Production of magnetic ferrite particles embedded in a non-conductive oxide

B. R. Martínez, H. A. Calderón, H. Yee-Madeira, J. G. Cabañas, M. Umemoto, K. Tsuchiya

Research output: Contribution to journalConference articlepeer-review

Abstract

The system NixZn(0.8-x)Cu0.2Fe 2O4 with compositions X = 0.3, 0.5 and 0.7 has been produced by means of mechanical milling. An ultra-high energy mill produces the development of a solid solution with cubic structure, in Fe-rich containing mixtures. The solid solution can be recognized from milling times as short as 25 h but after 61 h of milling this phase becomes preponderant. Mössbauer spectroscopy and TEM show the development of the solid solution as a function of milling time, although in some cases the spinel phase (ferrite) is also present in the samples. The development of hysteresis loops as a function of milling time, can be interpreted on the basis of the phases contained in the samples. Saturation magnetization values indicate the progressive formation of the solid solution as the milling time increases.

Translated title of the contributionProducción de partículas de ferrita magnética incrustadas en un óxido no conductor
Original languageEnglish
Pages (from-to)733-738
Number of pages6
JournalJournal of Metastable and Nanocrystalline Materials
Volume15-16
DOIs
StatePublished - 2003
EventProceedings of the 9th International Symposium on Metastable Mechanically Alloyed and Nanocrystalline Materials (ISMANAM-2002) - Seoul, Korea, Republic of
Duration: 8 Sep 200212 Sep 2002

Keywords

  • Ferrite
  • Magnetic Properties
  • Mechanical Alloying
  • Nanostructured Material

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