Magnetic iron oxide nanopowders produced by CO2 laser evaporation |
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| Authors: | Heinz-Dieter Kurland Janet Grabow Gisbert Staupendahl Wilfried Andrä Silvio Dutz Matthias Erich Bellemann |
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| Institution: | 1. Institute of Materials Science and Technology, Friedrich-Schiller-University, Loebdergraben 32, D-07743 Jena, Germany;2. Institute for Physical High Technology, Albert-Einstein-Strasse 9, D-07745 Jena, Germany;3. Department of Biomedical Engineering, University of Applied Sciences, Carl-Zeiss-Promenade 2, D-07745 Jena, Germany |
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| Abstract: | Magnetic iron oxide nanopowders were produced with the laser evaporation technique under normal process gas pressure. In addition, the generated particles were coated in situ with stearic acid and separated on magnets. The methods and the used laboratory setup are briefly described. Influences of essential process conditions, particularly the use of continuous and pulsed laser radiation as well as the properties of the process gas, were experimentally investigated. The produced nanopowders were analysed with TEM, XRD, and magnetic measurements and confirmed the in-principle suitability of the presented method. |
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| Keywords: | Iron oxide Magnetic nanopowder Magnetite Laser evaporation In situ coating Magnetic separation Hysteresis loss |
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