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Zirconia-spinel composites. Part I: synthesis of powders and dense materials

Quénard, Olivier and Laurent, Christophe and Peigney, Alain and Rousset, Abel Zirconia-spinel composites. Part I: synthesis of powders and dense materials. (2000) Materials Research Bulletin, 35 (12). 1967-1977. ISSN 0025-5408

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Official URL: http://dx.doi.org/10.1016/S0025-5408(00)00410-4


MgAl2O4 and x wt% ZrO2–MgAl2O4 (1 # x # 30) composite powders were prepared by the urea combustion route. The powders were further ground by either ball milling or attrition to refine the grain size. Zirconia was found solely in the tetragonal form. Dense materials were prepared by hot pressing. The spinel matrix grains were submicronic in size. The ZrO2 particles were homogeneously dispersed at the grain junctions of the matrix, and their average size increased from less than 0.20 mm to ca. 0.45 mm with increasing content of ZrO2. The formation of monoclinic ZrO2 particles proceeded accordingly, being easier in materials with a finer matrix grain size (ex-attrition).

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com/science/article/pii/S0025540800004104
HAL Id:hal-00950063
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Laboratory name:
Deposited On:20 Feb 2014 15:44

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