The influence of thermal annealing on structure and oxidation of iron nanowires

Autor: Krajewski Marcin, Brzózka Katarzyna, Górka Bogumił, Lin Wei-Syuan, Lin Hong-Ming, Szumiata Tadeusz, Gawroński Michał, Wasik Dariusz
Jazyk: angličtina
Rok vydání: 2015
Předmět:
Zdroj: Nukleonika, Vol 60, Iss 1, Pp 87-91 (2015)
Druh dokumentu: article
ISSN: 0029-5922
06427944
DOI: 10.1515/nuka-2015-0004
Popis: 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.
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