6533b859fe1ef96bd12b754b

RESEARCH PRODUCT

Dielectric properties of potassium–sodium niobate ceramics at low frequencies

Karlis BormanisIlze SmeltereMaija AntonovaBarbara Garbarz-glosAnna KalvaneA. I. Burkhanov

subject

010302 applied physicsPhotocurrentMaterials sciencebusiness.industryFerroelectric ceramicsAnalytical chemistry02 engineering and technologyDielectricPhotoelectric effect021001 nanoscience & nanotechnology01 natural sciencesFerroelectricityOpticsvisual_artElectric field0103 physical sciencesvisual_art.visual_art_mediumGeneral Materials ScienceIrradiationCeramic0210 nano-technologybusinessInstrumentation

description

ABSTRACTA study of the effects of ageing history on the electrical properties of lead-free ferroelectric ceramics of (K0.5Na0.5)(Nb1−xSbx)O3 + 0.5 mol% MnO2 and (K0.5Na0.5)(Nb1−xTax)O3 + 0.5 mol%MnO2 for x = 0.05 is reported. The samples after storage at a constant temperature have been subject to infra-low-frequency electric field and radiation. Differences of the photoelectric response between the two examined compounds were found and the restoration of polarisation in the aged ceramic materials by cycles of applied field is discussed.

https://doi.org/10.1080/01411594.2016.1201822