Characteristics of ZrO2 nanopowders produced by electrical explosion of wire
| Autor: | Yu. A. Kotov, T. M. Demina, A. I. Medvedev, A. M. Murzakaev, A. V. Bagazeev, O. R. Timoshenkova, E. I. Azarkevich |
|---|---|
| Rok vydání: | 2010 |
| Předmět: |
Yield (engineering)
Materials science Zirconium dioxide Metallurgy General Engineering Oxide Condensed Matter Physics Combustion Metal chemistry.chemical_compound chemistry visual_art visual_art.visual_art_medium Particle General Materials Science Particle size Composite material Dispersion (chemistry) |
| Zdroj: | Nanotechnologies in Russia. 5:656-664 |
| ISSN: | 1995-0799 1995-0780 |
| Popis: | A device and an experiment for obtaining zirconium dioxide nanopowders using the electrical explosion of a wire (EEW) with aerodynamical separation are described. The physicochemical and technological properties of powders depending on the conditions under which they are obtained are studied. It is shown that, like for other metals with high oxidation heat, there is an additional dispersion of powders due to combustion. The results are discussed from the point of view of current concepts of electrical explosion and the combustion of metal powders. The optimum technological conditions according to the criterion of the maximum nanofraction yield were found. It is shown that this method allows us to obtain weakly aggregated ZrO2 nanopowders with a spherical particle shape (the specific surface reaching 70 m2/g (average particle size |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink