使用电测量方法测量了用粉末套管(PIT)工艺制备的Cu-Ni包套MgB2单芯带的弹性模量E,其值与Cu及其合金的弹性模量为同一量级,还证实了在带中存在着压缩预应力.我们研究了该带在4.2K,0.5~4T磁场下弯曲成不同曲率时的Ic-B特性曲线,并且计算相应曲率时的最大应变和应力.弯曲实验显示该带材对应力较为敏感,必须改进工艺并实施机械强化.
参考文献
[1] | J Nagamatsu;N Nakagawa;Y Zenitani .[J].Journal of Akimitsu Nature,2001,410:63. |
[2] | D.C. Larbalestier;L.D. Cooley;M.O Rikel;A A Polyanskii, J Jiang, S Patnaik, X Y Cai, D M Feldmann, A Gurevich, A A Squitieri, M T Naus, C B Eom, E E Hellstrom, R J Cava, K A Regan, N Rogado, M A Hayward, T He, J S Slusky, P Khalifah, K Inumaru, M Haas .[J].Nature,2001,410:186. |
[3] | M Kambara;N HariBabu;E S Sadki;J R Cooper, H Minami, D A Cardwell, A M Campbell, I H Inoue .[J].Superconductor Science and Technology,2001(14):L5-L7. |
[4] | J R Thompson;M Paranthaman;D K Christen;K D Sorge, H J Kim, J G Ossandon .[J].Superconductor Science and Technology,2001(14):L17-L20. |
[5] | P.C. Canfield;D.K. Finnemore;S.L Bud′ko;J E Ostenson, G Lapertot, C E Cunningham, and C Petrovic .[J].Physical Review Letters,2001,86:2423. |
[6] | G Grasso;A Malagoli;C Ferdeghini;S Roncallo V Braccini,M R Climberle,and A S Siri .[J].Applied Physics Letters,2001(79):230. |
[7] | H L Suo;C Beneduce;M Dhalle;N Musolino, J Y Genoud, R Fluekiger .[J].Applied Physics Letters,2001(79):3116. |
[8] | S Soltanian;X L Wang;I Kusevic;E Babic,A H Li,H K Liu,E W Collings,and S X Dou .[J].PHYSICA C,2001,361:230. |
[9] | H. Kumakura;A. Matsumoto;H. Fujii;K. Togano .High transport critical current density obtained for powder-in-tube-processed MgB_(2) tapes and wires using stainless steel and Cu-Ni tubes[J].Applied physics letters,2001(15):2435-2437. |
[10] | 焦正宽;陈灼民;张其瑞;贾云发 .[J].低温物理学报,1980,2(02):280. |
[11] | H Kitaguchi;H Kumakura;K Togano .[J].PHYSICA C,2001,363:198. |
[12] | W. Goldacker;S. I. Schlachter;J Reiner .[Z].cond-mat/0211617 |
[13] | J K F Yau;N Savvides;C C Sorrell .[J].PHYSICA C,1996,266:223. |
[14] | B.T. Haken;A. Godeke;H.J Schuver;H.J. ten Kate .[J].IEEE Transactions on Magnetics,1996(32):2720. |
[15] | 冯庆荣,曹科,徐军,郭建栋,王昕,熊光成,高政祥,徐洪清,佘冬玲,蔡杉,李占一,董妍.750℃和850℃下MgB2纤维超导体的制备及性能研究[J].低温物理学报,2002(02):96-101. |
[16] | 王银顺,肖立业,林良真,戴少涛,舒立.银包套Bi2223多芯带材局部临界电流的变化对整个长样带材性能的影响[J].低温物理学报,2002(03):218-223. |
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