6533b7d5fe1ef96bd126454b
RESEARCH PRODUCT
Relaxor ferroelectric PbSc1/2Nb1/2O3—PbZn1/3Nb2/3O3— PbMg1/3Nb2/3O3ceramics
Maruta DambekalneKarlis BormanisInta BranteAndris Sternbergsubject
Materials scienceAnalytical chemistryDielectricCondensed Matter PhysicsHot pressingElectronic Optical and Magnetic MaterialsPhase (matter)visual_artDifferential thermal analysisvisual_art.visual_art_mediumDissipation factorCeramicPorositySolid solutiondescription
Abstract Original ternary solid solutions PbSc1/2Nb1/2O3 — PbZn1/3Nb2/3O3-PbMg1/3Nb2/3O3 (PSN-PZN-PMN) have been synthesized by solid state reaction from oxides. Ceramic samples have been obtained by both conventional and hot pressing techniques. The density of the obtained hot pressed ceramics reaches 98% of the value calculated from X-ray data. Dense, high quality samples of pure PZN and compositions containing over 0.8 molar parts of PZN could not be obtained — porosity was up to 10% and they were mainly comprised of the cubic pyrochlore phase. Density, porosity, water absorbtivity, and dielectric permittivity and dissipation factor of the ceramic samples have been measured. Data of differential thermal analysis and X-ray diffraction are used to examine the synthesis and phase constitution of the material. Characteristics of the obtained grain structure are presented.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2000-01-01 | Ferroelectrics |