【作者】 史锴； 杨坚； 刘慧舟； 胡广勇； 舒勇华； 袁冠森；

【Author】 SHI Kai;YANG Jian;LIU Hui-zhou;HU Guang-yong;SHU Yong-hua;YUAN Guan-sen General Research Institute for Nonferrous Metal, Beijing, 100088, China; Tsinghua University Beijing, 100084, China

【机构】 北京有色金属研究总院超导中心；

【摘要】 Ni 是制备RABiTS 基带的常用材料。然而当Ni 表面沉积YBCO 厚膜以后,由于Ni 具有铁磁性,在交流传输和电工应用中,会增加磁滞损耗。与Ni相比,Cu-Ni 合金属于无磁性的材料。因此提出了无磁性织构基带的课题。系统地研究了它们的织构形成及转变规律,并最终重复地制备了具有稳定的再结晶{001}<100>⒎街沟腃u-Ni 合金基带和纯Ni基带。以及在获得了高度立方取向的Cu-Ni 合金基带后,用表面氧化外延的方法生成了NNiO(200)薄膜。为以Cu-Ni 合金作为基带材料制备高临界电流密度的YBCO 厚膜奠定了良好的基础。更多还原

【Abstract】 In a large portion of the work on RABiTS, nickel has been used as the texture material. However, for YBCOtape on Ni, additional hysteretic losses could increase when it transports AC current and is used in electricianapplocations. It is understood that the ferromagnetic Ni may contribute to the losses in that case. By comparison withnickel, Cu-Ni alloy is non-magnetic material. Therefore a task of non-ferromagnetic textured tapes was broughtforward. A systematic study of texturing mechanism in pure Ni and Cu-Ni alloys is presented. Sharp cube textured Cu-Ni and pure Ni substrate can be obtained in a reproducible way after heavy cold deformation and recrystallization.Meanwhile, a SOE method was used to form NiO(200) on the Cu-Ni alloy substrate as a buffer layer.Cu-Ni non-magnetic tapes as a substrate were made for YBCO thick film deposition.更多还原