Title :
Superconducting monolithic Nb3Sn magnetic system with ceramic insulation, technology of manufacturing-test results
Author :
Lelekhov, S.A. ; Novikov, S.I. ; Zyravlev, A.N. ; Kyznetsov, G.K. ; Tanevcki, V.V. ; Tcachenco, A.A.
Author_Institution :
Kurchatov Inst. of Atomic Energy, Moscow, Russia
fDate :
1/1/1992 12:00:00 AM
Abstract :
Mechanical and electrophysical property studies of plasma-sprayed ceramic insulation coverings at low temperatures and under γ-n irradiation were performed. The results of the studies confirm the possibility of using such coverings as electrical insulation and as a monolithic material for the superconducting electromagnetic system of a fusion reactor. The technology of manufacturing a monolithic superconducting magnetic system based on intermetallic compounds by the technique of winding-annealing, with the use of plasma-sprayed ceramic coverings, was developed. A frame-free superconducting solenoid based on niobium-tin, 130 mm in inner diameter and 200 mm in outer diameter, and including light ordinary pancakes wound with unannealed flattened wire conductor of 4.7-1.2 mm in diameter, was manufactured and tested. The results of testing a ceramic solenoid in the external field of a niobium-titanium magnet are given
Keywords :
annealing; ceramics; fusion reactor materials; fusion reactor theory and design; gamma-ray effects; insulating coatings; neutron effects; niobium alloys; plasma arc sprayed coatings; superconducting magnets; tin alloys; ceramic insulation; ceramic solenoid; frame-free superconducting solenoid; fusion reactor; gamma irradiation; light ordinary pancakes; neutron irradiation; plasma-sprayed ceramic coverings; superconducting monolithic Nb3Sn magnetic system; winding-annealing; Ceramics; Manufacturing; Niobium; Plasma materials processing; Plasma properties; Plasma temperature; Solenoids; Superconducting filaments and wires; Superconducting magnets; Superconducting materials;
Journal_Title :
Magnetics, IEEE Transactions on
