Volume 34, Issue 1 (Journal of Advanced Materials-Spring 2015)                   2015, 34(1): 35-43 | Back to browse issues page


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Abstract:   (8907 Views)

In the present investigation, spherical nanoparticles of nickel ferrite with uniform structure were successfully produced by hydrothermal method in the presence of polyethylene glycol (PEG) as a polymeric surfactant at 180°C for 12 hour aging time and the effects of the synthesis time, temperature and surfactant were investigated. According to the X-ray analysis, conversion of nickel oxide and hematite to nickel ferrite was a way to produce NiFe2O4. At 140‌°C, agglomerated particles without specific shape were formed, but at 180°C particles were homogenous with spherical shape. Saturation magnetization increased by increasing the hydrothermal process aging time.

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Type of Study: Research | Subject: Surface engineering and coatings
Received: 2015/06/28 | Accepted: 2015/06/28 | Published: 2015/06/28