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      https://www.ias.ac.in/article/fulltext/boms/034/05/1027-1031

    • Keywords

       

      Li–Ti mixed ferrites; combustion synthesis; hysteresis.

    • Abstract

       

      Polycrystalline samples of the mixed nanoferrites, Li0.5+0.5𝑥Ti𝑥Fe2.5−1.5xO4 (0.02 ≤ 𝑥 ≤ 0.1), were prepared by combustion method at lower temperatures compared to the conventional high temperature sintering for the first time at low temperatures, using PEG which acts as a new fuel and oxidant. XRD patterns reveal a singlephase cubic spinel structure. The as synthesized Li–Ti ferrites are in nanocrystalline phase. The crystallite size was found to be in the range 16–27 nm. SEM images reveal rod-like morphology in all the samples with a discontinuous grain growth. The B–H loops have been traced using VSM technique, for all the compositions, at room temperature and the hysteresis parameters are calculated. Saturation magnetization decreases with increase in Ti content due to the fact that the Ti4+ ion, which is a non-magnetic ion, replaces a magnetic Fe3+ ion. The hysteresis loops show clear saturation at an applied field of ±10 kOe and the loops are highly symmetric in nature. The cation distribution is known indirectly by using saturation magnetization values.

    • Author Affiliations

       

      R M Sangshetti1 V A Hiremath2 V M Jali3

      1. Department of Physics, P.D.A. College of Engineering, Gulbarga 585 102, India
      2. Department of Chemistry, P.D.A. College of Engineering, Gulbarga 585 102, India
      3. Department of Physics, Gulbarga University, Gulbarga 585 106, India
    • Dates

       
  • Bulletin of Materials Science | News

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