FIRST RESULTS OF STRAIN EFFECTS ON I-c OF Nb3Al CABLE IN CONDUIT FUSION SUPERCONDUCTORS

被引：39

作者：

Specking, W. ^{[1
]}

Kiesel, H. ^{[1
]}

Nakajima, H. ^{[1
]}

Ando, T. ^{[2
]}

Tsuji, H. ^{[2
]}

Yamada, Y. ^{[3
]}

Nagata, M. ^{[3
]}

机构：

[1] Kernforschungszentrum Karlsruhe, Inst Tech Phys, Postfach 3640, D-7500 Karlsruhe, Germany

[2] Japan Atom Energy Res Inst, Naka Fus Res Estab, Naka, Ibaraki 31101, Japan

[3] Sumitomo Elect Ind Ltd, Osaka Res Labs, Konohana Ku, Osaka 554, Japan

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 1993年 / 3卷 / 01期

关键词：

D O I：

10.1109/77.233651

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The effect of axial strain, epsilon(a), on the critical current, I-c, of Nb3Al "Cable in Conduit" (CIC) subconductors has been measured firstly at I-c <= 10 kA and a magnetic field of B = 12 T at KfK, Karlsruhe. Like comparable Nb3Sn CIC cables this conductor exhibits a maximum of I-c at epsilon(a) approximate to 0.7 %, but the degradation of I-c at epsilon(a) = 0 and B = 12 T being only 20% for Nb3Al in comparison to 50 % for the Nb3Sn cables. Furthermore, the I-c vs epsilon(a) characteristic behaves completely reversible under both loaded and unloaded conditions up to the measured strain of epsilon(a) = 1.7%. The Nb3Al CIC subconductor has been developed within the 10 kA/12 T class for fusion magnets at JEARI. A tripleted cable consisting of 36 strands was inserted into a circular stainless steel conduit with 30 % void fraction and then heat treated. JR processed Nb3Al wires were used for the basic strands.

引用

页码：1342 / 1345

页数：4

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