Oxidation protection of magnetic iron particles by ultrathin layers of silanes
| Autor: | P. Poganiuch, H. Keller, H. Rengel |
|---|---|
| Rok vydání: | 1996 |
| Předmět: |
chemistry.chemical_classification
Silanes Materials science equipment and supplies Condensed Matter Physics Silane Electronic Optical and Magnetic Materials Atmosphere chemistry.chemical_compound Magnetization Adsorption chemistry Chemical engineering Molecule lipids (amino acids peptides and proteins) Hot and humid Alkyl |
| Zdroj: | Journal of Magnetism and Magnetic Materials. 155:101-103 |
| ISSN: | 0304-8853 |
| DOI: | 10.1016/0304-8853(95)00670-2 |
| Popis: | Trimethoxysilanes with long alkyl chains (C12–C18) and tetramethoxysilane are adsorbed on iron pigments. The silane molecules adsorb strongly to the iron pigments and form ultrathin layers on the surface. Upon exposure to hot and humid atmosphere, these layers reduce the loss of magnetization from 6.3 nT m3 g−1 down to approximately 1.1 nT m3 g−1. The loss of magnetization decreases with increasing layer thickness. The best oxidation protection is found for tetramethoxysilane. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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