采用反应溅射法制备涂层导体用CeO2过渡层,重点对不同水分压下制备的CeO2种子层,以及YBCO超导层沉积过程中CeO2帽子层的稳定性进行了分析.采用X射线分析相组成变化以及晶体取向,通过扫描电镜观察表面形貌.结果表明,水分压对CeO2生长影响较大,水分压太小会导致缺氧相CeO2-x(0＜x＜0.5)生成.虽然后续富氧退火处理能转变成CeO2,但由于体积变化会萌生裂纹,其薄膜完整性受到破坏.另外,高温的YBCO生长工艺亦会引起CeO2帽子层与YBCO反应生成BaCeO3,对后续的YBCO晶体取向和超导性能产生不利影响.
参考文献
| [1] | Shiohara Y;Yoshizumi M;Izumi T;Yamada Y .Present status and future prospect of coated conductor development and its application in Japan[J].Superconductor Science & Technology,2008(3):34002-1-34002-7-0. |
| [2] | Shiohara, Y.;Yoshizumi, M.;Takagi, Y.;Izumi, T..Future prospects of high T_c superconductors-coated conductors and their applications[J].Physica, C. Superconductivity and its applications,2013:1-5. |
| [3] | Dimos D;Chaudhari P;Mannhart J;Legoues F K .Orientation dependence of grain boundary critical currents in YBa2Cu3O7-α bicrystals[J].Physical Review Letters,1988,61:219. |
| [4] | 古宏伟,杨坚,刘慧舟,屈飞,张华.YBa2Cu3O7-x涂层导体的研究进展[J].中国稀土学报,2006(03):257-268. |
| [5] | He Q;Christen D K;Budai J D;Specth E D Lee D F Goyal A Norton D P Paranthaman M List F A Kroeger D M .Deposition of biaxially-oriented metal and oxide buffer-layer films on textured Ni tapes:new substrates for high-current,high-temperature superconductors[J].Phys C,1997,275:155. |
| [6] | Liu L F;Li Y J;Zhao Z C;Liu H R .Epitaxial growth of YSZ buffer layer for YBa2Cu3O7-δ coated conductor by reel-to-reel pulsed laser deposition[J].Phys C,2010,257(04):1257. |
| [7] | Paranthaman M;Sathyamurthy S;Li X P;Specht E D Wee S H Cantoni C Goyal A Rupich M W .Modified lanthanum zirconium oxide buffer layers for lowcost,high performance YBCO coated conductors[J].Phys C,2010,470(5-6):352. |
| [8] | Arda L;Ataoglu S;Sezer S;Abdulaliyev Z .Residual stress analysis of multi-layered buffer layers on Ni substrate for YBCO coated conductor[J].Surface & Coatings Technology,2007(3):439-446. |
| [9] | 陈丕恒,李嵘,李炬,罗丽珠,蒋春丽,刘婷婷.大气环境中铈氧物组成研究[J].中国稀土学报,2009(01):128-131. |
| [10] | Zhou QG;Bai XD;Xue XY;Ling YH;Chen XW;Xu J;Wang DR .The oxidation behavior of Ce-implanted ZrN coating[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2004(1/4):236-240. |
| [11] | Zhang, H.;Yang, J.;Liu, H.;Wang, S. .Meter-long CeO_2/YSZ/Y_2O_3 buffer layers for YBCO coated conductors using DC reactive sputtering[J].Physica, C. Superconductivity and its applications,2010(22):1998-2001. |
| [12] | 张华,杨坚,刘慧舟,冯校亮,王书明.脉冲激光法制备涂层导体YBCO超导层的研究[J].功能材料,2010(03):428-431. |
| [13] | Mahmood, A;Park, SD;Jun, BH;Kim, KB;Sung, TH;Lee, SH;Kim, CJ .Effect of BaCeO3 addition on the microstructure and current density of melt-processed Y1.5Ba2Cu3Ox superconductors[J].Physica, C. Superconductivity and its applications,2008(15/20):1355-1358. |
| [14] | 张明,付名利,吴军良,黄碧纯,梁红,叶代启.MnOx-CeO2上表面氧性质及其催化碳烟燃烧性能[J].中国稀土学报,2011(03):303-309. |
| [15] | 吕昭,刘敏,叶帅,吴紫平,徐燕,索红莉.MOD法YBCO超导薄膜制备中BaCeO3的形成[J].人工晶体学报,2010(06):1555-1558. |
| [16] | Bals S.;Van Tendeloo G.;Rijnders G.;Blank DHA.;Leca V.;Salluzzo M. .Optimisation of superconducting thin films by TEM[J].Physica, C. Superconductivity and its applications,2002(Pt.2):711-714. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%