具有不同临界电流的Bi2223/Ag多芯超导带材的自场损耗和交流电流电压特性

低温物理学报 , 2000, 22(6): 454-461. doi: 10.3969/j.issn.1000-3258.2000.06.010

具有不同临界电流的Bi2223/Ag多芯超导带材的自场损耗和交流电流电压特性

胡立发 ^1, , 周廉 ^2, , 王金星 ^3, , 扬万民 ^4, , 李成山 ^5, , 张平祥 ^6,

1.东北大学理学院,沈阳,110006;西北有色金属研究院超导所,西安,710016

2.西北有色金属研究院超导所,西安,710016

3.东北大学理学院,沈阳,110006

4.东北大学理学院,沈阳,110006

5.东北大学理学院,沈阳,110006;西北有色金属研究院超导所,西安,710016

6.西北有色金属研究院超导所,西安,710016

SELF-FIELD LOSSES AND AC VOLTAGE-CURRENT CHARACTERISTICS IN MULTIFILAMENTARY Bi2223/Ag TAPES WITH DIFFERENT CRITICAL CURRENT

对具有不同临界电流的Bi2223/Ag多芯超导带材的交流电流电压特性进行了测量和评价.当传输电流的有效值Irms小于临界电流Ic时,交流电压的大小与传输电流的频率成正比;但Irms接近临界电流时,不同频率所对应的交流电压的大小之间的差别减小了, 所有的曲线都汇聚成一条曲线.传输电流的频率分别为40Hz,60Hz,80Hz ,200Hz及300Hz时,我们测量了交变传输电流在Bi2223/Ag带材中产生的自场损耗.结果表明当传输电流的频率较低时,实验结果与基于Bean模型的Norris方程预期的结果一致;另外, 实验结果表明存在一个电流I',它的值小于任何一个样品的临界电流, 本实验中I'的值是10安培.在传输相同大小的电流Irm且IrmsI'且样品不失超时,损耗与它的临界电流成反比.

AC voltage-current characteristics of multifilamentary Bi2223/Ag tapes with dif ferent critical current density are measured and evaluated. The value of ac volt age is proportional to the frequency of the transport current if Irms

参考文献

[1]	Takasuke Ageta .[J].Advances in Superconductivity,1997,2:1283-1288.
[2]	Masato Murakami;Kirsten Myers;Jeffrey Willis .[J].ISTEC Journal,1998,11(01):51-59.
[3]	Y Yang;T J Hughes;C Beduz;F.Darmann .[J].Physica C,1998,310:147-153.
[4]	M Daumling .[J].Superconductor Science and Technology,1998,11:590-593.
[5]	S Stavorev;B Dutoit .[J].Physica C,1998,310:86-89.
[6]	M Majoros;L Jansak;S Zannella et al.[J].Physica C,1998,310:6-11.
[7]	H Eckelmann;M Daumling;M Quilitz et al.[J].Physica C,1998,295:198-208.
[8]	Y B Huang;R Flukiger .[J].Physica C,1998,294:71-82.
[9]	C J Christopherson;G N Riley .[J].Applied Physics Letters,1995,66(17):2277-2279.
[10]	N Nibbio;B Dutoit;G Grasso .[J].Advances in Superconductivity,1997,2:751-754.
[11]	N Amemiya;S Murasawa;N Banno et al.[J].Physica C,1998,310:16-29.
[12]	A M Campbell .[J].IEEE Transactions on Applied Superconductivity,1995,5(02):682-687.
[13]	Jaakko Paasi;Markku Lahtinen .[J].Physica C,1998,310:57-61.
[14]	C S Li;P X Zhang;A K Wang.[J].Advances in Superconductivity,1997:755-758.
[15]	L F Hu;L Zhou;J X Wang.[J].Rare Metal Materials and Engineering
[16]	S Fleshler.ICEC16/ICMC proceedings[C].:1613-1616.
[17]	S Fleshler;L T Cronis;G E Conway et al.[J].Applied Physics Letters,1995,67(21):3189-3191.
[18]	M Ciszek;S P Ashworth;M P James et al.[J].Superconductor Science and Technology,1996,9:379-384.
[19]	W T Norris .[J].Journal of Physics D:Applied Physics,1970,3:489-507.
[20]	K -H Muller .[J].Physica C,1997,281:1-10.
[21]	Y Yang;T Hughes;Z Yi et al.ICEC 15 proceedings[J].Cryogenics,1997,34:789-792.
[22]	Y Kubota;H Okon;T Ogasawara .[J].Cryogenics,1986,26:654-659.
[23]	Z H Liu.THE AC LOSSES AND STABILITY OF SUPERCONDUCTING MAGNETS[M].北京:国防工业出版社,1992
[24]	T Hughes;Y Yang;C Beduz et al.[J].Physica C,1994,235-240:3423-3424.

上一张下一张

计量

下载量()
访问量()

作者相关

文章评分

您的评分：
1

0%
2

0%
3

0%
4

0%
5

0%

材料期刊网