Ferroelectric properties of lead titanate

Bhide, V. G. ; Hegde, M. S. ; Deshmukh, K. G. (1968) Ferroelectric properties of lead titanate Journal of the American Ceramic Society, 51 (10). pp. 565-568. ISSN 0002-7820

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Official URL: http://www3.interscience.wiley.com/journal/1197113...

Related URL: http://dx.doi.org/10.1111/j.1151-2916.1968.tb13323.x


The eutectic and solidus temperatures of the PbTiO3-KF binary system were investigated by DTA for four compositions. Optical studies of crystal habit as a function of crystallization conditions were used to determine favorable conditions for growing PbTiO3 crystals from a KF flux. Results of x-ray studies of these crystals agree closely with those of earlier studies. Interferometric measurements of thermal expansion confirmed the ferroelectric transition at 490°C. Specific heat studies indicated a transition energy of about 1550 cal/mole with an entropy change of 2.055 cal/mole ° C. Spontaneous polarization was calculated as 66 μ coulombs/cm2.

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