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Method for preparing yttrium-barium-copper-oxygen superconducting film by using zirconium-doped low-fluorine hybrid solution
The invention discloses a method for preparing an yttrium-barium-copper-oxygen superconducting film by using a zirconium-doped low-fluorine hybrid solution, and belongs to the technical field of preparation of high-temperature superconducting coating conductors. According to the preparation method, the ratio of fluorine-containing barium salt to fluorine-free barium salt is controlled to obtain aprecursor solution of which the F/Ba is more than or equal to 1 and less than 2, and Zr ions are introduced on the basis of the precursor solution to prepare a zirconium-doped low-fluorine hybrid solution; in order to avoid or relieve the defects of cation segregation and nonuniform CuO particle size, the method is combined with an ultraviolet irradiation auxiliary heat treatment method, the mixed-phase film containing a small amount of BaCO3 and BaF2 is obtained, a BZO phase is formed after the mixed phase is subjected to subsequent high-temperature crystallization heat treatment, and the Zr4+-YBCO superconducting film with excellent performance is prepared through conversion.
本发明公开了一种锆掺杂低氟杂化溶液制备钇钡铜氧超导薄膜的方法，属于高温超导涂层导体制备技术领域。本发明中的制备方法通过控制含氟和无氟钡盐的比例，获得了溶液中1≤F/Ba<2的前驱溶液，并在此基础上引入Zr离子，制备了锆掺杂的低氟杂化溶液；为了避免或缓解阳离子的偏析以及CuO颗粒的大小不均一的缺陷，本发明方法结合紫外辐照辅助热处理方法，获得了既含少量BaCO，又含BaF的混合相薄膜，而这些混合相经过后续的高温晶化热处理后，形成了BZO相，即转化制得了性能优良的Zr‑YBCO超导薄膜。
Method for preparing yttrium-barium-copper-oxygen superconducting film by using zirconium-doped low-fluorine hybrid solution
The invention discloses a method for preparing an yttrium-barium-copper-oxygen superconducting film by using a zirconium-doped low-fluorine hybrid solution, and belongs to the technical field of preparation of high-temperature superconducting coating conductors. According to the preparation method, the ratio of fluorine-containing barium salt to fluorine-free barium salt is controlled to obtain aprecursor solution of which the F/Ba is more than or equal to 1 and less than 2, and Zr ions are introduced on the basis of the precursor solution to prepare a zirconium-doped low-fluorine hybrid solution; in order to avoid or relieve the defects of cation segregation and nonuniform CuO particle size, the method is combined with an ultraviolet irradiation auxiliary heat treatment method, the mixed-phase film containing a small amount of BaCO3 and BaF2 is obtained, a BZO phase is formed after the mixed phase is subjected to subsequent high-temperature crystallization heat treatment, and the Zr4+-YBCO superconducting film with excellent performance is prepared through conversion.
本发明公开了一种锆掺杂低氟杂化溶液制备钇钡铜氧超导薄膜的方法，属于高温超导涂层导体制备技术领域。本发明中的制备方法通过控制含氟和无氟钡盐的比例，获得了溶液中1≤F/Ba<2的前驱溶液，并在此基础上引入Zr离子，制备了锆掺杂的低氟杂化溶液；为了避免或缓解阳离子的偏析以及CuO颗粒的大小不均一的缺陷，本发明方法结合紫外辐照辅助热处理方法，获得了既含少量BaCO，又含BaF的混合相薄膜，而这些混合相经过后续的高温晶化热处理后，形成了BZO相，即转化制得了性能优良的Zr‑YBCO超导薄膜。
Method for preparing yttrium-barium-copper-oxygen superconducting film by using zirconium-doped low-fluorine hybrid solution
一种锆掺杂低氟杂化溶液制备钇钡铜氧超导薄膜的方法
BIAN WEIBAI (Autor:in) / LIU SHUO (Autor:in) / PAN SHIYUN (Autor:in) / XU WEILONG (Autor:in) / JIANG XIAOYAN (Autor:in) / ZHENG MIN (Autor:in)
01.05.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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