Effect of dynamic stress on commercial superconductors: a test facility
- 1 June 1977
- journal article
- research article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 48 (6) , 597-601
- https://doi.org/10.1063/1.1135092
Abstract
A test facility was built for the investigation of commercial superconducting wires subjected to dynamic mechanical load. The apparatus permits measurement of stress–strain curves while the sample is exposed to a transverse or longitudinal magnetic field and a transport current is applied. The variation of cooling conditions is possible with the sample placed in vacuum, helium gas, and liquid helium, respectively. With this apparatus the ’’training’’ behavior of superconducting magnets was simulated in short sample tests. Other results obtained are stress–strain curves of NbTi showing serrated yielding, and the temperature measurement of superconducting composite wires during deformation with a response time in the millisecond range.Keywords
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