Recrystallization Texture and Microstructure of Metal Substrate for Y123 Coated Superconductor
来源期刊：JOURNAL OF RARE EARTHS2003年第4期
论文作者：杨坚 刘慧舟 史锴 袁冠森
Key words：metal materials; high temperature superconductor; cube texture; substrate; twin; rare earths;
Abstract: The cube textured pure Ni and non-magnetic Cu-Ni tapes were obtained by rolling and recrystallization, and these tapes are suitable as substrates of the second generation high temperature superconducting tape. The texture of tapes was studied using Orientation Distribution Function (ODF) and φ-scans. The results indicate that sharp cube texture of Cu0.70Ni0.30 and pure Ni was formed at 1000 ℃ and that of Cu0.85Ni0.15 was formed at 900 ℃. The intensities of cube texture differ from each other. Uniform equiaxial crystallites are formed in all the tapes and the size of Cu0.85Ni0.15 is larger than that of Cu0.70Ni0.30 and pure Ni. Annealing twin is formed in Cu0.85Ni0.15 and Cu0.70Ni0.30.
杨坚1，刘慧舟1，史锴1，袁冠森1
(1.Superconductivity Research Center, General Research Institute for Nonferrous Metal, Beijing 100088, China;
2.Applied Superconducting Research Center, Tsinghua University, Beijing 100084, China)
Abstract:The cube textured pure Ni and non-magnetic Cu-Ni tapes were obtained by rolling and recrystallization, and these tapes are suitable as substrates of the second generation high temperature superconducting tape. The texture of tapes was studied using Orientation Distribution Function (ODF) and φ-scans. The results indicate that sharp cube texture of Cu0.70Ni0.30 and pure Ni was formed at 1000 ℃ and that of Cu0.85Ni0.15 was formed at 900 ℃. The intensities of cube texture differ from each other. Uniform equiaxial crystallites are formed in all the tapes and the size of Cu0.85Ni0.15 is larger than that of Cu0.70Ni0.30 and pure Ni. Annealing twin is formed in Cu0.85Ni0.15 and Cu0.70Ni0.30.
Key words:metal materials; high temperature superconductor; cube texture; substrate; twin; rare earths;
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