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Preparation and electrical properties of dense micro-cermets made of nickel ferrite and metallic copper

Baco-Carles, Valérie and Pasquet, Isabelle and Laurent, Véronique and Gabriel, Armand and Tailhades, Philippe Preparation and electrical properties of dense micro-cermets made of nickel ferrite and metallic copper. (2009) Solid State Sciences, vol.11 (8). pp. 1503-1506. ISSN 1293-2558

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Official URL: http://dx.doi.org/10.1016/j.solidstatesciences.2009.05.016

Abstract

Dense micro-cermets made of nickel ferrites and copper micrometric particles were obtained from partial reduction under hydrogenated atmosphere at 350 C of mixed copper nickel ferrites, and sintering in nitrogen at 980 C. The small copper particles are homogeneous in size and well dispersed in the spinel oxide matrix. No exudation of copper metal was observed after sintering. The micro-cermets prepared are semi-conducting materials with electrical conductivity lying from 44 to 130 S/cm at 980 C. Their overall characteristics make them interesting for inert anodes dedicated to aluminium electrolysis in melted cryolite.

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 Solid State Sciences website : http://www.sciencedirect.com/science/journal/12932558
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution: Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
French research institutions > Centre National de la Recherche Scientifique - CNRS
Other partners > Rio Tinto Alcan (FRANCE)
Laboratory name:
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Deposited By: Nihad Lahdifi

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