Influence of sintering temperature on microstructure and electrical properties of La0.67Ba0.33MnO3 ceramic

Citation

Ng, S. W. and Lim, Kean Pah and Shaari, Abdul Halim and Chen, Soo Kien and Wong, Jen Kuen (2009) Influence of sintering temperature on microstructure and electrical properties of La0.67Ba0.33MnO3 ceramic. In: Progress of Physics Research in Malaysia (PERFIK2009), 7-9 Dec. 2009, Melaka, Malaysia. (pp. 59-62).

Abstract

In this study we report the effect of the sintering temperature of polycrystalline La0.67Ba0.33MnO3 (LBMO) manganites synthesized via solid state reaction method. LBMO have been sintered at 900 to 1200 °C in intervals of 100 °C. X‐ray diffraction spectrum confirms that LBMO phase formation starts at 900 °C accompany by a minor second phase of BaMnO3 and fully forms into single phase of LBMO at 1200 °C. SEM images showed that, the grain size increased with sintering temperature and leading to densifications or lower porosity. The Tp was not affected by the sintering temperature. However, the electrical resistances of samples were decreased with the sintering temperature. At higher sintering temperature, due to grain growth and reduction of insulating BaMnO3 phase, the intergrain connectivity has been improved and the resistance drops.

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Additional Metadata

Item Type:	Conference or Workshop Item (Paper)
Divisions:	Faculty of Science
DOI Number:	https://doi.org/10.1063/1.3469734
Publisher:	American Institute of Physics
Keywords:	Ceramic; Electronic properties; Microstructure
Depositing User:	Nabilah Mustapa
Date Deposited:	26 Sep 2017 04:02
Last Modified:	26 Sep 2017 04:02
Altmetrics:	http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1063/1.3469734
URI:	http://psasir.upm.edu.my/id/eprint/57314
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