INFLUENCE OF THE BALL MILLING PROCESS AND AIR SINTERING CONDITIONS ON THE SYNTHESIS OF La₀.₇Sr₀.₃MnO₃ CERAMICS
DOI:
https://doi.org/10.24193/subbchem.2019.2.38Keywords:
perovskite manganites, LCMO, mechanochemical synthesis, XRD, SEM, microstructural characterizationAbstract
Conventional solid-state synthesis was used to produce mixed valence manganite La0.7Ca0.3MnO3 (LCMO) from the mechanochemically activated mixture of the corresponding metal oxides. Prepared samples were characterized by XRD and SEM measurements. The results showed that it is possible to produce single phase LCMO perovskite after at least 2h of ball milling of the reaction mixture, followed by 1400 ºC sintering of the dry-pressed sample pellets. The prolonged milling time as well as the higher sintering temperature leads to further stabilization of crystal structure.
References
J. Alonso, J.M. Barandiarán, L.F. Barquín, A. García-Arribas, Magnetic Nanoparticles, Synthesis, Properties, and Applications, In Magnetic Nanostructured Materials: From Lab to Fab, A.A., El Gendy, J.M. Barandiarán, R.L. Hadimani, Eds., Elsevier, 2018, 1-40.
A.P. Ramirez, Journal of Physics: Condensed Matter, 1997, 9, 8171.
J.A. Alonso, D. Khomskii, J.M.D. Coey, G.A. Gehring, M. Blamire, S.W. Cheong, P.C. Riedi, N.D. Mathur, D.M. Edwards, J.P. Attfield, P. Battle, Philosophical Transactions: Mathematical, Physical and Engineering Sciences, 1998, 1617.
J.M.D. Coey, M. Viret, S. Von Molnar, Advances in physics, 1999, 48, 167.
H. Rietveld, Journal of applied Crystallography, 1969, 2, 65.
P.R. Sagdeo, S. Anwar, N.P. Lalla, Powder diffraction, 2006, 21, 40.
W. Kraus, G. Nolze, PowderCell. Version 2.4. Federal Institute for Materials Research and Testing, Berlin, 1999.
G. Nolze, PowderCell: A mixture between crystal structure visualizer, simulation and refinement tool. In Powder Diffraction: Proceedings of the II International School on Powder Diffraction, 2002, 146.
T. Sudyoadsuk, R. Suryanarayanan, P. Winotai, L.E. Wenger, Journal of magnetism and magnetic materials, 2004, 278, 96.
A.V. Boris, N.N. Kovaleva, A.V. Bazhenov, A.V. Samoilov, N.C. Yeh, R.P. Vasquez, Journal of applied physics, 1997, 81, 5756.
Y.H. Li, F. Damay, L.F. Cohen, K.A. Thomas, A.K. Hossain, J.L. MacManus-Driscoll, Journal of the American Ceramic Society, 2001, 84, 747.
G. Ceder, K. Persson, The Materials Project: A Materials Genome Approach to accelerating materials innovation, 2010, APL Materials, 2013, 1, 011002.
A. Gómez, E. Chavarriaga, I. Supelano, C.A. Parra, O. Morán, AIP Advances, 2018, 8, 056430.
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