1LSSC Department of Electrical Engineering, FST, Road Immouzer, Fes, Morocco
2LPTA, Physics Department, Faculty of Science DM, B.P.1796, Fes-Atlas Morocco
Adv. Mater. Lett., 2015, 6 (11), pp 999-1003
DOI: 10.5185/amlett.2015.5976
Publication Date (Web): Oct 26, 2015
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E-mail: elbasset.abdelhalim@gmail.com
Structural, piezoelectric and pyroelectric characteristics of sol gel processed BaTiO3 ceramics calcined at different temperatures (500, 600, 700, 800, 900 and 1000°C) and sintered at 1100°C for 8 hours were investigated. The effect of heat treatment (calcinations) on the piezoelectric coefficient (d33) and the voltage constant (g33) was shown to be similar to that on the mechanical quality factor (Qm). The values of d33, g33 and Qm increase with increasing temperature and reach their maximum at 1000°C (d33=79.16, g33=28.01 and Qm=199). The results revealed that the full width at half maximum (FWHM) of the bands B1and E(TO3+ LO2) has high value and is essential for obtaining BT ceramics having good properties.
Structural characteristics, full width at half maximum (FWHM), piezoelectric parameters, pyroelectric.
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