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    • Influence of fuel ratios on auto combustion synthesis of barium ferrite nano particles

      D Bahadur S Rajakumar Ankit Kumar

      Volume 118 Issue 1 January 2006 pp 15-21

    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/jcsc/118/01/0015-0021

    • Keywords

       

      Nano particle synthesis; autocombustion; fuel ratios; barium ferrite

    • Abstract

       

      Single-domain barium ferrite nano particles have been synthesized with narrow particle-size distribution using an auto combustion technique. In this process, citric acid was used as a fuel. Ratios of cation to fuel were maintained variously at 1:1, 1:2 and 1:3. The pH was 7 in all cases. Of all three cases, a cation to citric acid ratio of 1:2 gives better yield in the formation of crystalline and single domain particles with a narrow range of size distribution. Most particles are in the range of 80 to 100 nm. Maximum magnetization and coercivity values are also greater for 1:2 ratios. These values measured at room temperature are found to be 55 emu/gram and 5000 Oe respectively. XPS and ESR studies support the results.

    • Author Affiliations

       

      D Bahadur1 S Rajakumar1 Ankit Kumar1

      1. Department of Metallurgical Engineering and Materials Science, Indian Institute of Technology, Mumbai - 400 076

    • Dates

       
      Published
      January 2006

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