Dielectric and ferroelectric properties of lead indium niobate ceramic prepared by wolframite method
Source abstract
Abstract
The dielectric and ferroelectric properties of lead indium niobate (Pb(In 1/2 Nb 1/2 )O 3 , PIN) ceramic prepared by an oxide-mixing method via wolframite route were investigated. The 98.5% perovskite fine-grained PIN ceramics with average grain sizes of 1-2 μm were obtained by sintering at 1050 °C for 2 h. The dielectric properties of the PIN were of relaxor ferroelectric behavior with temperature of dielectric maximum (T m ) ∼ 53 °C and dielectric constant (e r ) ∼ 4300 (at 1 kHz). The P-E hysteresis loop measurements at various temperatures showed that the ferroelectric properties of the PIN ceramic changed gradually from the paraelectric behavior at temperature above T m to slim-loop type relaxor behavior at temperature below T m . Moreover, the P-E loop became more open at temperatures much lower than T m . At -25 °C, the maximum polarization is found to be 8 μm/cm 2 at a field of 30 kV/cm, with P r value of 2.5 μm/cm 2 and E c of +7.5 kV/cm.
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Research context
OpenAlex topics: Ferroelectric and Piezoelectric Materials · Microwave Dielectric Ceramics Synthesis · Acoustic Wave Resonator Technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (23)
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