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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