Formation of epsilon-Fe2O3 phase by the heat treatment of alpha-Fe2O3/SiO2 nanocomposite
Apstrakt
Starting from a nanocomposite consisting of 4 nm hematite nanoparticles embedded in a silica matrix (30 wt.% hematite) and by applying heat treatments at increasing temperatures up to 1050 degrees C, gradual formation of epsilon-Fe2O3 phase was obtained. Besides representing a new synthesis route of epsilon-Fe2O3 phase, the results obtained in this work indicate that under certain conditions hematite nanoparticles are not thermally stable. Hence, like other ferric oxide polymorphs, nanosized hematite can undergo thermally triggered, size-induced structural phase transitions. (C) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
Ključne reči:
nanocrystalline materials / phase transformations / High-resolution electron microscopy (HRTEM) / magnetic propertiesIzvor:
Scripta Materialia, 2008, 58, 8, 703-706
DOI: 10.1016/j.scriptamat.2007.12.009
ISSN: 1359-6462
WoS: 000254197600022
Scopus: 2-s2.0-39149113439
Kolekcije
Institucija/grupa
VinčaTY - JOUR AU - Tadić, Marin AU - Spasojević, Vojislav AU - Kusigerski, Vladan AU - Marković, Dragana AU - Remskar, Maja PY - 2008 UR - https://vinar.vin.bg.ac.rs/handle/123456789/3384 AB - Starting from a nanocomposite consisting of 4 nm hematite nanoparticles embedded in a silica matrix (30 wt.% hematite) and by applying heat treatments at increasing temperatures up to 1050 degrees C, gradual formation of epsilon-Fe2O3 phase was obtained. Besides representing a new synthesis route of epsilon-Fe2O3 phase, the results obtained in this work indicate that under certain conditions hematite nanoparticles are not thermally stable. Hence, like other ferric oxide polymorphs, nanosized hematite can undergo thermally triggered, size-induced structural phase transitions. (C) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. T2 - Scripta Materialia T1 - Formation of epsilon-Fe2O3 phase by the heat treatment of alpha-Fe2O3/SiO2 nanocomposite VL - 58 IS - 8 SP - 703 EP - 706 DO - 10.1016/j.scriptamat.2007.12.009 ER -
@article{ author = "Tadić, Marin and Spasojević, Vojislav and Kusigerski, Vladan and Marković, Dragana and Remskar, Maja", year = "2008", abstract = "Starting from a nanocomposite consisting of 4 nm hematite nanoparticles embedded in a silica matrix (30 wt.% hematite) and by applying heat treatments at increasing temperatures up to 1050 degrees C, gradual formation of epsilon-Fe2O3 phase was obtained. Besides representing a new synthesis route of epsilon-Fe2O3 phase, the results obtained in this work indicate that under certain conditions hematite nanoparticles are not thermally stable. Hence, like other ferric oxide polymorphs, nanosized hematite can undergo thermally triggered, size-induced structural phase transitions. (C) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.", journal = "Scripta Materialia", title = "Formation of epsilon-Fe2O3 phase by the heat treatment of alpha-Fe2O3/SiO2 nanocomposite", volume = "58", number = "8", pages = "703-706", doi = "10.1016/j.scriptamat.2007.12.009" }
Tadić, M., Spasojević, V., Kusigerski, V., Marković, D.,& Remskar, M.. (2008). Formation of epsilon-Fe2O3 phase by the heat treatment of alpha-Fe2O3/SiO2 nanocomposite. in Scripta Materialia, 58(8), 703-706. https://doi.org/10.1016/j.scriptamat.2007.12.009
Tadić M, Spasojević V, Kusigerski V, Marković D, Remskar M. Formation of epsilon-Fe2O3 phase by the heat treatment of alpha-Fe2O3/SiO2 nanocomposite. in Scripta Materialia. 2008;58(8):703-706. doi:10.1016/j.scriptamat.2007.12.009 .
Tadić, Marin, Spasojević, Vojislav, Kusigerski, Vladan, Marković, Dragana, Remskar, Maja, "Formation of epsilon-Fe2O3 phase by the heat treatment of alpha-Fe2O3/SiO2 nanocomposite" in Scripta Materialia, 58, no. 8 (2008):703-706, https://doi.org/10.1016/j.scriptamat.2007.12.009 . .