Synthesis, characterization and amorphization of mechanically alloyed Fe75Si12Ti6B7 and Fe73Si15Ti5B7 powders
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F22%3A00358686" target="_blank" >RIV/68407700:21340/22:00358686 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1007/s10853-022-07404-4" target="_blank" >https://doi.org/10.1007/s10853-022-07404-4</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s10853-022-07404-4" target="_blank" >10.1007/s10853-022-07404-4</a>
Alternative languages
Result language
angličtina
Original language name
Synthesis, characterization and amorphization of mechanically alloyed Fe75Si12Ti6B7 and Fe73Si15Ti5B7 powders
Original language description
In this study, Fe75Si12Ti6B7 and Fe73Si15Ti5B7 (wt. %) alloy powders were synthesized from pure elemental powders by a mechanical alloying (MA) method under argon atmosphere. The evolution in particles morphology, chemical composition, crystalline structure, magnetic and hyperfine proprieties of the mixture elements during MA(0–80 h) was investigated by scanning electron microscopy attached with energy-dispersive spectroscopy, X-ray diffraction (XRD), vibrating sample magnetometer and Mössbauer spectroscopy (MS). The Rietveld refinement of the XRD pattern of the samples milled 5 h shows the formation of several structures: Fe3Si, α-Fe nanostructured, Fe2Ti and Fe2B, in addition, that the structure became much more amorphous together with increasing milling time at 80 h. The thermal stability of powders milled was characterized by differential scanning calorimetry (DSC). The annealing of samples milled 80 h shows that the crystallization of the amorphous phases and the activation energy determined by using Kissinger's equation was 462.23 ± 16.11 kJ mol-1 and 798.43 ± 16.12 kJ mol-1 for the Fe73Si15Ti5B7 and Fe75Si12Ti6B7, respectively. Moreover, the results from XRD and DSC for 80 h of milling were approved by the Mössbauer spectroscopy, and the spectra revealed that the sample Fe73Si15Ti5B7 is fully amorphous, but the sample Fe75Si12Ti6B7 still contains some of Fe with a 2.8% fraction non- detected by XRD. The saturation magnetization (Ms) and coercivity values were of about 151 emu/g, 38.5 G for Fe73Si15Ti5B7 and 171.6 emu/g, 35 G for Fe75Si12Ti6B7, respectively, after 80 h of milling.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20501 - Materials engineering
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Materials Science
ISSN
0022-2461
e-ISSN
1573-4803
Volume of the periodical
57
Issue of the periodical within the volume
June
Country of publishing house
US - UNITED STATES
Number of pages
16
Pages from-to
12600-12615
UT code for WoS article
000819283800002
EID of the result in the Scopus database
2-s2.0-85133201151