| EPSRC Reference: |
GR/K70854/01 |
| Title: |
VARIABLE-TEMPERATURE STRAIN EFFECTS ON THE CRITICAL CURRENT OF SUPERCONDUCTORS IN HIGH MAGNETIC FIELDS |
| Principal Investigator: |
Hampshire, Professor DP |
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| Department: |
Physics |
| Organisation: |
Durham, University of |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 April 1996 |
Ends: |
31 May 1999 |
Value (£): |
215,870
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| EPSRC Research Topic Classifications: |
| Materials Characterisation |
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Summary on Grant Application Form |
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Future magnet systems will operate in the range from 1.8K up to 30K using brittle high temperature and low temperature superconductors. It has been demonstrated that the strain tolerance of superconductors is a crucial design parameter in fabrication of high magnetic field systems. We will design and fabricate the first instrument to measure the effect of axial tensile and compressive strain on the critical current density of superconducting wires, tapes and bulk samples in high magnetic fields up to 17 Tesla as function of temperature. Complementary measurements will be made in cryogenic liquids, helium, neon and nitrogen using an apparatus which will be developed to subject a single loop of conductor to a radial bursting stress.We will obtain the first Jc(B,T,E) data on Nb3Sn multifilamentary wires - presently used in high field system and on Chevrel phase and high temperature superconductors - potential candidates for the next generation of high field and cryocooled systems.We intend to incorporate the Fietz-Webb scaling law for Jc(B,T) with Ekin's/ten Haken's strain scaling law Jc(B,E) into a single self-consistent scaling law Jc(B,T,E).
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Key Findings |
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Potential use in non-academic contexts |
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Impacts |
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| Description |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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