Title :
Fiber-reinforced-superconductors for a 15 T-class high-field pulsed magnet and their conceptual design
Author :
Arai, K. ; Tateishi, H. ; Umeda, M. ; Agatsuma, K.
Author_Institution :
Electrotech. Lab., Ibaraki, Japan
fDate :
3/1/1993 12:00:00 AM
Abstract :
The authors are developing a novel type of Nb/sub 3/Sn superconductor with high elastic modulus fibers for application to high field pulsed superconducting magnets, called the fiber-reinforced superconductor (FRS). They describe the conceptual design of a conductor for a pulsed magnet using FRSs and present superconducting characteristics for monofilamentary FRS samples. Each monofilamentary FRS supports hoop stress under operation of the magnet. Short lengths of monofilamentary FRSs using tungsten fiber were prepared by RF-magnetron sputtering. Critical current measurement up to 15 T and a uniaxial strain test at 10 T have been carried out. The data support the conceptual design of the 15-T-class pulsed superconducting magnet using FRSs.<>
Keywords :
Tokamak devices; composite superconductors; critical currents; fibre reinforced composites; fusion reactor theory and design; niobium alloys; sputtered coatings; superconducting magnets; tin alloys; tungsten; 15 T; Nb/sub 3/Sn-W; RF-magnetron sputtering; conceptual design; critical current; fiber-reinforced superconductor; high elastic modulus fibers; high field pulsed superconducting magnets; hoop stress; monofilamentary FRS; plasma heating; tokamak fusion reactor; uniaxial strain test; Conductors; Critical current; Magnetoelasticity; Niobium; Optical fiber testing; Sputtering; Stress; Superconducting magnets; Tin; Tungsten;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
