Magnetic iron oxide nanopowders produced by CO2 laser evaporation

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 es...

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Published inJournal of magnetism and magnetic materials Vol. 311; no. 1; pp. 73 - 77
Main Authors KURLAND, Heinz-Dieter, GRABOW, Janet, STAUPENDAHL, Gisbert, ANDRÄ, Wilfried, DUTZ, Silvio, BELLEMANN, Matthias Erich
Format Conference Proceeding Journal Article
LanguageEnglish
Published Amsterdam Elsevier Science 01.04.2007
Subjects
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Cross-disciplinary physics: materials science; rheology
Exact sciences and technology
Magnetic properties and materials
Magnetic properties of nanostructures
Materials science
Nanoscale materials and structures: fabrication and characterization
Other topics in nanoscale materials and structures
Physics
Iron oxide
Laser deposition
Ferromagnetic materials
XRD
Coatings
Magnetic nanopowder
Nanoparticles
Hysteresis loss
Magnetite
Transmission electron microscopy
Magnetic separation
Coated particle
In situ coating
Iron oxides
Laser evaporation
Nanostructured materials
Magnetic properties
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Summary: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.
Bibliography:SourceType-Scholarly Journals-2
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ObjectType-Conference Paper-1
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ISSN:0304-8853
DOI:10.1016/j.jmmm.2006.10.1166