Journal of Materials Science

, Volume 30, Issue 21, pp 5433–5437 | Cite as

Preparation and characterization of LaNbO4 from amorphous precursors

  • S. Maschio
  • A. Bachiorrini
  • R. Di Monte
  • L. Montanaro


Amorphous precursors of LaNbO4 have been prepared by coprecipitation and mechanical alloying. Powder characteristics before and after calcination were studied by thermogravimetric analysis, differential thermal analysis, Fourier transform-infrared spectroscopy and X-ray diffraction, and the crystallographic changes during thermal treatment were documented by high-temperature X-ray diffraction. The tetragonal structure was stabilized at room temperature for the mechanically alloyed product; cells dimensions were determined from the X-ray diffraction patterns and volume change between monoclinic and tetragonal phase was evaluated and is discussed.


Thermal Analysis Calcination Thermal Treatment Thermogravimetric Analysis Volume Change 
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Copyright information

© Chapman & Hall 1995

Authors and Affiliations

  • S. Maschio
    • 1
  • A. Bachiorrini
    • 1
  • R. Di Monte
    • 2
  • L. Montanaro
    • 3
  1. 1.Dipartimento di Scienze e Tecnologie ChimicheVia del CotonificioUdineItaly
  2. 2.Dipartimento di Ingegneria dei Materiali e Chimica ApplicataVia A. ValerioTriesteItaly
  3. 3.Dipartimento di Scienza dei Materiali e Ingegneria ChimicaCorso Duca Degli AbruzziTorinoItaly

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