Effects of temperature on aging degradation of soft and hard lead zirconate titanate ceramics

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dc.contributor.authorPromsawat, Methee
dc.contributor.authorMarungsri, Boonruang
dc.contributor.authorPromsawat, Napatporn
dc.contributor.authorJanphuang, Pattanaphong
dc.contributor.authorLuo, Zhenhua
dc.contributor.authorPojprapai, Soodkhet
dc.date.accessioned2017-08-21T16:08:52Z
dc.date.available2017-08-21T16:08:52Z
dc.date.issued2017-04-26
dc.description.abstractThis paper aims to study the effects of heat treatment temperatures on the aging degradation of piezoelectric properties, i.e. piezoelectric coefficient (d33) and planar electromechanical coupling factor (kp), in soft and hard PZT ceramics. Aging degradations of d33 and kp of the samples were measured for 192 h prior to heat treatments. The samples were then treated at various temperatures equivalent to 0.3, 0.4, 0.5, 0.6, 0.7 and 0.8 times of the materials' Curie temperatures. Aging degradations of d33 and kp of the heat-treated samples were observed continuously for 1128 h. The piezoelectric properties of the un-treated samples gradually decreased with aging time. Attenuation of d33 and kp in the samples immediately after heat treatment increased with increasing heat treatment temperature. Moreover, aging degradation rate and relaxation time of the samples measured after heat treatments increased with increasing heat treatment temperature. Comparing to hard PZT ceramics, soft PZT demonstrated greater change of d33 and kp immediately after heat treatments. Soft PZT also showed greater aging rate and aging time than those of hard PZT. From the overall results, it can be concluded that both material type and heat treatment temperature have effects on aging behaviors of PZT materials. Aging degradation was more pronounced in soft PZT and the samples treated at high temperatures. The observed aging behaviors of PZT materials were explained by the interaction between domains and defects of oxygen vacancies that leads to volume, domain and grain boundary effects.en_UK
dc.identifier.citationPromsawat M, Marungsri B, Promsawat N, Janphuang P, Luo Z, Pojprapai S, Effects of temperature on aging degradation of soft and hard lead zirconate titanate ceramics, Vol. 43, Issue 13, September 2017, Pp. 9709-9714en_UK
dc.identifier.cris18121633
dc.identifier.issn0272-8842
dc.identifier.urihttp://dx.doi.org/10.1016/j.ceramint.2017.04.145
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/12353
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectAgingen_UK
dc.subjectHeat treatmenten_UK
dc.subjectPiezoelectric propertiesen_UK
dc.subjectPZTen_UK
dc.titleEffects of temperature on aging degradation of soft and hard lead zirconate titanate ceramicsen_UK
dc.typeArticleen_UK

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