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Superconducting Properties of V-Ti Alloys.
- Source :
- IEEE Transactions on Applied Superconductivity; Jun2007 Part 3 of 3, Vol. 17 Issue 2, p2542-2545, 4p, 1 Diagram, 6 Graphs
- Publication Year :
- 2007
-
Abstract
- The effects of α-Ti depositions, caused with the heat treatments at 300–5000°C, were studied for various V-Ti alloys through measurements of T<subscript>c</subscript>, I<subscript>c</subscript>, and X-ray diffraction patterns. I<subscript>c</subscript> increased with the α-Ti depositions for the V-Ti alloys with various Ti contents. The α-Ti depositions are very effective pinning centers in V-Ti alloys, being similar to those in Nb-Ti alloys. The maximum T<subscript>c</subscript> of 8.2 K was obtained for the V-40at%Ti alloy annealed at 500°C for 2 hr, while the maximum B<subscript>irr</subscript> (4.2 K) of 8.5 T was obtained for the V-(50–60) at%Ti alloys. J<subscript>c</subscript> (4.2 K, and 6.5 T) of about 170 A/mm<superscript>2</superscript> was obtained for the V-45at%Ti alloy annealed at 500°C for 4 hr. We also fabricated the V-Ti alloy multifilamentary wires in order to stabilize the alloy superconductors. The final cold-drawing after heat treatment at 400–450°C is effective on the improvements of T<subscript>c</subscript>, B<subscript>irr</subscript>, and J<subscript>c</subscript> of the multifilamentary V-(40–45)at%Ti alloy wires. J<subscript>c</subscript>(4.2 K, 6.5 T) of 200 A/mm<superscript>2</superscript> was obtained for the multifilamentary wire. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10518223
- Volume :
- 17
- Issue :
- 2
- Database :
- Complementary Index
- Journal :
- IEEE Transactions on Applied Superconductivity
- Publication Type :
- Academic Journal
- Accession number :
- 26294262
- Full Text :
- https://doi.org/10.1109/TASC.2007.899595