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Nanocrystalline GdFeO3 via the gel-combustion process

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Abstract

Nanocrystalline GdFeO3 powder was synthesized by a combustion technique, using glycine as the fuel and the corresponding metal nitrates as oxidants. Five different molar ratios of fuel-to-oxidant were chosen to study the effect of fuel content on the phase formation and the powder properties. The powders after calcination were characterized by x-ray diffraction (XRD) and crystallite sizes calculated by x-ray line broadening. The crystallite sizes for the phase pure products after calcination at 600 °C were in the range 40-65 nm. The transmission electron microscopy observations clearly highlight the pronounced crystallinity for the propellant chemistry samples. The nature of the agglomerates was investigated by light scattering studies. The lattice thermal expansion behavior was also studied by high-temperature XRD.

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  1. Applied Chemistry Division, Bhabha Atomic Research Centre Mumbai -, 400 085, India

    S. V. Chavan & A. K. Tyagi

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  1. S. V. Chavan
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  2. A. K. Tyagi
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Correspondence to A. K. Tyagi.

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Chavan, S.V., Tyagi, A.K. Nanocrystalline GdFeO3 via the gel-combustion process. Journal of Materials Research 20, 2654–2659 (2005). https://doi.org/10.1557/JMR.2005.0337

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  • DOI: https://doi.org/10.1557/JMR.2005.0337

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