Influence of Sintering Temperature on Crystal Phase, Microstructure and Surface Resistivity: Pr0.75Na0.25Mn0.98Cr0.02O3

Authors

  • Elly Shahira Mat Sidik Universiti Tun Hussein Onn Malaysia
  • T. W. Lin Universiti Tun Hussein Onn Malaysia
  • A. Azizi Universiti Tun Hussein Onn Malaysia
  • Suhadir Shamsuddin Universiti Tun Hussein Onn Malaysia

Keywords:

X-ray Diffraction, Scanning Electron Microscopy, Energy Dispersive X-ray Analysis, Four-Point Probe

Abstract

This study investigates the impact of varying sintering temperatures (1100 °C, 1150 °C, and 1200 °C) on the crystal phase, microstructure, and surface resistivity of Pr0.75Na0.25Mn0.98Cr0.02O3, a monovalent perovskite manganite. Employing a solid-state reaction method, samples underwent meticulous preparation and characterization using Powder X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM) with Energy Dispersive X-ray Analysis (EDX), and a four-point probe for surface resistivity. XRD analysis reveals an orthorhombic structure with the Pnma group, demonstrating changes in lattice parameters as sintering temperature increases. SEM imaging highlights irregular grain shapes, with heightened densification at higher temperatures. Furthermore, EDX measurements confirm the accurate composition of all samples, devoid of impurity peaks. The precise determination of the elemental composition percentages included Pr, Na, Mn, Cr, and O.

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Published

01-08-2024

Issue

Vol. 4 No. 1 (2024): EKST

Section

Physic

How to Cite

Elly Shahira Mat Sidik, T. W. Lin, A. Azizi, & Suhadir Shamsuddin. (2024). Influence of Sintering Temperature on Crystal Phase, Microstructure and Surface Resistivity: Pr0.75Na0.25Mn0.98Cr0.02O3. Enhanced Knowledge in Sciences and Technology, 4(1), 291-297. https://penerbit.uthm.edu.my/periodicals/index.php/ekst/article/view/14437