The fabrication and testing of an MgB2 coil made by a wind and react method were studied. A 130m-long Fe/Cu-composite sheathed MgB2-superconducting round wire was made by using an in situ powder-in-tube method. Using a 58m-long wire, a small solenoid coil with 459 turns was fabricated. The IC of the coil was measured under different external fields and temperatures. Excellent correspondence of IC between the short sample and the coil was obtained at 4.2K and in external fields above 4T. This indicates that the 58m-long wire had a very homogeneous IC distribution. At 25K, this coil generated a maximum magnetic field of 1T (IC = 100A, overall-JC = 200A/mm2) in an external field of 0.5T. At 4.2K, this coil generated 1.9T (IC = 184A, overall JC = 366A/mm2) in the external field of 0.5T.

Fabrication and Transport Properties of an MgB2 Solenoid Coil. K.Tanaka, H.Kitaguchi, H.Kumakura, H.Yamada, M.Hirakawa, M.Okada: Superconductor Science and Technology, 2005, 18, 678-81