Surface properties of Fe76Mo8Cu1B15 alloy after annealing

0097623 - ÚFM 2008 RIV NL eng J - Journal Article
Miglierini, M. - Kaňuch, T. - Jirásková, Yvonna - Mašláň, M. - Zbořil, R. - Vůjtek, M.
Surface properties of Fe76Mo8Cu1B15 alloy after annealing.
[Povrchové vlastnosti slitiny Fe76Mo8Cu1B15 po žíhání.]
Hyperfine Interactions. Roč. 165, č. 1-4 (2005), s. 75-80. ISSN 0304-3843.
[ICAME 2005. Montpellier, 05.09.2005-09.09.2005]
R&D Projects: GA ČR GA202/05/2111
Institutional research plan: CEZ:AV0Z20410507
Keywords : Mössbauer effect * nanoscale materials * magnetic properties of nanostructures
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 0.254, year: 2005

NANOPERM-type alloy Fe76Mo8Cu1B15 is investigated in amorphous and in partially crystallized state. Samples were prepared by one hour isothermal annealing in vacuum at temperatures ranging from 330 oC up to 700 oC. Bulk and surface microstructural characteristics were studied using transmission and conversion electron Mössbauer effect techniques, respectively. Surface features were checked by the help of atomic force microscopy. Presence of nanocrystalline bcc-Fe phase was detected during the first crystallization stage. The crystallization process starts at 450 oC and it is more pronounced in surface regions than in the bulk. With progressing crystallization, hyperfine parameters especially of the amorphous residual phase are altered. Distinctions in surface morphology are revealed between wheel and air side of the ribbon-shaped samples.

V práci jsou studovány vzorky materiálu typu NANOPERM Fe76Mo8Cu1B15 v amorfním a nanokrystalickém stavu pomocí Mössbauerovy spektroskopie a to jak na povrchu, tak v objemu. Počátek krystalizace je při 450°C.
Permanent Link: http://hdl.handle.net/11104/0156722