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Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/33806

Title: Rapid synthesis of nanocrystalline YAG via microwave-assisted solvothermal process
Authors: Ramanujam, Prabhu
Vaidhyanathan, Bala
Binner, J.G.P.
Ghanizadeh, Shaghayegh
Zhou, Zhaoxia
Spacie, Chris
Keywords: Agglomeration/agglomerates
Crystals/crystallization
Nanoparticles
Solvothermal synthesis
Yttrium aluminum garnet
Issue Date: 2018
Publisher: Wiley © The American Ceramic Society
Citation: RAMANUJAM, P. ... et al, 2018. Rapid synthesis of nanocrystalline YAG via microwave-assisted solvothermal process. Journal of the American Ceramic Society, 101(11), pp. 4864-4869.
Abstract: A rapid synthesis procedure for the preparation of nanocrystalline yttrium aluminium garnet (nYAG) particles has been developed, for the first time, using the combination of subcritical conditions and microwave irradiation. It is believed that the use of butanediol delayed the onset of pressure rise due to its low partial pressure, while the microwaves facilitated a selective crystallization of nanocrystalline YAG particles in the solvent medium. This methodology was found to encourage rapid bulk nucleation with minimal particle growth or agglomeration of nYAG particles. The resultant powder characteristics, examined using XRD and TEM analyses, revealed that a narrow window of pressure and temperature conditions needed to be maintained to achieve spherical particles in the size range 60‐80 nm without any intermediate phases being formed. The STEM/EDX and FTIR results obtained suggested that the nucleated YAG particles were masked by carbon clouds until they were completely crystallized into single phase YAG particles; this allowed them to be dispersed in water with little agglomeration.
Description: This paper is closed access until 2 June 2019.
Sponsor: The authors would like to thank Morgan Advanced Materials, Swansea, UK, as well as EPSRC for financial support.
Version: Accepted for publication
DOI: 10.1111/jace.15815
URI: https://dspace.lboro.ac.uk/2134/33806
Publisher Link: https://doi.org/10.1111/jace.15815
ISSN: 0002-7820
Appears in Collections:Closed Access (Materials)

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