Elecrophysical properties of ceramic solid solutions Li0,03Na0,97TayNb1–yO3 with perovskite structure belonging to morphotropic areas
Transactions of the Kоla Science Centre of RAS. Series: Engineering Sciences(2022)
摘要
The temperature dependences of the complex permittivity and the dielectric loss tangent of ferroelectric solid solutions Li0.03Na0.97TayNb1–yO3 (y = 0.1–0.7) with the perovskite structure have been studied. It has been found that Li0.03Na0.97TayNb1–yO3 solid solutions undergo three phase transitions in the studied temperature range. The temperatures of ferroelectric phase transitions have been determined, and it has been established that an increase in the tantalum concentration leads to a decrease in this temperature. It is revealed that the studied solid solutions at room temperature have high values of εʹ in the low frequency region.
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关键词
perovskite structure,elecrophysical properties
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