Presentation Information
[9a-P04-1]Impact of Thermally-Induced Microstructural Evolution on the Mechanical, Thermal, and Electrical Properties of Strontium Cerate
〇(D)Arpita Tripathi1, Shail Upadhyay1 (1.IIT (BHU) Varanasi)
Keywords:
Perovskite oxide,Dielectrics,TBC materials
Perovskite oxide SrCeO3 is a versatile material with multifunctional properties. For practical use, understanding effects of grains, grain boundaries, and porosity is essential. SrCeO3 was synthesized by solid state reaction and sintered at 1300 to 1600 Celcius to study grain growth and porosity. XRD and Rietveld refinement confirmed monophase structure, SEM showed microstructural changes. Optical band gap was measured by UV Vis spectroscopy. Hardness followed HallPetch equation, elastic modulus by Oliver and Pharr method. Phase and thermal stability were confirmed by XRD and TG DSC over 10 days. Dielectric and electrical properties were measured from 100Hz to 2MHz and RT to 600 Celcius, showing conduction above room temperature is governed by doubly ionized oxygen vacancies.