单畴GdBCO超导块材制备方法的改进及超导特性研究

李国政; 杨万民

doi:10.7498/aps.60.047401

摘要

通过改变液相源成分和先驱块的装配方式对顶部籽晶熔渗生长方法(TSIG)进行改进,并用新方法成功制备了单畴Gd-Ba-Cu-O(GdBCO)超导块材.对样品形貌和微观结构的研究发现,应用新方法制备的样品呈现出良好的织构度,其内俘获的Gd2BaCuO5(Gd-211)内含物分布均匀且粒度较小.超导性能的测试表明,样品具有较高的超导转变温度和自场临界电流密度,表现出较大的磁悬浮力.此外,应用新方法可以简化实验步骤,缩短制备周期,提高实验的稳定性,从而降低了实验难度,为大尺寸单畴块材的批量化制备打下了基础.

关键词:

GdBCO /
熔渗生长 /
液相源 /
装配方式

Abstract

Top seeded infiltration and growth method (TSIG) is improved by adopting a new liquid source and novel configuration. And single-domain Gd-Ba-Cu-O (GdBCO) bulk superconductors are successfully prepared using the improved method. Experimental observations on the morphology and the microstructure show that the samples exhibit good texture and homogeneous distribution of fine Gd2BaCuO5 (Gd-211) inclusions. Superconductive measurements reveal that the sample exhibits high superconducting transition temperature, self-field critical current density, and strong levitation force. In addition, the improved method can be used to simplify the process flow, shorten the experimental cycle, and hance the stability of the process, thus reducing the experimental difficulties. The results lay a good foundation for the batch production of large single domain bulks.

Keywords:

作者及机构信息

1.
陕西师范大学物理学与信息技术学院,西安 710062

基金项目: 国家自然科学基金(批准号:50872079),国家高技术研究发展计划(批准号:2007AA03Z241),中央高校基本科研业务费专项资金(批准号:2010ZYGX021,GK200901017)资助的课题.

Authors and contacts

1.
College of Physics and Information Technology, Shaanxi Normal University, Xi'an 710062, China

参考文献

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施引文献

[1]	Sha J J, Yao Z W, Yu J N, Yu G, Luo J H, Wen H H, Yang W L, Li S L 2000 Acta Phys. Sin. 49 1356 (in Chinese) [沙建军、姚仲文、郁金南、郁刚、罗金汉、闻海虎、杨万里、李世亮 2000 49 1356]
[2]	Feng Y, Zhou L, Yang W M, Zhang C P, Wang J R, Yu Z M, Wu X Z 2000 Acta Phys. Sin. 49 146 (in Chinese) [冯勇、周廉、杨万民、张翠萍、汪京荣、于泽铭、吴晓祖 2000 49 146]
[3]	Cai Y Q, Yao X, Li G 2006 Acta Phys. Sin. 55 844 (in Chinese) [蔡衍卿、姚忻、李刚 2006 55 844]
[4]	Zhang Y L, Yao X, Zhang H, Jin Y P 2005 Acta Phys. Sin. 54 3380 (in Chinese) [张玉龙、姚忻、张宏、金燕苹 2005 54 3380]
[5]	Xu C Y, Shi L, Zuo J, Pang W H, Zhang Y L 1996 Acta Phys. Sin. 45 893 (in Chinese) [许存义、石磊、左健、庞文华、张裕恒 1996 45 893]
[6]	Zhou Z J, Zhou Z W, Zhou L Y, Lin L, Li X G, Feng Q R 2004 Chin. Phys. 13 1957
[7]	Ding F Z, Lü X D, Gu H W, Li T, Cao J L 2009 Chin. Phys. B 18 1631
[8]	Shen C X, Shen X L, Lu W, Dong X L, Li Z C, Xiong J W, Zhou F 2008 Chin. Phys. B 17 1425
[9]	Shabna R, Sarun P M, Vinu S, Syamaprasad U 2009 Chin. Phys. B 18 4000
[10]	Babu N H, Lo W, Cardwell D A, Campbell A M 1999 Appl. Phys. Lett. 75 2981
[11]	Muralidhar M, Sakai N, Chikumoto N, Jirsa M, Machi T, Nishiyama M, Wu Y, Murakami M 2002 Phys. Rev. Lett. 89 237001
[12]	Shen X L, Li Z C, Shen C X, Lu W, Dong X L, Zhou F, Zhao Z X 2009 Chin. Phys. B 18 2893
[13]	Gawalek W, Habisreuther T, Zeisberger M, Litzkendorf D, Surzhenko O, Kracunovska S, Prikhna T A, Oswald B, Kovalev L K, Canders W 2004 Supercond. Sci. Technol. 17 1185
[14]	Werfel F N, Floegel-Delor U, Rothfeld R, Goebel B, Wippich D, Riedel T 2005 Supercond. Sci. Technol. 18 S19
[15]	Oswald B, Best K J, Setzer M, Soll M, Gawalek W, Gutt A, Kovalev L, Krabbes G, Fisher L, Freyhardt H C 2005 Supercond. Sci. Technol. 18 S24
[16]	Dai J Q, Zhao Z X, Xiong J W 2003 Supercond. Sci. Technol. 16 815
[17]	Babu N H, Iida K, Shi Y, Cardwell D A 2005 Appl. Phys. Lett. 87 202506
[18]	Iida K, Babu N H, Shi Y, Cardwell D A 2005 Supercond. Sci. Technol. 18 1421
[19]	Iida K, Babu N H, Shi Y, Cardwell D A 2006 Supercond. Sci. Technol. 19 S478
[20]	Meslin S, Iida K, Babu N H, Cardwell D A, Noudem J G 2006 Supercond. Sci. Technol. 19 711
[21]	Noudem J G, Meslin S, Horvath D, Harnois C, Chateigner D, Ouladdiaf B, Eve S, Gomina M, Chaud X, Murakami M 2007 J. Am. Ceram. Soc. 90 2784
[22]	Li G Z, Yang W M 2010 Acta Phys. Sin. 59 5208 (in Chinese) [李国政、杨万民 2010 59 5208]
[23]	Varanasi C, Mcginn P J, Blackstead H A, Pullinga D B 1995 Appl. Phys. Lett. 67 1004
[24]	Feng Y, Zhou L, Wen J G, Koshizuka N, Sulpice A, Tholence J L, Vallier J C, Monceau P 1998 Physica C 297 75
[25]	Zheng H, Jiang M, Huang Y, Veal B W, Claus H 1998 Physica C 307 284
[26]	Nariki S, Sakai N, Murakami M, Hirabayashi I 2004 Physica C 412-414 557
[27]	Iida K, Babu N H, Withnell T D, Shi Y, Haindl S, Weber H W, Cardwell D A 2006 Physica C 445-448 277
[28]	Babu N H, Iida K, Shi Y, Cardwell D A 2006 Physica C 445-448 286
[29]	Li G Z, Yang W M, Tang Y L, Ma J 2010 Cryst. Res. Technol. 45 219
[30]	Murakami M, Sakai N, Higuchi T, Yoo S I 1996 Supercond. Sci. Technol. 9 1015
[31]	Chen S Y, Hsiao Y S, Chen C L, Yan D C, Chen I G, Wu M K 2008 Mater. Sci. Eng. B 151 31
[32]	Koblischka M R, Muralidhar M, Murakami M 1999 Mater. Sci. Eng. B 65 58
[33]	Koblischka M R, van Dalen A J J, Higuchi T, Yoo S I, Murakami M 1998 Phys. Rev. B 58 2863
[34]	Hinai H, Nariki S, Seo S J, Sakai N, Murakami M, Otsuka M 2000 Supercond. Sci. Technol. 13 676

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