The influence of thermal annealing on structure and oxidation of iron nanowires
Krajewski Marcin,
Brzózka Katarzyna,
Górka Bogumił,
Lin Wei-Syuan,
Lin Hong-Ming,
Szumiata Tadeusz,
Gawroński Michał,
Wasik Dariusz
Affiliations
Krajewski Marcin
Institute of Experimental Physics, Faculty of Physics, University of Warsaw, 69 Hoża Str., 00-681 Warsaw, Poland
Brzózka Katarzyna
Department of Physics, Faculty of Mechanical Engineering, University of Technology and Humanities in Radom, 54 Krasickiego Str., 26-600 Radom, Poland, Tel.: +48 48 361 7846, Fax: +48 48 361 7075
Górka Bogumił
Department of Physics, Faculty of Mechanical Engineering, University of Technology and Humanities in Radom, 54 Krasickiego Str., 26-600 Radom, Poland, Tel.: +48 48 361 7846, Fax: +48 48 361 7075
Lin Wei-Syuan
Department of Materials Engineering, Tatung University, Taipei, 104, Taiwan, R.O.C.
Lin Hong-Ming
Department of Materials Engineering, Tatung University, Taipei, 104, Taiwan, R.O.C.
Szumiata Tadeusz
Department of Physics, Faculty of Mechanical Engineering, University of Technology and Humanities in Radom, 54 Krasickiego Str., 26-600 Radom, Poland, Tel.: +48 48 361 7846, Fax: +48 48 361 7075
Gawroński Michał
Department of Physics, Faculty of Mechanical Engineering, University of Technology and Humanities in Radom, 54 Krasickiego Str., 26-600 Radom, Poland, Tel.: +48 48 361 7846, Fax: +48 48 361 7075
Wasik Dariusz
Institute of Experimental Physics, Faculty of Physics, University of Warsaw, 69 Hoża Str., 00-681 Warsaw, Poland
Raman spectroscopy as well as Mössbauer spectroscopy were applied in order to study the phase composition of iron nanowires and its changes, caused by annealing in a neutral atmosphere at several temperatures ranging from 200°C to 800°C. As-prepared nanowires were manufactured via a simple chemical reduction in an external magnetic field. Both experimental techniques proved formation of the surface layer covered by crystalline iron oxides, with phase composition dependent on the annealing temperature (Ta). At higher Ta, hematite was the dominant phase in the nanowires.
