Please use this identifier to cite or link to this item: http://hdl.handle.net/2080/3809
Full metadata record
DC FieldValueLanguage
dc.contributor.authorGhosh, R.-
dc.contributor.authorBarik, A.-
dc.contributor.authorSahoo, M. R.-
dc.contributor.authorTiwary, Sweta-
dc.contributor.authorVishwakarma, P. N.-
dc.date.accessioned2022-12-16T06:55:02Z-
dc.date.available2022-12-16T06:55:02Z-
dc.date.issued2022-12-
dc.identifier.citation4th International Conference on Processing and Characterization of Materials(ICPCM), NIT Rourkela, India, 9th - 11th December 2022en_US
dc.identifier.urihttp://hdl.handle.net/2080/3809-
dc.descriptionCopyright is with the conference publisheren_US
dc.description.abstractThis work represents an effective approach to witness the true impedance profiles of the material. Here, an A-site double perovskite material LaYFe2O6 is prepared by the sol-gel auto combustion method. This material is characterized by the powder X-ray diffraction (XRD), Field Emission Scanning Electron Microscope (FESEM), Thermogravimetric Analysis (TGA)-Differential Scanning Calorimetry (DSC), and Electrochemical Impedance Spectroscopy (EIS) technique. The XRD measurement confirms the successful synthesis of the said material with orthorhombic crystal structure having symmetry P21nm (~90%) and a slight contribution from Pbnm phase (~10%). The FESEM image suggests porous nature of the sample having grain size ~150 nm, sintered at 1473 K. TGA with simultaneous DSC measurement shows slight but gradual mass loss (related to the adsorbed gases/vapours) above 400K. The EIS (above-room-temperature region) shows, influence of the adsorbed gases/vapours in the pores of the pellet, on the impedance data. In this context, a homemade open – atmospheric impedance measurement setup (working range up to ~600 K) is developed. The EIS measurement are done for (1) as prepared sample (2) sample preheated to 473 K before performing EIS and (3) sample preheated to 400 K under vacuum. The process giving best result (having minimum effect of the adsorbed gases on the observed impedance spectra) is found by following the method (2); i.e., electroded sample is heated to 473 K in atmospheric conditions and brought back to room temperature to start the measuremenen_US
dc.subjectDouble Perovskiteen_US
dc.subjectImpedance spectroscopyen_US
dc.subjectPorousen_US
dc.subjectDiffusionen_US
dc.subjectDiffusionen_US
dc.titleExtrinsic Effects on the Impedance Spectra of LaYFe2O6en_US
dc.typePresentationen_US
Appears in Collections:Conference Papers

Files in This Item:
File Description SizeFormat 
2022_ICPCM_RGhosh_Extrinsic.pdf3.18 MBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.