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Title: Influence of Calcium ions on the structure and properties of LaMnO3
Authors: Bara, Mateusz
Dzik, Jolanta
Feliksik, Kamil
Kozielski, Lucjan
Wodecka-Duś, Beata
Goryczka, Tomasz
Zarycka, Aldona
Adamczyk-Habrajska, Małgorzata
Keywords: LCMO; ceramics; manganites; X-ray diffraction; SEM
Issue Date: 2020
Citation: Archives of Metallurgy and Materials, Vol. 65, iss. 3 (2020) s. 1189-1195
Abstract: La0,7Ca0,3MnO3 polycrystalline were synthesized from La2O3, CaO and MnO2 powder mixture using a solid state reaction technique. The compound powders were obtained through the free sintering method at different temperatures and sintering times in order to study the influence of technological conditions on Ca doped La manganites. The most important physical features as structure, microstructure and morphology were described after X-ray diffraction investigation. Photographs of the specimen fractures were taken with SEM (scanning electron microscope) and they revealed high porosity of the tested material and great tendency for its grains to create agglomerates. Influence of doping and technological conditions on lattice parameters were studied by means of Rietvield analysis. The XRD measurements reveal that La0,7Ca0,3MnO3 has orthorhombic symmetry with Pnma space group.
DOI: 10.24425/amm.2020.133238
ISSN: 1733-3490
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