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Transverse stress effect on the critical current of jelly‐roll multifilamentary Nb3Al wires

 

作者: Dimitris Zeritis,   Toshinari Ando,   Yoshikazu Takahashi,   Masataka Nishi,   Hideo Nakajima,   Susumu Shimamoto,  

 

期刊: Applied Physics Letters  (AIP Available online 1990)
卷期: Volume 57, issue 5  

页码: 506-507

 

ISSN:0003-6951

 

年代: 1990

 

DOI:10.1063/1.104241

 

出版商: AIP

 

数据来源: AIP

 

摘要:

Experiments were conducted to determine the transverse stress sensitivity of the critical current (Ic) of jelly‐roll multifilamentary Nb3Al wires at 8 and 12 T. For comparison, similar experiments were conducted on bronze‐process (NbTi)3Sn wires. At 12 T and under a transverse compressive stress of 150 MPa−conditions expected in fusion magnets−theIcdegradation of the Nb3Al specimen was ∼20% vs ∼65% for the (NbTi)3Sn specimen. The intrinsic superiority of Nb3Al over (NbTi)3Sn with regard to transverse compressive stress is thus clear. There is optimism that Nb3Al will eventually become a useful superconductor for large‐scale, high‐field applications.

 

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