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Synthesis of Fe(Ni) nanoparticles by calcination and hydrogen reduction of metal nitrate powders
- Issue Date
- May-2010
- Publisher
- Royal Swedish Academy of Sciences
- Keywords
- PERMEABILITY; COMPOSITE; FE
- Citation
- Physica Scripta, v.T139, pp.1 - 5
- Indexed
- SCIE
SCOPUS
- Journal Title
- Physica Scripta
- Volume
- T139
- Start Page
- 1
- End Page
- 5
- ISSN
- 0031-8949
- Abstract
- The calcination and hydrogen reduction behavior of Fe- and Ni-nitrate powders has been investigated by using thermal analysis and microstructure observation. Fe-oxide/NiO composite powder was prepared by calcination at 350 degrees C for 2 h of Fe- and Ni-nitrate. Microstructural observation revealed that FeNi(3) particles with an average size of 40 nm were formed by hydrogen reduction at 320 degrees C of calcined powders. Changes of the DSC curve and the XRD pattern with the increase in reduction temperature were explained as presumably due to the phase transformation of Fe(Ni) powders.
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