Naberezhnov, A.; Nacke, B.; Nikanorov, A.; Koroleva, E.; Vanina, P. et al.: Properties and structure of magnetic alkali-borosilicate glasses prepared by induction melting. In: Journal of Physics: Conference Series 1134 (2018), Nr. 1, 12043. DOI:
https://doi.org/10.1088/1742-6596/1134/1/012043
Zusammenfassung: |
In this contribution we present the first results devoted to studies of structure, morphology and magnetic properties of magnetic alkali-borosilicate glasses prepared by induction melting. This procedure permits to fabricate a large amount of two-phase glasses with magnetic properties due to self-assembled magnetite (Fe3O4) nanoparticles and with branched dendrite-like structure of channels formed by a chemical unstable phase. After withdrawal of this phase we have obtained the porous matrices with two different average pore diameters: ∼6 nm and ∼60 nm. The empty pore spaces in these matrices were filled by ferroelectrics KH2PO4 from water solution. It is shown that application of external magnetic fields above B=1 T results in a linear growth of the ferroelectric phase transition temperature TC on 6 K at B=10 T due to magnetostrictive properties of porous matrices.
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Lizenzbestimmungen: |
CC BY 3.0 Unported - https://creativecommons.org/licenses/by/3.0/
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Publikationstyp: |
Article |
Publikationsstatus: |
publishedVersion |
Erstveröffentlichung: |
2018 |
Schlagwörter (englisch): |
Borosilicate glass, Ferroelectric materials, Iron oxides, Magnetic properties, Magnetite, Magnetite nanoparticles, Melting, Nanostructured materials, Alkali borosilicate glass, Dendrite-like structure, External magnetic field, Ferroelectric phase transition temperatures, Induction melting, Magnetostrictive properties, Porous matrixs, Water solutions, Nanomagnetics
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Fachliche Zuordnung (DDC): |
530 | Physik
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