| EPSRC Reference: |
GR/M12001/01 |
| Title: |
HIGH CAPACITY SPRAY PYROLYSIS ROUTE FOR THE PRODUCTION OF SUB-MICRON PZT POWDERS FOR THICK-FILM APPLICATIONS |
| Principal Investigator: |
Milne, Professor SJ |
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| Department: |
Institute of Materials Research |
| Organisation: |
University of Leeds |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 May 1999 |
Ends: |
30 April 2002 |
Value (£): |
210,232
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| No relevance to Underpinning Sectors |
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Summary on Grant Application Form |
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Spray pyrolysis, SP, in contrast to most wet-chemical routes, has the potential to produce chemically homogeneous ceramic starting powders on an industrial scale, but using existing commercially practicable pressure atomisation techniques, particle sizes are too large for direct use in high-grade technical ceramic processing. In preliminary work initiated to test the feasibility of reducing particle size by engineering improved twin fluid atomisation systems, we have demonstrated that it is possible to produce zirconia powders with an average particle size, d(av) = 0.5 um. This is the smallest particle size ever reported for pressure atomisation-spray pyrolysis. There is a technological demand from UK manufacturers of miniaturised actuators and sensors to develop a cost-effective method for synthesising PZT powders with this d(av) value but with a lower d(max) of 1-2 um, than has been achieved so far. We propose a practicable method for achieving this. The new powders would enable a major reduction in the thickness of PZT layers fabricated by screen printing and tape casting, the target being 5-10 um. Internationally it is projected that reducing the layer thickness of multilayer devices will be one of the main challenges facing the electronic ceramics industry over the next 2-5 years.
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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 |
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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.leeds.ac.uk |