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  • Hydrothermally assisted synthesis of ▫${\rm YMnO_3}$▫
    Branković, Zorica ...
    In this work single phase hexagonal ▫${\rm YMnO_3}$▫ powders were prepared starting from ▫${\rm Y(CH_3COO)_3 \cdot xH_2O}$▫, ▫${\rm Mn(CH_3COO)_2 \cdot 4H_2O}$▫, ▫${\rm KMnO_4}$▫ and ▫${\rm KOH}$▫ ... using methods of conventional (280 °C for 6 h) or microwave assisted hydrothermal synthesis (200 °C for 2 h) followed by calcination at 1200 °C for 2 h. According to FESEM analysis the calcined powders consisted of submicronic ▫${\rm YMnO_3}$▫ particles, which were uniform in shape and size. Ceramic samples were obtained by sintering the as-synthesized powders at 1400 °C for 2 h. XRD analysis confirmed the presence of the single phase hexagonal ▫${\rm YMnO_3}$▫. SEM analysis showed a dense and homogeneous microstructure with typical inter- and intra-grain cracks. Magnetic measurements indicated ferrimagnetic properties that were explained by non-stoichiometry of the obtained compound and an excess of manganese that was confirmed by ICP analysis.
    Vir: Ceramics international. - ISSN 0272-8842 (Vol. 41, iss. 10, part B, Dec. 2015, str. 14293-14298)
    Vrsta gradiva - članek, sestavni del
    Leto - 2015
    Jezik - angleški
    COBISS.SI-ID - 17726041

    Povezava(-e):

    http://dx.doi.org/10.1016/j.ceramint.2015.07.060

vir: Ceramics international. - ISSN 0272-8842 (Vol. 41, iss. 10, part B, Dec. 2015, str. 14293-14298)

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