Speaker
Hyun Sung Kim
(The Ohio State University)
Description
Advancements in superconducting wire manufacturing has enabled the design and fabrication of superconducting coils for practical magnet applications. To apply superconducting wire for most commercial applications requiring many kilometers of wire, long-length characterization in coil form is important. This study discussed the transport properties of two different solenoid coil wound with long length of MgB2 and Nb3Sn strands by Hyper Tech. The MgB2 coil was wound on a solenoidal 101 OFE copper former with 18” ID using the react-and-wind method. The stainless steel former with 30” ID was used for Nb3Sn coil. The strands were insulated with single S-glass braid insulation for both coils. The total lengths of conductor used for MgB2 and Nb3Sn coils were ~330 m and ~1.5 km, respectively. Transport Ic measurements were performed at various taps along the coil lengths. Measurements were made at various temperatures by conduction cooling. Homogeneity of response along the coils was investigated and a comparison to the short sample results was made. Temperature gradient of coil was also monitored for transition region between current leads and coil.
Author
Hyun Sung Kim
(The Ohio State University)
Co-authors
Chris Kovacs
(The Ohio State University)
Edward Collings
(The Ohio State Unviersity)
Jinji Yue
(Hyper Tech Research Inc.)
Matthew Rindfleisch
(Hyper Tech Research Inc.)
Mike Sumption
(The Ohio State University)
Mike Tomsic
(Hyper Tech Research Inc.)
Xuan Peng
(Hyper Tech Research Inc.)
