Hyperfine interactions and some magnetic properties of nanocrystalline Co
40 Fe 50 Ni 10 and Co 50 Fe 45 Ni 5 alloys prepared by mechanical synthesis and subsequently heat treated
T. Pikula , Dariusz Oleszak , Marek Pękała
Co 40 Fe 50 Ni 10 and Co 50 Fe 45 Ni 5 ternary alloys were prepared by mechanical alloying method. To check the stability of their structure thermal treatment was applied subsequently. As X-ray diffraction studies proved the final products of milling were the solid solutions with bcc lattice and the average grain sizes ranged of tens of nanometers. After heating of the Co 50 Fe 45 Ni 5 alloy up to 993 K the mixture of two solid solutions with bcc and fcc lattices was formed. In other cases thermal treatment did not change the type of the crystalline lattice. Mössbauer spectroscopy revealed hyperfine magnetic field distributions which reflected the different possible atomic surroundings of 57 Fe isotopes. Results of the macroscopic magnetic measurements proved that both investigated alloys had relatively good soft magnetic properties.
|Journal series||Acta Physica Polonica A, ISSN 0587-4246, (A 15 pkt)|
|Publication indicators||= 1; : 2011 = 0.453; : 2011 = 0.444 (2) - 2011=0.404 (5)|
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