Porous, functionally gradient pyroelectric materials

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dc.contributor.authorShaw, Christopher P.
dc.contributor.authorWhatmore, Roger W.
dc.contributor.authorAlcock, Jeffrey R.
dc.date.accessioned2007-01-23T16:18:02Z
dc.date.available2007-01-23T16:18:02Z
dc.date.issued2007-01
dc.description.abstractProperties 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.extent1478568 bytes
dc.format.mimetypeapplication/pdf
dc.identifier.citationShaw CP, Whatmore RW, Alcock JR. (2007) Porous, functionally gradient pyroelectric materials. Journal of the American Ceramic Society, Volume 90, Issue 1, pp. 137–142en
dc.identifier.issn0002-7820
dc.identifier.urihttp://hdl.handle.net/1826/1391
dc.identifier.urihttp://dx.doi.org/10.1111/j.1551-2916.2006.01373.x
dc.language.isoenen
dc.publisherBlackwell Publishingen
dc.rightsThe definitive version is available at www.blackwell-synergy.com
dc.titlePorous, functionally gradient pyroelectric materialsen
dc.typeArticleen

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