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Preparation and magnetic properties of nanosized amorphous ternary Fe-Ni-Co alloy powders
| Content Provider | Semantic Scholar |
|---|---|
| Author | Shafi, Kurikka V. P. M. Gedanken, Aharon Prozorov, Ruslan Révész, Ádám Lendvai, János |
| Copyright Year | 2000 |
| Abstract | Nanosized amorphous alloy powders of Fe 25 Ni 13 Co 62 , Fe 38 Ni 23 Co 39 , Fe 40 ,Ni 24 ,Co 36 , and Fe 69 Ni 9 Co 22 were prepared by sonochemical decomposition of solutions of volatile organic precursors, Fe(CO) 5 , Ni(CO) 4 , and Co(NO)(CO) 3 in decalin, under an argon pressure of 100 to 150 kPa at 273 K. The amorphous nature of these particles was confirmed by various techniques, such as scanning electron microscopy, transmission electron microscopy, electron microdiffraction, and x-ray diffractograms. Magnetic measurements indicated that the as-prepared amorphous Fe–Ni–Co alloy particles were superparamagnetic. The observed magnetization measured up to a field of 1.5 kG of the annealed Fe–Ni–Co samples (75–87 emu g −1 ) was significantly lower than that for the reported multidomain bulk particles (175 emu g −1 ), reflecting the ultrafine nature of our sample. |
| Starting Page | 332 |
| Ending Page | 337 |
| Page Count | 6 |
| File Format | PDF HTM / HTML |
| DOI | 10.1557/JMR.2000.0052 |
| Volume Number | 15 |
| Alternate Webpage(s) | http://cmp.physics.iastate.edu/prozorov/Papers/Israel/CHEMISTRY/prep_and_magnetic_properties.pdf |
| Alternate Webpage(s) | https://doi.org/10.1557/JMR.2000.0052 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |