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Nickel–alumina nanocomposite powders prepared by novel in situchemical reduction

Published online by Cambridge University Press:  31 January 2011

Zheng-Ren Huang ,
Dongliang Jiang ,
Daniel Michel ,
Léo Mazerolles ,
Alain Ferrand ,
Thomas di Costanzo  and
Jean-Louis Vignes
Zheng-Ren Huang
Affiliation:
Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Ding-Xi Road, Shanghai 200050, People's Republic of China
Dongliang Jiang
Affiliation:
Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Ding-Xi Road, Shanghai 200050, People's Republic of China
Daniel Michel
Affiliation:
Centre d'Etudes de Chimie Métallurgique, CNRS UPR 2801, 15 rue Georges Urbain, 94407 Vitry, France
Léo Mazerolles
Affiliation:
Centre d'Etudes de Chimie Métallurgique, CNRS UPR 2801, 15 rue Georges Urbain, 94407 Vitry, France
Alain Ferrand
Affiliation:
Centre d'Etudes de Chimie Métallurgique, CNRS UPR 2801, 15 rue Georges Urbain, 94407 Vitry, France
Thomas di Costanzo
Affiliation:
Centre d'Etudes de Chimie Métallurgique, CNRS UPR 2801, 15 rue Georges Urbain, 94407 Vitry, France
Jean-Louis Vignes
Affiliation:
Centre d'Etudes de Chimie Métallurgique, CNRS UPR 2801, 15 rue Georges Urbain, 94407 Vitry, France
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Abstract

Nanocomposite powders of Ni–Al2O3 (5 and 10 vol% Ni) were prepared from porous alumina preforms with high specific area (100 m2 g?1) impregnated with nickel nitrate. Samples were obtained by reduction under a controlled oxygen partial pressure either directly or through an intermediate step, giving nickel aluminum spinel. In both cases, homogeneous dispersions of nickel particles in the alumina matrix were achieved. The Ni particle size ranged from 10 to 100 nm, depending on the preparation conditions and temperature.

Type
Articles
Information
Journal of Materials Research , Volume 17 , Issue 12 , December 2002 , pp. 3177 - 3181
Copyright
Copyright © Materials Research Society 2002

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