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Iron-alumina interface in ceramic matrix nanocomposites

Devaux, Xavier and Laurent, Christophe and Brieu, Marc and Rousset, Abel Iron-alumina interface in ceramic matrix nanocomposites. (1992) Journal of Alloys and Compounds, 188. 179-181. ISSN 0925-8388

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Official URL: http://dx.doi.org/10.1016/0925-8388(92)90670-5


The composite powders investigated in the present study consisted of nanometric iron particles dispersed in an alumina matrix. According to the temperature of formation, iron particles are either directly epitaxied in the alumina matrix or separated from the alumina by a thin layer of iron aluminate spinel. This layer disappears after annealing under hydrogen. Transmission electron micrographic and electron microdiffraction pattern analyses led to a general epitaxial relationship between iron nanoparticles and alumina, which holds whatever the elaboration process. A mechanism for the crystallographical reorientation of the iron particles, when the spinel phase is reduced, is proposed.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com The original PDF of the article can be found at Journal of Alloys and Compounds website : http://www.sciencedirect.com/science/article/pii/0925838892906705?via=ihub
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
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Deposited On:27 Mar 2014 13:20

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