金属离子在YBCO中的扩散及对其结构和超导性能的影响.pptx

金属离子在YBCO中的扩散及对其结构和超导性能的影响;2;一.背景介绍;一.背景介绍;2. YBa2Cu3O7-δ晶体结构;3.合成掺杂对YBa2Cu3O7-δ晶超导性的影响;4.YBa2Cu3O7-δ 的扩散掺杂;二.金属在YBa2Cu3O7-δ中的扩散;2.阳离子的取代位置;3.扩散系数的测定;3.扩散系数的测定;三.金属扩散对YBa2Cu3O7-δ的结构及超导性能的影响;三.金属扩散对YBa2Cu3O7-δ的结构及超导性能的影响;三.金属扩散对YBa2Cu3O7-δ的结构及超导性能的影响;三.金属扩散对YBa2Cu3O7-δ的结构及超导性能的影响;三.金属扩散对YBa2Cu3O7-δ的结构及超导性能的影响;3.YBa2Cu3O7-δ超导性能的变化—临界电流密度Jc;1. M. Z. Cieplak et al., Incorporation of gold intoYBa2Cu3O7: Structure andTcenhancement. Physical Review B 42, 6200-6208 (1990). 2. M. Dogruer, O. Gorur, F. Karaboga, G. Yildirim, C. Terzioglu, Zr diffusion coefficient and activation energy calculations based on EDXRF measurement and evaluation of mechanical characteristics of YBa2Cu3O7?x bulk superconducting ceramics diffused with Zr nanoparticles. Powder Technology 246, 553-560 (2013). 3. M. Dogruer, G. Yildirim, E. Yucel, C. Terzioglu, Role of diffusion-annealing temperature on the microstructural and superconducting properties of Cu-doped MgB2 superconductors. Journal of Materials Science: Materials in Electronics 23, 1965-1970 (2012). 4. O. G?rür, T. Kü?ük?mero?lu, C. Terzio?lu, A. Varilci, M. Altunba?, The effect of Ag diffusion on properties of YBa2Cu3O7?x thin films produced by electron beam deposition techniques. Physica C: Superconductivity 418, 35-42 (2005). 5. O. G?rür, C. Terzio?lu, A. Varilci, M. Altunba?, Investigation of some physical properties of silver diffusion-doped YBa2Cu3O7?x superconductors. Superconductor Science and Technology 18, 1233-1237 (2005). 6. S. B. Guner et al., Effect of zirconium diffusion on the microstructural and superconducting properties of YBa2Cu3O7?δ superconductors. Journal of Alloys and Compounds 540, 260-266 (2012). 7. K. ?ztürk, ?. ?elik, U. ?evik, E. Yanmaz, The effect of Gd diffusion-doped on structural and superconducting properties of YBa2Cu3O7?x superconductors. Journal of Alloys and Compounds 433, 46-52 (2007). 8. C. Terzioglu, H. Aydin, O. Ozturk, E. Bekiroglu, I. Belenli, The influence of Gd addition on microstructure and tran