Details

Autor(en) / Beteiligte

• Hernández, P.
• de Francisco, C.
• Muñoz, J.M.
• Iñiguez, J.
• Torres, L.
• Zazo, M.

Titel

Influence of sintering atmosphere on the magnetic after-effect in strontium ferrites

Ist Teil von

• Journal of magnetism and magnetic materials, 1996-05, Vol.157-158, p.123-124

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

1996

Quelle

Elsevier Journal Backfiles on ScienceDirect (DFG Nationallizenzen)

Beschreibungen/Notizen

• The relaxation of the initial permeability after sample demagnetization has been measured in polycrystalline strontium ferrite samples with nominal composition SrO · 6Fe2O3 (M-phase), sintered under different oxygen pressures, and has been represented by isochronal curves. Very different behaviours are observed. With lower oxygen pressures the isochronal spectra are similar to the curves obtained for barium ferrites, with relaxation peaks at room temperature. In higher oxygen partial pressures, the relaxation peaks are found at lower temperatures.