| EPSRC Reference: |
GR/N64755/01 |
| Title: |
THE OXIDATION BEHAVIOR OF CO/DY MODIFIED NDFEB MAGNETS |
| Principal Investigator: |
Harris, Professor IR |
| Other Investigators: |
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| Researcher Co-Investigators: |
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| Project Partners: |
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| Department: |
Metallurgy and Materials |
| Organisation: |
University of Birmingham |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 January 2001 |
Ends: |
30 June 2004 |
Value (£): |
75,164
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| EPSRC Research Topic Classifications: |
| Materials Characterisation |
Materials Processing |
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Summary on Grant Application Form |
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NdFeB-based alloys have attractive magnetic properties but their potential for commercial exploitation is limited by their low Curie temperature and poor corrosion and oxidation properties. These factors limit the use of ternary compositions to about 100*C.Oxidation studies, to date, have concentrated on the ternary alloy but, in this proposed research, a systematic study will be undertaken of the oxidation behaviour of higher temperature grades of magnets, containing Co and Dy. Minor additions that have been shown to provide enhanced corrosion resistance will also form a part of this study.The intention is to obtain a fundamental understanding of the oxidation behaviour of these magnets and the influence of the oxidation on the magnetic properties. This will allow predictions of the lifetime at high operating temperatures (up to 200*C).The use of (short-term) exposure at even higher temperature (500 to 600*C) will be made in an attempt to increase the iron grain size within the oxygen-affected surface zone. By this means, improved resistance to further oxygen ingress may result at the lower operating temperatures.
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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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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.bham.ac.uk |