- Sm 첨가 F-free Y & Cu 전구용액의 합성 및 열처리 공정의 최적화
- ㆍ 저자명
- 김영국,유재무,정국채,고재웅,Kim. Young-Kuk,Yoo. Jai-Moo,Chung. Kook-Chae,Ko. Jae-Woong
- ㆍ 간행물명
- 한국초전도·저온공학회논문지
- ㆍ 권/호정보
- 2007년|9권 1호|pp.1-4 (4 pages)
- ㆍ 발행정보
- 한국초전도저온공학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
The total Fluorine content in the precursor solution for MOD processing of YBCO coated conductors can be significantly reduced by synthesizing precursor solution with F-free Y & Cu precursor and Barium trifluoroacetate(TFA). It was shown that crack-free and uniform precursor films were formed after calcinations in humidified oxygen atmosphere. Less than 2 hours are required to finish the calcinations process and XRD measurement shows that $BaF_2,;CuO,;Y_2O_3$ are major constituent of calcined precursor films. Film thickness after calcinations was improved to be 2.8um by applying slot-die coating method. In particular, addition of Samarium shows critical current of $I_c=273A/cm-w(J_c=3.8MA/cm^2)$. It is shown that uniform and fast processing route to YBCO coated conductor with high Ic can be provided by employing F-free Y & Cu precursor solution in MOD process.