Barium ferrite particulates prepared by a salt-melt method
| Autor: | M.C. Deng, Tsung-Shune Chin, S.L. Hsu |
|---|---|
| Rok vydání: | 1993 |
| Předmět: |
chemistry.chemical_classification
Materials science Coprecipitation Analytical chemistry Salt (chemistry) Flux Coercivity Particulates Condensed Matter Physics Electronic Optical and Magnetic Materials law.invention chemistry.chemical_compound Nuclear magnetic resonance chemistry law Calcination Barium ferrite |
| Zdroj: | Journal of Magnetism and Magnetic Materials. 120:64-68 |
| ISSN: | 0304-8853 |
| Popis: | Barium ferrite particulates have been prepared by coprecipitation and calcination in a flux of NaCl-KCl. It was found that a flux containing more than 30 wt% KCl tends to seriously deteriorate the magnetic properties of resultant perticulates. The flux with 10 wt% KCl or less showed promising results. A Ba(CoZr) 0.75 Fe 10.5 O 19 particulate showed the best properties, i.e., a saturation magnetization of 68.5, a squareness ratio of 0.49, and a coercivity of 1280 Oe, when calcined in NaCl at 900°C for 4 h. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|