Abstract
Ultrafine (similar to80nm). single domain Sr hexaferrite (SrM) particles with Sill additives were produced by chemical coprecipitation. The effects of the Sm3+, Sr2+ ratio on the crystallography and magnetic properties of Sm doped SrM ultrafine particles have been investigated. A very high coercity of 528 kA in (6635Oe) with a magnetisation at 1100 kA/m of 63.07 J/T kg was obtained for the sample of Sm3+/Sr2+ = (1)/(14) calcined at 850 degreesC lor 2 h in air. (C) 2002 Elsevier Science B.V. All rights reserved.
| Original language | English |
|---|---|
| Pages (from-to) | 1464-1467 |
| Number of pages | 4 |
| Journal | Journal of Magnetism and Magnetic Materials |
| Volume | 242-245 |
| DOIs | |
| Publication status | Published - 1 Apr 2002 |
Keywords
- Sm doping
- chemical coprecitation
- Sr hexaferrite
- magnetic properties