HIGHLY SINTERABLE NANOCRYSTALLINE YTTRIA POWDERS FABRICATED BY SOLUTION COMBUSTION SYNTHESIS

Yttria nanopowders were prepared by solution combustion synthesis using glycine as a fuel. The powders were directly synthesised with a stoichiometric oxidant-to-fuel ratio in an air atmosphere without a calcination process and they were characterised by XRD, particle size distribution, SEM and TEM....

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Published inJournal of Ceramic Processing Research Vol. 11; no. 6; pp. 698 - 700
Main Authors Jung, C-H, Park, J-Y
Format Journal Article
LanguageEnglish
Published 세라믹연구소 2010
Subjects
Ceramics
Combustion synthesis
Crystallites
Nanocomposites
Nanomaterials
Nanostructure
Surface area
Yttrium oxide
재료공학
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Summary:Yttria nanopowders were prepared by solution combustion synthesis using glycine as a fuel. The powders were directly synthesised with a stoichiometric oxidant-to-fuel ratio in an air atmosphere without a calcination process and they were characterised by XRD, particle size distribution, SEM and TEM. The best powder properties were observed in the powders with a glycine-to-nitrate ratio of 1:1.66. This product had a crystallite size of about 31 nm with a high surface area of 38 m2/g. The sintering behaviour of the powders was also studied using a different process. Solution combustion synthesis was shown to be a practically viable process to prepare nano-sized and sinterable yttria-based ceramics.
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G704-001111.2010.11.6.017
ISSN:1229-9162
2672-152X