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니켈 분말 성형체의 냉간압연과 열처리로 제조된 YBCO coated conductor용 양축 정렬된 니켈 테이프
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  • 니켈 분말 성형체의 냉간압연과 열처리로 제조된 YBCO coated conductor용 양축 정렬된 니켈 테이프
저자명
이동욱,지봉기,임준형,정충환,주진호,박순동,전병혁,홍계원,김찬중
간행물명
한국초전도·저온공학회논문지
권/호정보
2002년|4권 2호|pp.16-20 (5 pages)
발행정보
한국초전도저온공학회
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기타
이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
서지반출

기타언어초록

Bi-axially textured Ni tapes for YBCO coated conductors were Prepared by cold rolling and heat treatment of Ni Powder compacts. The Ni powder used in this study was 5 urn in particle size and 99.99 % in purity. The process of this study consists of filling of hi powder into a rubber mold, cold-isostatically Pressing and sintering of the powder compacts at 110$0^{circ}C$ for 6h in 96 % Ar - 4 % H$_2$ atmosphere. The sintered compacts were cold rolled with a 5 % step reduction ratio into a 100 micron-thick tapes and then heat-treated at 100$0^{circ}C$ for various time periods. The (200) texture of Ni tape was successfully developed through the recrystallization heat treatment of the cold rolled Ni tapes. At 100$0^{circ}C$, the degree of texture of the heat-treated Ni tapes seems not to be significantly affected by the heat-treatment time. The short heat treatment of S min was sufficient to develop the complete (200) cube texture. The degree of in-Plane and out-of-plane texture of the prepared Ni tapes was 8-10$^{circ}$. The heat treated Ni tapes consisted of equiaxed grains with a size 50-70 microns. and the AFM sol-face roughness was as smooth as 3 nm.

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