"High temperature dielectric measurements have been performed on the ferroelectric and antiferroelectric perovskitic polycrystalline solid solutions in the BiFeO3-PbTiO3-PbZrO3 ternary system. The data were taken in the UHF frequency range with the use of a slotted line and specially constructed sample holder capable of operation at temperatures in excess of 800°C.
The Curie points have been found to occur at progressively higher temperatures with the increase of BiFeO3 content in the solutions except in phase transition regions where minima can occur. The dielectric constants at the Curie temperatures have been found to decrease with BiFeO3 content increase. Extrapolation procedures yielded a Curie point dielectric constant near 1300 for The Curie point of BiFeO3. The Curie point of BiFeO3 was found to occur at 850- 900°C.
The dielectric data demonstrate that BiFeO3 and solutions of PbTiO3 and PbZrO3 with high BiFeO3 content are ferroelectric or antiferroelectric. A discussion is presented, utilizing crystallographic data, which indicate that BiFeO3 is probably ferroelectric"--Abstract, page i.
Gerson, Robert, 1923-2013
James, William Joseph
Furlong, LeRoy R.
McFarland, Charles E.
Rivers, Jack L.
Carson, Ralph S.
Ph. D. in Physics
U. S. Atomic Energy Commission
University of Missouri at Rolla
x, 156 pages
© 1967 Robert Travis Smith, All rights reserved.
Dissertation - Open Access
Ferroelectric crystals -- Magnetic properties
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Smith, Robert Travis, "High frequency ferroelectric properties of the BiFeO₃-PbTiO₃-PbZrO₃ ternary system" (1967). Doctoral Dissertations. 433.