6533b7ddfe1ef96bd12748d8
RESEARCH PRODUCT
Grain growth in Na 0.5 Bi 0.5 TiO 3 -based solid solutions
M. KniteMaija AntonovaM. LivinshL. EgliteL. EgliteEriks Birkssubject
Materials sciencesolid-state sinteringSintering02 engineering and technologyAbnormal grain growth01 natural sciencesNBT0103 physical sciencesMaterials Chemistry:NATURAL SCIENCES:Physics [Research Subject Categories]Electrical and Electronic Engineering010302 applied physicsDopantabnormal grain growthLead-free ferroelectrics021001 nanoscience & nanotechnologyCondensed Matter PhysicsMicrostructureElectronic Optical and Magnetic MaterialsGrain growthChemical engineeringControl and Systems EngineeringCeramics and Composites0210 nano-technologyStoichiometrySolid solutiondescription
This paper discusses effects of different dopants, sintering technique and parameters on microstructure and properties of pure and Yb, Er-doped Na0.5Bi0.5TiO3 (NBT). All stoichiometric compositions follow the abnormal grain growth mechanism (AGG) and exhibit a bimodal grain size distribution. Bi over-stoichiometry, two step sintering and hot pressing are effective inhibitors of AGG. Microstructure of sintered NBT greatly influences such properties as dielectric permittivity and depolarization temperature.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-02-12 | Integrated Ferroelectrics |