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Description
| - Iron and molybdenum powder mixture exposed to stepwise mechanical alloying using Fritsch planetary mill in air and in nitrogen atmosphere is studied by X-ray diffraction, Mössbauer spectrometry, electron microscopy, completed by magnetic measurements and differential thermal analysis. The room temperature Mössbauer spectra are interpreted in terms of three contributions. The first contribution is associated with the FeMo nanograin core, which is similar to the FeMo bulk alloy of the same composition, i.e., a ferromagnetic solid solution of Mo in Fe. The increasing milling time contributes to a decrease in grain size. It results in a decrease of the volume fraction of the grain cores and simultaneously to an increase in a volume fraction of the second and the third contributions ascribed to highly defected surface zones and very close surface layers influenced by the atmosphere used during milling. Their behavior can be ferromagnetic and/or paramagnetic, depending on an amount of defects and of oxygen or nitrogen atoms present in the milling atmosphere and influencing the formation of the FeMo+N(+O) mixture.
- Iron and molybdenum powder mixture exposed to stepwise mechanical alloying using Fritsch planetary mill in air and in nitrogen atmosphere is studied by X-ray diffraction, Mössbauer spectrometry, electron microscopy, completed by magnetic measurements and differential thermal analysis. The room temperature Mössbauer spectra are interpreted in terms of three contributions. The first contribution is associated with the FeMo nanograin core, which is similar to the FeMo bulk alloy of the same composition, i.e., a ferromagnetic solid solution of Mo in Fe. The increasing milling time contributes to a decrease in grain size. It results in a decrease of the volume fraction of the grain cores and simultaneously to an increase in a volume fraction of the second and the third contributions ascribed to highly defected surface zones and very close surface layers influenced by the atmosphere used during milling. Their behavior can be ferromagnetic and/or paramagnetic, depending on an amount of defects and of oxygen or nitrogen atoms present in the milling atmosphere and influencing the formation of the FeMo+N(+O) mixture. (en)
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Title
| - Nanostructure, Composition, and Magnetic Behavior of Mechanically Alloyed Fe-Mo
- Nanostructure, Composition, and Magnetic Behavior of Mechanically Alloyed Fe-Mo (en)
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skos:prefLabel
| - Nanostructure, Composition, and Magnetic Behavior of Mechanically Alloyed Fe-Mo
- Nanostructure, Composition, and Magnetic Behavior of Mechanically Alloyed Fe-Mo (en)
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skos:notation
| - RIV/68081723:_____/13:00391735!RIV14-GA0-68081723
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
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http://linked.open...iv/cisloPeriodika
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/68081723:_____/13:00391735
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - Nanostructured material; Mechanical alloying; Magnetic properties; Grain core; Defects (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...odStatuVydavatele
| - DE - Spolková republika Německo
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http://linked.open...ontrolniKodProRIV
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http://linked.open...i/riv/nazevZdroje
| - Journal of Superconductivity and Novel Magnetism
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...vavai/riv/projekt
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http://linked.open...UplatneniVysledku
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http://linked.open...v/svazekPeriodika
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http://linked.open...iv/tvurceVysledku
| - Buršík, Jiří
- Turek, Ilja
- Jirásková, Yvonna
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http://linked.open...ain/vavai/riv/wos
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issn
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number of pages
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http://bibframe.org/vocab/doi
| - 10.1007/s10948-012-2049-4
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