Partner: T. Kaczor

University of Technology and Humanities in Radom (PL)

Ostatnie publikacje
1.Brzózka K., Krajewski M., Szumiata T., Górka B., Gawroński M., Kaczor T., Lin W.S., Lin H.M., Phase Evolution of Iron Nanoparticles Subjected to Thermal Treatment, ACTA PHYSICA POLONICA A, ISSN: 0587-4246, DOI: 10.12693/APhysPolA.134.1015, Vol.134, No.5, pp.1015-1020, 2018

Streszczenie:

Magnetic nanoparticles based on iron or iron oxides represent an excellent nanomaterial in respect of their fundamental research as well as numerous applications. This work presents a Mössbauer study of the influence of thermal treatment on the structure and phase composition of iron nanoparticles fabricated via a simple reduction reaction. Identification of iron-containing phases has been carried out for the series of samples annealed at different temperatures ranging between 200 C and 800 C. Both crystalline and amorphous iron as well as variety of iron oxides have been detected. It has been proved that the nanoparticles annealed at 500 C show superparamagnetic behavior as a result of ultrafine sizes of crystallites of iron oxides that arise in the oxidation processes.

Afiliacje autorów:

Brzózka K.-University of Technology and Humanities in Radom (PL)
Krajewski M.-IPPT PAN
Szumiata T.-other affiliation
Górka B.-other affiliation
Gawroński M.-other affiliation
Kaczor T.-University of Technology and Humanities in Radom (PL)
Lin W.S.-Tatung University (TW)
Lin H.M.-Tatung University (TW)
15p.