| EPSRC Reference: |
GR/L71896/01 |
| Title: |
MICROSTRUCTURE, STRUCTURE - PROPERTY RELATIONS IN HIGH DIELECTRIC CONSTANT MICROWAVE RESONATORS |
| Principal Investigator: |
Reaney, Professor IM |
| Other Investigators: |
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| Researcher Co-Investigators: |
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| Project Partners: |
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| Department: |
Materials Science and Engineering |
| Organisation: |
University of Sheffield |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 January 1998 |
Ends: |
31 December 1999 |
Value (£): |
130,339
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| EPSRC Research Topic Classifications: |
| Materials Characterisation |
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Summary on Grant Application Form |
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Pyrochlore structured lead niobate (PN) based ceramics show great promise for use as microwave resonators since they have a low dielectric loss and a high dielectric constant. The relationship between structure - microstructure and properties in pyrochlore-structured microwave resonators will be investigated with the intention of developing a microwave material for high dielectric constant applications which is superior to those available at the moment. Particular attention will be paid to the value of the temperature coefficient of the resonant frequency which needs to be close to zero and tuneable. Cation substitutions into the base PN ceramic will be used to control this. An LCR meter and network analyser will be used to measure the electrical properties at low and high frequency, respectively. Microstructural and structural data will be obtained using a combination of x-ray diffraction, analytical and high resolution electron microscopy.
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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.shef.ac.uk |