Technology and electrophysical properties of piezoelectric ceramics based on PbTiO3 - Ba0.85Ca0.15Ti0.90Zr0.10O3 solid solution

The aim of the research is to develop a technology of ceramic piezoelectric materials which сan be used in thermo cyclic mode at temperatures above 280 °C. This technology has been developed for the piezoelectric ceramics based on (1-x)PbTiO 3 - xBa 0.85 Ca 0.15 Ti 0.90 Zr 0.10 O 3 (x = 0.15-0.45)....

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Vydáno v:Ferroelectrics Ročník 619; číslo 4-6; s. 147 - 152
Hlavní autoři: Nesterov, A. A., Tolstunov, M. I., Lebedeva, A. V., Malykhin, A. Y., Dykina, L. A.
Médium: Journal Article
Jazyk:angličtina
Vydáno: Philadelphia Taylor & Francis 26.04.2025
Taylor & Francis Ltd
Témata:
calcium zirconate
Ceramics
lead barium calcium titanate
Low temperature
low-temperature synthesis
Piezoelectric ceramics
Solid solutions
Thermal cycling
ultrafine powders
Ultrafines
ISSN:0015-0193, 1563-5112
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Shrnutí:The aim of the research is to develop a technology of ceramic piezoelectric materials which сan be used in thermo cyclic mode at temperatures above 280 °C. This technology has been developed for the piezoelectric ceramics based on (1-x)PbTiO 3 - xBa 0.85 Ca 0.15 Ti 0.90 Zr 0.10 O 3 (x = 0.15-0.45). The use of low-temperature (380-400 °C) synthesis of ultrafine phase powders and stepwise firing of press blanks make it possible to produce densely packed ceramics with grain diameter of 1 to 2 µm. It has been established that the mole fraction of Ba 0.85 Ca 0.15 Ti 0.90 Zr 0.10 O 3 in the composition increases ε Т 33 /ε 0 from 620 to 1070, and increases d 33 from 165 to 330 pC/N. Thermal cycling of piezoelements based on phases with x = 0.2-0.25 (8 cycles: heating to 350 °C - cooling) reduces d 33 only by 6-8%, and ε Т 33 /ε 0 - by about 5%.
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ISSN:0015-0193
1563-5112
DOI:10.1080/00150193.2024.2328839