H-field induced changes in Ni-Zn ferrites by single mode microwave irradiation

Ramesh Peelamedu, Dinesh Agrawal, Rustum Roy, Stephen M. Copley

Research output: Contribution to conferencePaperpeer-review


Ni1-xZnxFe2O4 with "x" values varying from x = 0,0.2, 0.4, 0.6, 0.8 and 1.0 were prepared using high purity NiO, ZnO and Fe3O4 in stoichiometric proportions. Sintering of these pellets was carried out in a conventional furnace at 1275°C, for 30 minutes. The sintered samples were post treated in a microwave H-field, and the structural and magnetic property differences between H-field treated and untreated samples were compared. The structural disorder was studied by XRD and Raman spectroscopy, and the magnetic property changes were studied by carrying out B-H measurement. Changes in crystal structure, magnetization, coercivity, and saturation magnetization values were determined. The results are explained based on our current understanding of magnetic decrystallization.

Original languageEnglish (US)
Number of pages1
StatePublished - 2004
Event2004 AIChE Annual Meeting - Austin, TX, United States
Duration: Nov 7 2004Nov 12 2004


Other2004 AIChE Annual Meeting
Country/TerritoryUnited States
CityAustin, TX

All Science Journal Classification (ASJC) codes

  • General Engineering

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