Modified PLZT high voltage dielectrics

Gururaja, T. R. ; Kumarakrishnan, S. ; Subbarao, E. C. (1980) Modified PLZT high voltage dielectrics Ferroelectrics, 27 (1). pp. 277-280. ISSN 0015-0193

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PLZT compositions 8/80/20, 10/75/25, and 12/70/30 were modified by the incorporation of Ca2+, Sr2+ (up to 5%) and Ba2+ (up to 10%) in place of Pb2+ and Nd3+ partially and completely for La3+. Y3+ substitutions for La3+ cause the formation of a second phase. The variation of dielectric constant with temperature, dc bias and composition may be explained by the location of the composition relative to the AFE-FE phase boundary in the PLZT system.

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