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Two-stage method of synthesis of ultrafine powder of α-phase metallic cobalt

  • Irina Nikolaenko , Aleksey Pavlov and Gennadii Shveikin
Published/Copyright: November 3, 2016
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 107 Issue 11

Abstract

In this article a new method of synthesizing ultrafine powder of α-phase metallic cobalt is proposed, synthesis by a combination of two methods, liquid-phase precipitation on a carbon support and low-temperature microwave heat treatment in the stream of argon. An entire spectrum of intermediates obtained during thermolysis and reduction of cobalt precursors during heat treatment by electromagnetic field to the final product is presented. Sample structure, morphology and particle size as well as phase composition and the size of specific surface areas are shown.

Keywords: Liquid-phase precipitation; Microwave synthesis; Microstructure; Morphology; Metallic cobalt
*Correspondence address, Irina Vladimirovna Nikolaenko, Institute of Solid State Chemistry, Ural Branch of the Russian Academy of Sciences, 91, Pervomaiskaya st., 620990, Yekaterinburg, Russia, Tel.: +7(343)3623396, Fax: +7(343)3744495, E-mail:

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Received: 2016-05-24
Accepted: 2016-07-25
Published Online: 2016-11-03
Published in Print: 2016-11-10

© 2016, Carl Hanser Verlag, München

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https://doi.org/10.3139/146.111431
Keywords for this article
Liquid-phase precipitation; Microwave synthesis; Microstructure; Morphology; Metallic cobalt

Articles in the same Issue

  1. Contents
  2. Contents
  3. Original Contributions
  4. In-situ annealing and computation study of cube texture development in a commercial aluminum alloy
  5. Dislocation dynamics modeling of plastic deformation in single-crystal copper at high strain rates
  6. Investigation of mechanical properties of tubular aluminum foams
  7. Dependence of microstructure, microhardness, tensile strength and electrical resistivity on growth rates for directionally solidified Zn-Al-Sb eutectic alloy
  8. Effects of temperature on fatigue limits and fracture morphologies of 40Cr steels formed by warm extrusion
  9. Synthesis of an oxidation-resistant SiC coating on graphite and modeling analysis with thermodynamics calculations
  10. Improved corrosion inhibition of 3-amino-1,2,4-triazole on mild steel electrode in HCl solution using surface nanocrystallization
  11. Chunky graphite formation in ductile cast irons: effect of silicon, carbon and rare earths
  12. Fabrication of 3D porous MoS2–GO nanocomposite monolith as a promising adsorbent
  13. Short Communications
  14. Two-stage method of synthesis of ultrafine powder of α-phase metallic cobalt
  15. Developing a multifunctional bio-ceramics composite based on β-tricalcium phosphate working as a single carrier for calcium supplement and low-dose drugs
  16. DGM News
  17. DGM News
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