Structural and phase composition modification of nanocrystalline Nd14Fe79B7 alloy during thermomagnetic measurements
Changes in the microstructure parameters, phase composition and magnetic properties of rapid quenched Nd-rich Nd14Fe79B7 alloy caused by thermomagnetic measurement (TM) were studied using XRD methods of phase analysis, crystallite size and lattice microstrain determination. The observed changes were...
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| Format: | Article |
| Language: | English |
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University of Belgrade, Technical Faculty, Bor
2009-01-01
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| Series: | Journal of Mining and Metallurgy. Section B: Metallurgy |
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| Online Access: | http://www.doiserbia.nb.rs/img/doi/1450-5339/2009/1450-53390901111T.pdf |
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| author | Talijan N. Ćosović V. Žák T. Grujić A. Stajić-Trošić J. |
| author_facet | Talijan N. Ćosović V. Žák T. Grujić A. Stajić-Trošić J. |
| author_sort | Talijan N. |
| collection | DOAJ |
| description | Changes in the microstructure parameters, phase composition and magnetic properties of rapid quenched Nd-rich Nd14Fe79B7 alloy caused by thermomagnetic measurement (TM) were studied using XRD methods of phase analysis, crystallite size and lattice microstrain determination. The observed changes were analyzed between the optimized magnetic state of this alloy and state after TM up to 800oC. Measurement of magnetic properties was carried out on the SQUID magnetometer at ambient temperature. The obtained experimental results show that the investigated alloy in the optimized magnetic state has nearly monophase composition with predominant content of hard magnetic Nd2Fe14B phase (up to 95 mass %) with mean crystallite size below 60 nm. In the state after TM, it was found that the decreased amount of Nd2Fe14B phase (75 mass%), increased amount of soft magnetic phases, predominantly of Fe7Nd5, formation of Nd-rich oxide Nd2O3 phase, as well as grain growth have caused the observed quality loss of hard magnetic properties. |
| format | Article |
| id | doaj-art-6e93a32b1ffd4630ba7376d3435bdefe |
| institution | Kabale University |
| issn | 1450-5339 |
| language | English |
| publishDate | 2009-01-01 |
| publisher | University of Belgrade, Technical Faculty, Bor |
| record_format | Article |
| series | Journal of Mining and Metallurgy. Section B: Metallurgy |
| spelling | doaj-art-6e93a32b1ffd4630ba7376d3435bdefe2025-02-02T12:48:12ZengUniversity of Belgrade, Technical Faculty, BorJournal of Mining and Metallurgy. Section B: Metallurgy1450-53392009-01-0145111111910.2298/JMMB0901111TStructural and phase composition modification of nanocrystalline Nd14Fe79B7 alloy during thermomagnetic measurementsTalijan N.Ćosović V.Žák T.Grujić A.Stajić-Trošić J.Changes in the microstructure parameters, phase composition and magnetic properties of rapid quenched Nd-rich Nd14Fe79B7 alloy caused by thermomagnetic measurement (TM) were studied using XRD methods of phase analysis, crystallite size and lattice microstrain determination. The observed changes were analyzed between the optimized magnetic state of this alloy and state after TM up to 800oC. Measurement of magnetic properties was carried out on the SQUID magnetometer at ambient temperature. The obtained experimental results show that the investigated alloy in the optimized magnetic state has nearly monophase composition with predominant content of hard magnetic Nd2Fe14B phase (up to 95 mass %) with mean crystallite size below 60 nm. In the state after TM, it was found that the decreased amount of Nd2Fe14B phase (75 mass%), increased amount of soft magnetic phases, predominantly of Fe7Nd5, formation of Nd-rich oxide Nd2O3 phase, as well as grain growth have caused the observed quality loss of hard magnetic properties.http://www.doiserbia.nb.rs/img/doi/1450-5339/2009/1450-53390901111T.pdfneodymium rich Nd-Fe-B alloythermomagnetic mesurementX-ray diffractionmagnetic properties |
| spellingShingle | Talijan N. Ćosović V. Žák T. Grujić A. Stajić-Trošić J. Structural and phase composition modification of nanocrystalline Nd14Fe79B7 alloy during thermomagnetic measurements Journal of Mining and Metallurgy. Section B: Metallurgy neodymium rich Nd-Fe-B alloy thermomagnetic mesurement X-ray diffraction magnetic properties |
| title | Structural and phase composition modification of nanocrystalline Nd14Fe79B7 alloy during thermomagnetic measurements |
| title_full | Structural and phase composition modification of nanocrystalline Nd14Fe79B7 alloy during thermomagnetic measurements |
| title_fullStr | Structural and phase composition modification of nanocrystalline Nd14Fe79B7 alloy during thermomagnetic measurements |
| title_full_unstemmed | Structural and phase composition modification of nanocrystalline Nd14Fe79B7 alloy during thermomagnetic measurements |
| title_short | Structural and phase composition modification of nanocrystalline Nd14Fe79B7 alloy during thermomagnetic measurements |
| title_sort | structural and phase composition modification of nanocrystalline nd14fe79b7 alloy during thermomagnetic measurements |
| topic | neodymium rich Nd-Fe-B alloy thermomagnetic mesurement X-ray diffraction magnetic properties |
| url | http://www.doiserbia.nb.rs/img/doi/1450-5339/2009/1450-53390901111T.pdf |
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