Porous, Functionally Gradient Pyroelectric Materials.

Shaw, Christopher P.; Whatmore, Roger W.; Alcock, Jeffrey R.

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dc.contributor.author	Shaw, Christopher P.
dc.contributor.author	Whatmore, Roger W.
dc.contributor.author	Alcock, Jeffrey R.
dc.date.accessioned	2007-01-23T16:18:02Z
dc.date.available	2007-01-23T16:18:02Z
dc.date.issued	2007-01
dc.identifier.citation	Christopher P. Shaw, Roger W. Whatmore, Jeffrey R. Alcock (2007) Porous, Functionally Gradient Pyroelectric Materials, Journal of the American Ceramic Society, 90 (1), 137–142.	en
dc.identifier.issn	0002-7820
dc.identifier.uri	http://hdl.handle.net/1826/1391
dc.identifier.uri	http://dx.doi.org/10.1111/j.1551-2916.2006.01373.x
dc.description.abstract	Properties of a new type of pyroelectric ceramic structure containing a layer of known porosity laminated between two dense layers, to form a functionally gradient material (FGM), are reported. The combination of theoretical models for pyroelectric, dielectric, and thermal properties gave a model for the pyroelectric voltage figure of merit (FV) in good agreement with experiment, which had shown a 20% improvement for an introduced central layer porosity of 27%. Preliminary pyroelectric responsivity measurements on FGM infrared detectors indicated an even better improvement. It is postulated that this is due to the porous layer acting as a thermal barrier in the structure.	en
dc.format.extent	1478568 bytes
dc.format.mimetype	application/pdf
dc.language.iso	en	en
dc.publisher	Blackwell Publishing	en
dc.rights	The definitive version is available at www.blackwell-synergy.com
dc.title	Porous, Functionally Gradient Pyroelectric Materials.	en
dc.type	Postprint	en