| EPSRC Reference: |
GR/R30174/01 |
| Title: |
Structure Property Relations In SrTiO3-Sr2Nb2O7 Microwave Dielectric 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: |
ROPA |
| Starts: |
29 August 2001 |
Ends: |
28 August 2003 |
Value (£): |
93,472
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| EPSRC Research Topic Classifications: |
| Materials Characterisation |
Materials Synthesis & Growth |
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Summary on Grant Application Form |
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SrTi03-Sr2Nb2O7 (STN) compounds are composed of perovskite units (n=4-6) separated and sheared by 1/2[111] on (110) planes by SrO layers. The processing, properties and microstructure of STN will be studied for potential use as microwave ceramics. Although relative permittivities and quality factors have not been measured, high values, 60-90 and 15,000 at 1GHz, respectively, are expected since the compounds are composed of (Ti,Nb)06 octahedra. The temperature coefficient of resonant frequency (TCF) will be systematically varied by altering the SrTiO3-Sr2Nb20, ratio since this will affect the tolerance factor and the number of Sr0 layers r unit volume: two factors recentl shown to control TCF.
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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 |