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RESEARCH PRODUCT
Heat Capacity and Dielectric Properties of the PNN-PT Ferroelectric Ceramics
Anna KalvaneA. R. BilalovS. N. KallaevK. BormanisZ. V. Omarovsubject
Range (particle radiation)Phase transitionMaterials scienceCondensed matter physicsFerroelectric ceramicsDielectric permittivityThermodynamicsRelative permittivityDielectricCondensed Matter PhysicsHeat capacityElectronic Optical and Magnetic MaterialsSolid solutiondescription
A study of dielectric permittivity and heat capacity of the (1-х)PbNi1/3Nb2/3O3 – хPbTiO3 solid solution system (x = 0.3, 0.4, 0.5) within the 290–700 K range is reported. Temperatures of phase transitions Tm determined from maximums of dielectric permittivity ϵ depends on the content of PbTiO3. A broad phase transition is shown to proceed in the 0.7PbNi1/3Nb2/3O3–0.3PbTiO3 composition around 312 K. Specific to phase transitions anomalous heat capacity is observed at Т ≈ 520 K in all compositions studied.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-01-01 | Ferroelectrics |