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Metastable phase formation during flame spray pyrolysis of ZrO2(Y2O3)–Al2O3 nanoparticles

Suffner, J. and Wang, D. and Kübel, C. and Hahn, H. (2011):
Metastable phase formation during flame spray pyrolysis of ZrO2(Y2O3)–Al2O3 nanoparticles.
In: Scripta Materialia, 64 (8), pp. 781-784. Elsevier Science Publishing Company, ISSN 13596462,
[Article]

Abstract

Nanoparticles with the composition (1 − x mol.%) [ZrO2 (3 mol.% Y2O3)]–(x mol.%) Al2O3, with x ranging from 0 to 1, were prepared by liquid-feed flame spray pyrolysis. The effect of the alumina content on the morphology and phase formation was studied by means of X-ray diffraction, nitrogen adsorption and transmission electron microscopy. It is shown that alumina can be incorporated into the nanoparticles at levels above the solubility limit, leading to the formation of metastable extended solid solutions and core–shell nanoparticles.

Item Type: Article
Erschienen: 2011
Creators: Suffner, J. and Wang, D. and Kübel, C. and Hahn, H.
Title: Metastable phase formation during flame spray pyrolysis of ZrO2(Y2O3)–Al2O3 nanoparticles
Language: English
Abstract:

Nanoparticles with the composition (1 − x mol.%) [ZrO2 (3 mol.% Y2O3)]–(x mol.%) Al2O3, with x ranging from 0 to 1, were prepared by liquid-feed flame spray pyrolysis. The effect of the alumina content on the morphology and phase formation was studied by means of X-ray diffraction, nitrogen adsorption and transmission electron microscopy. It is shown that alumina can be incorporated into the nanoparticles at levels above the solubility limit, leading to the formation of metastable extended solid solutions and core–shell nanoparticles.

Journal or Publication Title: Scripta Materialia
Journal volume: 64
Number: 8
Publisher: Elsevier Science Publishing Company
Uncontrolled Keywords: Nanocrystalline materials, X-ray diffraction (XRD), Ceramics, Phase transformation, Annealing
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Joint Research Laboratory Nanomaterials
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Date Deposited: 19 Feb 2013 09:40
Official URL: http://dx.doi.org/10.1016/j.scriptamat.2010.12.040
Identification Number: doi:10.1016/j.scriptamat.2010.12.040
Funders: The financial support by the State of Hesse (Germany) is gratefully acknowledged.
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