错误:搜索内容不能为空,请输入英文关键词
错误:关键词超出字数限制,请精简
高级检索

Tuning the Physical Properties of V-Ti-Ce Alloy Superconductors Through Successive Cold-Working and Annealing at 650 °C

  • Asi Khandelwal,
  • Nida Mirza,
  • L. S. Sharath Chandra,
  • Rashmi Singh,
  • Archna Sagdeo,
  • M. K. Chattopadhyay

摘要

V- Ti alloys are promising alternatives to Nb for the construction of superconducting solenoids that produce high magnetic fields. The critical current density ( \(J_C\) J C ), which quantifies the capacity of a superconductor to carry large dissipationless current, increases in the V-Ti alloys with the addition of Ce. Here, the effects of successive cold working and annealing on the electrical resistivity, \(J_C\) J C , and microstructure of the V \(_{0.59}\) 0.59 Ti \(_{0.40}\) 0.40 Ce \(_{0.01}\) 0.01 alloy are studied. The \(J_C\) J C is the maximum after the second cold rolling. Annealing at 650 \(^{\circ }\) C is found to nucleate and grow the \(\alpha \) α -phase which is detrimental to \(J_C\) J C , whereas the precipitation of the \(\alpha '\) α -phase is found to improve the \(J_C\) J C .