Potential applications of NbN composites in fusion reactor magnets
Recent projected requirements for large scale fusion reactor magnets call for the development of advanced superconducting materials capable of producing peak magnetic fields in excess of 15 T with current densities in the windings in excess of 2 x 10/sup 3/ A/cm/sup 2/. These materials will be exposed to large stresses (up to 500 MPa) and neutron fluences as high as 10/sup 22/ n/cm/sup 2/ over the lifetime of the conductor. The demonstrated strain and radiation tolerance of NbN together with excellent superconducting properties make it a promising candidate to be used in a superconducting composite capable of satisfying these requirements. Our program at Argonne is directed towards demonstrating a method of fabrication which is capable of achieving these goals. Tests will be conducted on moderate lengths of NbN superconducting composites to verify the ability to achieve large overall current densities in magnetic fields up to 20 T. High field applications of NbN are also being investigated by groups in Japan and Germany.
- Research Organization:
- Argonne National Lab., IL (USA)
- DOE Contract Number:
- W-31-109-ENG-38
- OSTI ID:
- 5725509
- Report Number(s):
- CONF-860421-38; ON: DE86010500
- Resource Relation:
- Conference: 2. international conference on fusion reactor materials (ICFRM-2), Chicago, IL, USA, 13 Apr 1986; Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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SUPERCONDUCTING MAGNETS
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NEUTRON FLUENCE
NIOBIUM NITRIDES
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ELECTRICAL EQUIPMENT
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IRON ALLOYS
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NICKEL BASE ALLOYS
NIOBIUM COMPOUNDS
NITRIDES
NITROGEN COMPOUNDS
OXIDES
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