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Ataie, A., Sabarou, H. (2011). Chemico- thermal synthesis of nano-structured cobalt with distinct magnetic property. Journal of Nanostructures, 1(1), 7-13. doi: 10.7508/jns.2011.01.002
A. Ataie; H. Sabarou. "Chemico- thermal synthesis of nano-structured cobalt with distinct magnetic property". Journal of Nanostructures, 1, 1, 2011, 7-13. doi: 10.7508/jns.2011.01.002
Ataie, A., Sabarou, H. (2011). 'Chemico- thermal synthesis of nano-structured cobalt with distinct magnetic property', Journal of Nanostructures, 1(1), pp. 7-13. doi: 10.7508/jns.2011.01.002
Ataie, A., Sabarou, H. Chemico- thermal synthesis of nano-structured cobalt with distinct magnetic property. Journal of Nanostructures, 2011; 1(1): 7-13. doi: 10.7508/jns.2011.01.002

Chemico- thermal synthesis of nano-structured cobalt with distinct magnetic property

Article 2, Volume 1, Issue 1, Winter 2011, Page 7-13  XML PDF (523.23 K)
Document Type: Research Paper
DOI: 10.7508/jns.2011.01.002
Authors
A. Ataie ; H. Sabarou
School of Metallurgy and Materials Engineering, University of Tehran, Tehran.
Abstract
The synthesis of nano- structured cobalt through a controlled chemical process followed by heat treating at various temperatures is studied. The product is characterized by ICP, XRD, FESEM , and TEM, indicating that the as- synthesized particles have an amorphous structure with 1.76 for Co/B ratio, an average size of 50 nm. The transformation of intermediate phases into single phase nano- crystalline metallic cobalt during the heat treatment is investigated by DSC analysis. The mean crystallite size of obtained cobalt was 30 nm. The decrease in coercivity (4344.93A/mf) with the sharp increase in saturation magnetization (1.41×10-4 Am2/kg) presents excellent ferro- magnetic properties for nano- crystallite cobalt.
Keywords
Chemical synthesis; Nano-Structured material; Magnetic material; Cobalt
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