Synthesis of Fe-ZrO2 nanocomposite powders by reduction in H2 of a nanocrystalline (Zr, Fe)O2 solid solution
| Autor: | Felipe Legorreta Garcia, V.G. de Resende, Ch. Laurent, E. De Grave, Alain Peigney |
|---|---|
| Přispěvatelé: | Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Universiteit Gent - UGENT (BELGIUM) |
| Jazyk: | angličtina |
| Rok vydání: | 2009 |
| Předmět: |
education.field_of_study
Nanocomposite Materials science Scanning electron microscope Mössbauer spectroscopy Mechanical Engineering Matériaux Population Metals and Alloys Analytical chemistry Nanocrystalline material Nanocomposites Nuclear magnetic resonance Mechanics of Materials Phase (matter) Materials Chemistry Iron-zirconia Nanoparticles Particle size education Monoclinic crystal system Solid solution |
| Zdroj: | Journal of Alloys and Compounds. |
| ISSN: | 0925-8388 |
| Popis: | The formation of Fe-ZrO2 nanocomposite powders by reduction in hydrogen of a nanocrystalline totally stabilized Zr0.9Fe0.1O1.95 solid solution was investigated by X-ray diffraction (XRD), field-emission-gun scanning electron microscopy (FEG-SEM) and Mössbauer spectroscopy. The reduction of the stabilized Zr0.9Fe0.1O1.95 solid solution and the formation of metallic particles precedes the transformation of zirconia into the monoclinic phase, which becomes the major zirconia phase upon reduction at 950 °C. α-Fe particles with a size distribution slightly increasing from 10–50 to 20–70 nm upon the increase in reduction temperature are observed and a second population of smaller ( |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect