Zinc ferrite nanoparticles as perspective functional materials for applications in casting technologies

Autor:	A. Kmita, J. Żukrowski, K. Hodor, H. Smogór, M. Sikora
Jazyk:	angličtina
Rok vydání:	2017
Předmět:	casting zinc ferrite nanoparticles Mössbauer Spectroscopy magnetic nanoparticles thermal decomposition Mining engineering. Metallurgy TN1-997
Zdroj:	Metalurgija, Vol 56, Iss 1-2, Pp 29-32 (2017)
Druh dokumentu:	article
ISSN:	0543-5846 1334-2576
Popis:	In this article it discuss on possible application of magnetic oxide nanoparticles, namely non-stoichiometric zinc ferrite nanoparticles as a functionalizing agent in foundry processes. Thermal analysis showed a weight loss of the sample at 1 273 K in an amount of 7,7 %, which is a result of the following processes taking place in different temperature ranges. Upon its thermal treatment Zn0,4Fe2,6O4 decomposes to zinc oxide and iron (III) oxide (first stage) and next to iron (II,III) oxide and oxygen (second stage). The degree of decomposition was expressed as Fe2+ / Fetotal. Mössbauer spectroscopy showed that the over 30 % of Fe3+ present in starting material was reduced to Fe2+.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/1f312a687b30467ca9dfaf91416630e6 Zobrazit plný text záznamu View record in DOAJ Plný text ve formátu PDF