中国科学院电工研究所应用超导重点实验室
400-6699-117转1000
超导磁体及强磁场应用研究组
组长：王秋良研究员
实验室从二十世纪七十年代开始应用超导科学技术的研究，已经成为我国在应用超导领域的主要代表之一和国际上有影响力的研究机构。该研究组重点方向主要包括：复杂位型和特殊冷却方式的极高磁场应用超导磁体科学技术；超导磁体工艺、机械特性、失超保护、低温工程、低温传质传热；工程电磁场分析及大规模的计算软件、磁体结构优化；特种超导电工装备技术（包括空间磁体科学技术、加速器磁体技术、医学介入治疗磁体技术和超导储能磁体技术）；超导强磁场在磁分离、生物效应、材料处理等方面的应用研究。
超导电力科学技术研究发展中心
组长：戴少涛 研究员
超导电力科学技术是利用超导体的零电阻特性和状态转变特性发展起来的一门新兴交叉学科和战略性高新技术，是解决常规电力系统固有缺陷的有效途径，它的广泛应用必将带来传统电力工业的重大革新。实验室开展超导电力科学技术的应用基础、关键技术及其应用研究，着重解决新型和功能集成超导电力装置原理创新、超导电力装置关键技术和系统集成技术、超导电力装置与电力系统匹配协调运行技术以及含超导电力装置的混合电力系统基本理论和科学问题。目前，该方向的研究重点主要包括超导输变电技术、超导限流技术、超导储能技术、超导限流－储能技术以及基于高温超导磁体的新型应用超导技术等。
超导材料及强磁场科学研究组
组长：马衍伟 研究员
可用于超级电容器 新型锰氧化物薄膜的 强磁场合成Fe2O3磁 110米长铁铜复合 纳米C掺杂MgB2的MnO2纳米球 磁场热处理研究 性纳米管 MgB2超导线 超导线性能
自2004年2月以来，在国家基金委、中科院及科技部等的共同支持下，该研究组在超级电容器纳米关键材料探索及其制备技术、新型超导材料制备技术以及强磁场下新材料合成方面做出了有特色的工作，建立了完备的新材料制备平台和国内一流的强磁场极端条件下新材料合成研究的设备。迄今已发表40多篇SCI文章，其中一篇入选2007年 “第一届中国百篇最具影响优秀国际学术论文”，申请国际发明专利2项、国家发明专利20多项，已获授权3项。
研究组现有研究人员5名，博士后研究人员1名，在读硕士/博士研究生11名。目前承担的主要科研项目有：国家“863”计划、国家“973”、国家自然科学基金、北京市科委、中法、中日及中澳合作项目等。和国外相关的著名大学和研究所建立了紧密合作关系，如日本东北大学、日本国立材料研究所(NIMS)、法国Grenoble高场实验室以及澳大利亚Wollongong大学等。
目前主要研究方向有：
1）纳米能源材料与新能源器件，重点是基于金属氧化物、碳纳米管、石墨烯等新型超级电容器纳米电极材料的合成及性能研究；
2）新型超导材料的探索及制备技术；
3）强磁场下新型功能材料合成研究。
近年来主要工作如下：
1、超级电容器纳米电极材料的制备及性能研究
近几年来，所在课题组在超级电容器关键电极材料探索及其制备技术方面开展了许多有价值的工作，如1）采用高价离子水热矿化法制备出多种二氧化锰空心或实心纳米球型结构，并系统研究了其作为新型超级电容器电极材料的电化学性能，从而为纳米储能材料的制备提供了一条简单、有效而且可调的新方法，相关工作发表在美国化学会主办的杂志《Crystal Growth & Design》 9 (2009) 528上。2）采用剥离重组法制备出聚吡咯插层二氧化锰纳米复合材料，其导电率提高了4～5个数量级，电化学性能也得到了明显的改善，相关工作发表美国电化学会主办的杂志《Electrochemical and Solid-State Letters》12 (2009) A95上。3）最近，采用化学还原法成功制备出高稳定性有机溶剂分散的石墨烯材料，同时采用电泳沉积法获得了高导电性的石墨烯薄膜，为其在新型薄膜超级电容器领域的应用奠定了坚实基础，该工作即将发表在英国皇家化学会主办的杂志《Chemical Communications》上。
2、新型铁基超导线材制备研究
2008年4月，采用粉末装管方法，我们研制出世界上第一根新型铁基超导La(O1-xFx)FeAs线材。在此基础上，通过优化工艺条件，制备出了转变温度高达52 K 的Sm(O1-xFx)FeAs线材，其上临界场（0K）超过120 T，显示出该材料在高场磁体中的应用潜力。上述工作发表在国际超导领域的主流杂志《Supercond. Sci. Technol.》上，被编辑选作《超导科技》杂志的封面文章，同时也被评选为2008年的“亮点文章”之一。另外，我们还发现了两种新型铁基超导体：Eu1-xNaxFe2As2（35 K）和SmFe1-xCoxAsO（15K），受到了国际同行的关注。
3、MgB2线带材制备技术
课题组在MgB2的纳米掺杂、成材新工艺和磁通钉扎机制等研究方面取得了多项研究成果，如在国际上首次采用纳米碳掺杂法制备出当时世界上临界传输电流性能最高的MgB2线带材，该项工作获得2007年 “第一届中国百篇最具影响优秀国际学术论文”奖；首先采用有机酸及其衍生物对MgB2线带材进行掺杂，研制出了多种具有国际先进水平的高性能MgB2线带材。2007年电工所已能制备百米量级的高性能MgB2线材。
4、强磁场下新材料合成
利用实验室的强磁体设备优势，首次将强磁场热处理技术应用于REBCO 和MgB2超导体制备过程，改进了上述材料的超导性能。利用强磁场成功制备出g-Fe2O3磁性纳米管，研究了这些纳米结构的形成机制。在高温强磁场下发现了新型钙YNixMn1-xO3薄膜晶粒快速长大行为，制备出性能优异的磁性材料。在Chem. Mater.、Appl. Phys. Lett.等国际一流期刊上发表多篇文章，引起国际同行的关注。
Paper list
2008
1. Peng Yu, Xiong Zhang, Dongliang Wang, Lei Wang, and Yanwei Ma, “Shape-Controlled Synthesis of 3D Hierarchical MnO2 Nanostructures for Electrochemical Supercapacitors”,Cryst. Growth Des., 9 (2009) 528.
2. Yanpeng Qi, Zhaoshun Gao, Lei Wang, Dongliang Wang, Xianping Zhang, Yanwei Ma, “Superconductivity at 34.7 K in the iron arsenide Eu0.7Na0.3Fe2As2”,New J. Phys., 10 (2008) 123003.
3. Zijie Yan, Yanwei Ma, Dongliang Wang, Junhong Wang, Zhaoshun Gao, Lei Wang, Peng Yu, and Tao Song, “Impact of annealing on morphology and ferromagnetism of ZnO nanorods”, Appl. Phys. Lett. 92 (2008) 081911.
4. Zhaoshun Gao, Yanwei Ma, Xianping Zhang, Dongliang Wang, Huan Yang, Haihu Wen, K. Watanabe, “Influence of sintering temperature on the superconducting properties of Zn stearate doped MgB2 tapes”, Supercond. Sci. Technol., 21 (2008) 015016
5. Xianping Zhang, Dongliang Wang, Zhaoshun Gao, Lei Wang, Yanwei Ma, Zhiping Qi and Kazuo Watanabe, “The doping effect of activated carbon on the superconducting properties of MgB2 tapes”, Supercond. Sci. Technol., 21 (2008) 075008
6. Zhaoshun Gao, Yanwei Ma, Xianping Zhang, Dongliang Wang, Junhong Wang, S Awaji, K. Watanabe, Boyang Liu, “Hollow carbon spheres as an efficient dopant for enhancing the critical current density of MgB2-based tapes”, Supercond. Sci. Technol., 21 (2008) 105020
7. Zhaoshun Gao, Lei Wang, Yanpeng Qi, Dongliang Wang, Xianping Zhang, Yanwei Ma, “Preparation of LaFeAsO0.9F0.1 wires by the powder-in-tube method”, Supercond. Sci. Technol., 21 (2008) 105024
8. Zhaoshun Gao, Lei Wang, Yanpeng Qi, Dongliang Wang, Xianping Zhang, Yanwei Ma, Huan Yang, Haihu Wen, “Superconducting properties of granular SmFeAsO1-xFx wires with Tc = 52 K prepared by the powder-in-tube method”, Supercond. Sci. Technol. 21 (2008) 112001
9. Yanpeng Qi, Zhaoshun Gao, Lei Wang, Dongliang Wang, Xianping Zhang, Yanwei Ma, “Superconductivity in Co-doped SmFeAsO”, Supercond. Sci. Technol. 21 (2008) 115016
10.Li XH, Ye LY, Jin MJ, Du XJ, Gao ZS, Zhang ZC, Kong LQ, Yang XL, Xiao LY, Ma YW, “High critical current joint of MgB2 tapes using Mg and B powder mixture as flux”, Supercond. Sci. Technol. 21 (2008) 025017
11.Badica P, Aldica G, Craciunescu T, Tiseanu I, Ma Y, Togano K, “Microstructure of MgB2 samples observed by x-ray microtomography”, Supercond. Sci. Technol. 21 (2008) 115017
12.Xianping Zhang, Yanwei Ma, Zhaoshun Gao, Dongliang Wang, Lei Wang, Wei Liu, and Chunru Wang,“Strongly enhanced current-carrying performance in MgB2 tape conductors by C60 doping”, J. Appl. Phys., 103 (2008) 103915
13.Yu Zhengguang, Yang Bangchao,“Morphological investigation on cobalt oxide powder prepared by wet chemical method”, Mater. Lett. 62 (2008) 211
14.Xianping Zhang, Yanwei Ma, Dongliang Wang, Zhaoshun Gao, Lei Wang and K. Watanabe, “Effect of fabrication process on the superconducting properties of MgB2 tapes”, PHYSICA C,468 (2008) 1809-1812
15.Zijie Yan, Yanwei Ma, Dongliang Wang, Junhong Wang, Zhaoshun Gao, and Tao Song, “Surfactant-Free Fabrication of ZnO Spheres and Pseudospherical Structures”, J. Phys. Chem. C, 112 (2008) 9219
16.Xianping Zhang, Yanwei Ma, Zhaoshun Gao, Dongliang wang, Lei Wang,“Comparative study of different chemical doping effect on the Jc-B properties of MgB2 tapes”, Journal of Physics: Conference Series, 97 (2008) 012118
17.Lei Wang, Zhaoshun Gao, Yanpeng Qi, Xianping Zhang, Dongliang Wang and Yanwei Ma, “Structural and critical current properties in polycrystalline SmFeAsO1−xFx”,
Supercond. Sci. Technol. 22 (2009) 015019
18.Junhong Wang, Yanwei Ma, Dongliang Wang, Zhaoshun Gao, Yigang Zhou, Tao Song, “Templating synthesis of waxberried hematite hollow spheres”, Mater. Lett. 63 (2009) 209
2007
1. Junhong Wang, Yanwei Ma, K. Watanabe, “Magnetic-field-induced synthesis of magnetic γ-Fe2O3 nanotubes”, Chem. Mater. 20 (2008) 20-22.
2. Zhaoshun Gao, Yanwei Ma, Xianping Zhang, Dongliang Wang, Huan Yang, Haihu Wen, K. Watanabe, “Influence of sintering temperature on the superconducting properties of Zn stearate doped MgB2 tapes”, Supercond. Sci. Technol. 21 (2008) 015016.
3. Zhaoshun Gao, Yanwei Ma, Xianping Zhang, Dongliang Wang, Haihu Wen, K. Watanabe, “Influence of oxygen contents of carbohydrate dopants on connectivity and critical current density in MgB2 tapes”, Appl. Phys. Lett. 91 (2007) 162504.
4. Zhengguang Yu, Yanwei Ma, Dongliang Wang, Xianping Zhang, Zhaoshun, Gao, “Fabrication of a 19-filament Fe/Cu clad MgB2 wire via in situ powder-in-tube method”, Chinese Science Bulletin 52 (2007) 2621-2625.
5. Xianping Zhang, Yanwei Ma, Zhaoshun Gao, Dongliang Wang, Zhengguang Yu, K. Watanabe, Jiandong Guo, “Fabrication and superconducting properties of nano-SiC doped MgB2 tapes”, Chinese Science Bulletin 52 (2007) 2477-2480.
6. 禹争光，马衍伟，王栋樑，高召顺，张现平，K. Watanabe, 黄伟文, “高性能MgB2长线材制备及性能表征”, 物理学报, 56 (2007) 6680-6684.
7. Yanwei Ma, Zhaoshun Gao, Xianping Zhang, Dongliang Wang, Zhengguang Yu, K. Watanabe, Haihu Wen, and E. Mossang, “Enhanced high-field performance in MgB2/Fe tapes using inexpensive stearic acid additives”, J. Mater. Res. 22 (2007) 2987-2991.
8. Xianping Zhang, Yanwei Ma, Zhaoshun Gao, DongliangWang, Zhengguang Yu, and Lei Wang, “Systematic study on the microstructures, electrical and superconducting properties of carbon doped MgB2 tapes”, Supercond. Sci. Technol. 20 (2007) 1198-1204.
9. O. Pena, Yanwei Ma, M. Guilloux-Viry and C. Moure, “Magnetization reversal in Gd0.67Ca0.33MnO3: Comparison between epitaxial thin films and bulk”, Applied Surface Science 254 (2007) 339-342.
10. Xianping Zhang, Yanwei Ma, Zhaoshun Gao, Dongliang wang, Zhengguang Yu, Satoshi Awaji, Gen Nishijima, and Kazuo Watanabe，“Effect of Nano-C Doping on the Critical Current Density and Flux Pinning of MgB2 Tapes”，IEEE Trans. Appl. Supercond. 17 (2007) 2915.
11. Xianping Zhang, Yanwei Ma, Zhaoshun Gao, Dongliang wang, Zhengguang Yu, S. Awaji, and K. Watanabe，"Bi Addition Effect on Jc-B Performance of Powder-in-Tube Processed MgB2 Tapes”，IEEE Trans. Appl. Supercond. 17 (2007) 2925.
12. Aixia Xu, Yanwei Ma, Dongliang Wang, Zhaoshun Gao, Xianping Zhang, K. Watanabe, “Improved flux pinning and high critical current density in Fe-sheathed MgB2 wires and tapes by carbon nanotube doping”, Physica C 466 (2007) 190-195.
13. Zhaoshun Gao, Yanwei Ma, Xianping Zhang, Dongliang Wang, Zhengguang Yu, Huan Yang, Haihu Wen, E Mossang, “Enhancement of the critical current density and the irreversibility field in maleic anhydride doped MgB2 based tapes”, J. Appl. Phys. 102 (2007) 013914.
14. Dongliang Wang, Yanwei Ma, Zhengguang Yu, Zhaoshun Gao, Xianping Zhang, K. Watanabe, and E. Mossang, “Strong influence of precursor powder on the critical current density of Fe-sheathed MgB2 tapes”, Supercond. Sci. Technol. 20 (2007) 574-578.
15. Zhaoshun Gao, Yanwei Ma, Xianping Zhang, Dongliang Wang, Zhengguang Yu, K. Watanabe, Huan Yang, Haihu Wen, “Strongly enhanced critical current density in MgB2/Fe tapes by stearic acid and stearate doping”, Supercond. Sci. Technol. 20 (2007) 485-489.
16. Xianping Zhang, Yanwei Ma, Zhaoshun Gao, Dongliang Wang, Zhengguang Yu, G. Nishijima, K. Watanabe, Jiandong Guo, “Comparative Studies of Nanoscale SiC Whisker and Si/N/C Doped MgB2 Tapes”, Materials Science Forum, 546-549 (2007), 2041-2045.
17. Yanwei Ma, Xianping Zhang, S. Awaji, Zhaoshun Gao, Dongliang Wang, G. Nishijima, K. Watanabe, “Large irreversibility field in nanoscale C-doped MgB2/Fe tape conductors”, Supercond. Sci. Technol. 20 (2007) L5-L8.
18. Zhaoshun Gao, Xianping Zhang, Dongliang Wang, Xi Liu, Xiaohang Li, Yanwei Ma, E Mossang, “Effects of NbC doping on the critical current density of MgB2 tapes”, Supercond. Sci. Technol. 20 (2007) 57-61.
19. Xiaohang Li, Xiaoji Du, Ming Qiu, Yanwei Ma, Liye Xiao, “Design and experimental demonstration of an MgB2 based 1.5 T MRI test magnet”, Physica C 463 (2007) 1338-1341.
2006
1. Yanwei Ma, Aixia Xu, Xiaohang Li, Xianping Zhang, M. Guilloux-Viry, O. Peña, S. Awaji, K. Watanabe, “Improved properties of epitaxial YNixMn1-xO3 films by annealing under high magnetic fields”, Appl. Phys. Lett. 89 (2006) 152505.Download
2. Xianping Zhang, Zhaoshun Gao, Dongliang Wang, Zhengguang Yu, Yanwei Ma, S. Awaji, K. Watanabe, “Improved critical current densities in MgB2 tapes with ZrB2 doping”, Appl. Phys. Lett. 89 (2006) 132510.Download
3. Yanwei Ma, Liye Xiao, Luguang Yan, “Application of high magnetic fields in advanced materials processing”, Chinese Science Bulletin, 2006, Vol.51, No. 24, pp.2944-2950.Download
4. Yanwei Ma, Liangzhen Lin, Liye Xiao, “Recent advances of HTS power application research at IEE”, Journal of Physics: Conference Series 43 (2006) 772-775.Download
5. Xianping Zhang, Yanwei Ma, Aixia Xu, Yulei Jiao, Ling Xiao, S. Awaji, K. Watanabe, Huan Yang, Haihu Wen, “Effect of nano-C doping on the in-situ processed MgB2 tapes”, Journal of Physics: Conference Series 43 (2006) 99-102.Download
6. Yanwei Ma, “Doping effects of ZrC and ZrB2 in the powder-in-tube processed MgB2 tapes”, Chinese Science Bulletin 51 (2006) 2669-2672.Download
7. Aixia Xu , Yanwei Ma, Xianping Zhang, Xiaohang Li, G. Nishijima, S. Awaji, K. Watanabe, “Superconducting properties of MgB2 bulks processed in high magnetic fields”, Physica C 445–448 (2006) 811–813.Download
8. Xianping Zhang, Yanwei Ma, Zhaoshun Gao, Zhengguang Yu, G. Nishijima, K. Watanabe, “Enhancement of JC-B Properties in MoSi2 doped MgB2 tapes”, Supercond. Sci. Technol. 19 (2006) 699–702.Download
9. Yanwei Ma, M. Guilloux-Viry, P. Barahona, O. Peña, C. Moure, J.Ghilane, P. Hapiot, “YNixMn1-xO3 thin films by pulsed-laser deposition: Structure and magnetic properties”, Thin Solid Films 510 (2006) 275-279.Download
10. Yanwei Ma, Aixia Xu, Xiaohang Li, Xianping Zhang, Satoshi Awaji and Kazuo Watanabe, “Enhanced critical current density of MgB2 superconductor synthesized in high magnetic fields”, Jpn. J. Appl. Phys. 45 (2006) L493-496.Download
11. Xianping Zhang, Yanwei Ma, Zhaoshun Gao, Zhengguang Yu, G. Nishijima, K.Watanabe, "Effect of different nanoscale materials doping on critical current properties of in-situ processed MgB2 tapes", Supercond. Sci. Technol. 19 (2006) 479-483.Download
12. Yanwei Ma, Xianping Zhang, G. Nishijima, K. Watanabe, S. Awaji, Xuedong Bai, “Significantly enhanced critical current densities in MgB2 tapes made by a scaleable nanocarbon addition route”, Appl. Phys. Lett. 88 (2006) 072502.Download
13. Yanwei Ma, Xianping Zhang, Aixia Xu, Xiaohang Li, Liye Xiao, G. Nishijima, S. Awaji, K. Watanabe, Yulei Jiao, Ling Xiao, Xuedong Bai, Kehui Wu and Haihu Wen, “Effect of ZrSi2 and SiC doping on microstructure and Jc-B properties of PIT processed MgB2 tapes”, Supercond. Sci. Technol. 19 (2006) 133-137.Download
14. 马衍伟，高召顺，“ZrC和ZrB2掺杂对PIT法制备MgB2带材的影响”，科学通报，vol.51, No.16, 2006, pp.1958-1960.Download
