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Tensile strain dependence of critical current of RHQ-Nb3Al wires
- Source :
- Cryogenics. 52:805-809
- Publication Year :
- 2012
- Publisher :
- Elsevier BV, 2012.
-
Abstract
- Nb 3 Al superconducting wires produced by rapid heating and quenching (RHQ) have been developed for high-field accelerator magnets. It is known that critical currents of A15 superconductors (e.g., Nb 3 Al and Nb 3 Sn) have a dependence on stress/strain. It is thus important to clarify the stress/strain behavior of the RHQ-Nb 3 Al wires for the development of high-field accelerator magnets. We recently started experimentally investigating the strain dependence of the critical current of the RHQ-Nb 3 Al wires with a Ta interfilament by measuring their critical currents under longitudinal tensile strains. To evaluate the effect of residual strain in Nb 3 Al filaments induced by thermal contraction of the materials in the wire, neutron diffraction measurements were performed at room temperature.
Details
- ISSN :
- 00112275
- Volume :
- 52
- Database :
- OpenAIRE
- Journal :
- Cryogenics
- Accession number :
- edsair.doi...........57edb32f3789bad2d598e85e84ff7b3d
- Full Text :
- https://doi.org/10.1016/j.cryogenics.2012.09.006