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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Michalski, Bartosz
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (13/13 displayed)
- 2022In situ alloying of NiTi: Influence of laser powder bed fusion (LBPF) scanning strategy on chemical compositioncitations
- 2022Heat Treatment of NiTi Alloys Fabricated Using Laser Powder Bed Fusion (LPBF) from Elementally Blended Powderscitations
- 2021Effect of severe deformation on the microstructure and properties of Nd-Fe-B powders caused by hydrostatic extrusioncitations
- 2019Monitoring of the hydrogen decrepitation process by acoustic emissioncitations
- 2019Effect of silver content in Zr<inf>55</inf>Cu<inf>30</inf>Ni<inf>5</inf>Al<inf>10−x</inf>Ag<inf>X</inf> alloys on the supercooled liquid stability analysed by TTT diagrams
- 2017Complex Characteristics of Sintered Nd–Fe–B Magnets in Terms of Hydrogen Based Recyclingcitations
- 2016Hydrogen disproportionation phase diagram and magnetic properties for Nd<inf>15</inf>Fe<inf>79</inf>B<inf>6</inf> alloycitations
- 2013Effect of microstructure changes on magnetic properties of spark plasma sintered Nd-Fe-B powderscitations
- 2012Processing the Nd-Fe-B powders by high temperature millingcitations
- 2012Magnetic properties of Nd 12Fe 82B 6 and Nd 14Fe 80B 6 powders obtained by high temperature milling
- 2011Characterization of nanostructured Nd-Fe-Al permanent magnetscitations
- 2011Correlation between the size of Nd<inf>60</inf>Fe<inf>30</inf>Al <inf>10</inf> sample, cast by various techniques and its coercivity
- 2008Effect of processing parameters on the structure and magnetic properties of Nd60Fe30Al10 alloycitations
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article
Effect of microstructure changes on magnetic properties of spark plasma sintered Nd-Fe-B powders
Abstract
In this study the SPS method was applied for low RE content (8,5% at.) and high RE content(13,5 % at.) MQ powders. The powders were sintered in a wide range of temperature, for 5 min., underpressure of 35 MPa. The low RE content grade, densified reluctantly and gained the density close to thetheoretical value only for 850 oC. The coercivity decreased gradually with increasing sinteringtemperature. On the other hand, the densification of the higher RE content grade powder occurred mucheasier and the coercivity, close to the theoretical value, was achieved already at 650 oC. The coercivity ofthis material also decreased with increasing sintering temperature. Microstructural studies revealed thatthe SPS sintering process leads to partial decomposition of the Nd2Fe14B phase. The proportion of theRE-rich and iron phases increases parallel to the increasing sintering temperature. On the basis of thecurrent results one can conclude that fabrication of high density MQ powders based magnets by the SPSmethod is possible, however the powders having higher RE content should be used for this purpose andthe sintering temperature as low as possible, related to density, should be kept.