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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
Papers

Abstract

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.

Keywords

Thermal Analysis Calcination Thermal Treatment Thermogravimetric Analysis Volume Change 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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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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