Magnetic Susceptibility and Saturation Magnetization of some Carbonyl Iron Powders used in Magnetorheological Fluids
| Autor: | Marcelo Knobel, Inés Joekes, Antonio J. F. Bombard, Maria Regina Alcântara |
|---|---|
| Rok vydání: | 2003 |
| Předmět: |
Materials science
Mechanical Engineering Analytical chemistry equipment and supplies Condensed Matter Physics Magnetic susceptibility Magnetic field Shear (sheet metal) Nuclear magnetic resonance Carbonyl iron Ferromagnetism Mechanics of Materials Iron content Magnetorheological fluid General Materials Science human activities |
| Zdroj: | Materials Science Forum. :753 |
| ISSN: | 1662-9752 |
| DOI: | 10.4028/www.scientific.net/msf.416-418.753 |
| Popis: | Some commercial carbonyl iron powders, from BASF AG, were characterized through their magnetic susceptibility and saturation magnetization. The saturation magnetization increases in the order: HQ < OX < CS < CC < CL SM. Although all the powders have 96% minimum of iron content, this result suggests that an investigation at higher magnetic fields, under simultaneous shear is very important. The reversibility and the reproducibility of the MR effect were satisfactory, confirming that carbonyl iron powders are good ferromagnetic materials to prepare magnetorheological fluids. |
| Databáze: | OpenAIRE |
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