 90%) with 80-grit sandpaper. The results show that increasing the abrasion-treated surface fraction progressively reduces mechanical deformation and enhances critical-current retention under applied nominal hoop stress, while also increasing the turn-to-turn characteristic resistance. These results demonstrate the coupled influence of partial surface abrasion on the mechanical and electrical characteristics of GdBCO NI coils.
목차
Abstract 1. INTRODUCTION 2. EXPERIMENTAL METHOD 2.1. Coil Construction 2.2. Device for Application of Hoop Stress 3. SURFACE PROFILE AND TEST RESULTS 3.1. Surface Analysis of Abraded GdBCO CC tape 3.2. Mechanical Performance 3.3. Critical Current Stability 3.4. Electrical Discharge Characteristics 4. DISCUSSION 5. CONCLUSION ACKNOWLEDGMENT REFERENCES