Abstract
Pure and Sb-doped BNKT (Bi0.5(Na0.5K0.5)0.5 TiO3 + x wt.% Sb, (x = 0.2, 0.4, 0.6, 0.8 & 1.0) lead free ceramics were synthesized away from its MPB by solid state reaction method. The crystalline nature of the synthesized ceramic was studied at room temperature using X-ray powder diffraction (XRPD) technique. The temperature dependence of dielectric constant () in temperature range 20–500°C has revealed two phase transitions from ferroelectric to anti-ferroelectric (Td) and antiferroelectric to paraelectric (Tc) phase. Addition of Sb was found to increase the temperature of these phase transitions, thus increasing the usable temperature range of these ferroelectrics. All samples were found to exhibit normal Curie-Weiss law above its Tc. A linear fitting of the modified Curie- Weiss law to experimental data show that all the samples have diffuse character. The value of γ was found to be between1.38 to 1.65.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
