Dopant Concentration Controls Quasi-Static Electrostrictive Strain Response of Ceria Ceramics
Maxim Varenik, Juan C. Nino, Ellen Wachtel, Sangtae Kim, O. Yeheskel, Nimrod Yavo, Igor Lubomirsky
Abstract
≤ 0.1 (Gd)-0.15 (Sm), the Debye-type relaxation time constant (τ) is in the range 60-300 ms. The inverse relationship between dopant concentration and quasi-static electrostrictive strain parallels the anelasticity and ionic conductivity of Gd- and Sm-doped ceria ceramics, indicating that electrostriction is partially governed by ordering of vacancies and changes in local symmetry.
Topics & Concepts
ElectrostrictionMaterials scienceDopantCeramicElectric fieldAnalytical Chemistry (journal)DopingIonic bondingComposite materialPiezoelectricityCondensed matter physicsIonOptoelectronicsOrganic chemistryChemistryQuantum mechanicsPhysicsFerroelectric and Piezoelectric MaterialsAdvancements in Solid Oxide Fuel CellsElectronic and Structural Properties of Oxides