| EPSRC Reference: |
GR/M85517/01 |
| Title: |
FABRICATION OF MAGNETICALLY DOPED CHEVREL PHASE SUPERCONDUCTING MATERIALS FOR HIGH FIELD APPLICATIONS |
| Principal Investigator: |
Hampshire, Professor DP |
| Other Investigators: |
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| Department: |
Physics |
| Organisation: |
Durham, University of |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
06 March 2000 |
Ends: |
05 March 2003 |
Value (£): |
281,355
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| EPSRC Research Topic Classifications: |
| Materials Synthesis & Growth |
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| EPSRC Industrial Sector Classifications: |
| Electronics |
No relevance to Underpinning Sectors |
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| Panel History: |
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Summary on Grant Application Form |
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Under grant GR/J39588 (finished 02/98) we developed the expertise to fabricate chervel phase superconductors using glove box and HIP facilities. By HIP'ing PbMo6s8, the critical temperature was increased to 0.5k, the irreversibility field was doubled to 39T and 4.2k and the critical current density (JC) was increased by a factor of 20. We will fabricate new quaternary chervel phase bulk and single crystal superconductors using hot isostatic pressing and at high temperatures (1900 C) to improve sintering. The composition will be optimised to include sufficient magnetic elements (eg Pb) to keep the fundamental parameters (eg BC2) and sufficient magnetic ions (eg Gd) to introduce very strong magnetic pinning distrinuted on the atomic scale. Magnetic and heat capacity measurements will be from 0.5K up to the critical temperature. High feild measurements will be made in house up to 17 T and at Grenoble up to 23 T. Detailed TEM will be used to investigate the grain boundary composition and structure. We will measure the effect of magnetic and non-magnetic ions on the inter and intragranular JC and on surface currents. We intend to fabricate bulk quaternary chervel phase materials with high critical current densities in high magnetic fields.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
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| Date Materialised |
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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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