Effect of Sintering Temperature on Phase Characteristic and Grain Size of La0.7AE0.3MnO3 (AE=Ba/Ca/Sr) Ceramics Prepared by Sol-Gel Method

Document Type : Original Article

Authors

1 Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Indonesia, Depok 16424, West Java Indonesia

2 Department of Physics, Faculty Sciences and Technology, State Islamic University Syarif Hidayatullah Jakarta, South Tangerang 15412, Banten Indonesia

Abstract

We investigate the impact of sintering temperature on changes in phase characteristics and grain size in the La0.7AE0.3MnO3 (AE=Ba/Ca/Sr) materials synthesized by the sol-gel method. The materials were sintered at different sintering temperatures of 700°C, 800°C, 900°C, and 1200°C. The refinement of the X-ray Diffraction (XRD) pattern revealed that the La0.7Ca0.3MnO3 and La0.7Sr0.3MnO3 materials exhibited a single phase across all sintering temperatures. For La0.7Ba0.3MnO3, a single-phase structure was observed only at sintering temperature above 800°C. All materials showed an increase in peak intensity and a shift in peak in the range angle 31°-34° towards higher angles correlated to increased sintering temperature. Sintering temperature plays an important role in controlling the grain size. Images obtained by Scanning Electron Microscope (SEM) showed the morphology of La0.7Sr0.3MnO3 sintered at different temperatures (700°C, 800°C, and 900°C). The morphology results show an increment in the average grain size with range of 41.05 – 69.27nm because of the grain growth as the sintering temperature.

Keywords

Main Subjects

© 2024 The Author(s). Journal of Progress in Physics of Applied Materials published by Semnan University Press. This is an open access article under the CC-BY 4.0 license. (https://creativecommons.org/licenses/by/4.0/)

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History

  • Receive Date: 19 April 2024
  • Revise Date: 22 May 2024
  • Accept Date: 25 May 2024

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