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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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| Ali, M. A. |
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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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Viola, Giuseppe
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Publications (8/8 displayed)
- 2025Investigation of electric field-induced phase transitions in unfilled tungsten bronze relaxor ceramics designed by the high entropy conceptcitations
- 2019Orthoenstatite to forsterite phase transformation in magnesium germanate ceramicscitations
- 2017The effect of processing conditions on phase and microstructure of CaGeO3 ceramicscitations
- 2013Contribution of piezoelectric effect, electrostriction and ferroelectric/ferroelastic switching to strain-electric field response of dielectricscitations
- 2013A Lead-Free and High-Energy Density Ceramic for Energy Storage Applicationscitations
- 2012The effect of carbon nanotubes on the sintering behaviour of zirconiacitations
- 2012Structural and magnetic characterization of spark plasma sintered Fe-50Co alloyscitations
- 2011THE CONTRIBUTION OF ELECTRICAL CONDUCTIVITY, DIELECTRIC PERMITTIVITY AND DOMAIN SWITCHING IN FERROELECTRIC HYSTERESIS LOOPScitations
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article
Structural and magnetic characterization of spark plasma sintered Fe-50Co alloys
Abstract
<jats:title>ABSTRACT</jats:title><jats:p>Fe-50 wt% Co alloy powders with average particle size of 10 μm were compacted by spark plasma sintering (SPS) at 700, 800, 900 and 950<jats:sup>o</jats:sup>C by applying 40, 80, 100 MPa uniaxial pressures for 2, 5, 10 minutes. The densities of the samples were found to increase with temperature from 700 to 900<jats:sup>o</jats:sup>C for constant sintering pressure and time and to decrease for the material sintered at 950<jats:sup>o</jats:sup>C. The effects of sintering time on density were more significant in samples sintered at 700<jats:sup>o</jats:sup>C and 800<jats:sup>o</jats:sup>C than those densified at 900<jats:sup>o</jats:sup>C. The consequences of small increases in mechanical pressure during sintering on density values were significant for samples sintered at 700<jats:sup>o</jats:sup>C. The coercivity (H<jats:sub>c</jats:sub>) of the compacts decreased significantly with increasing sintering temperature, and with increasing dwell time at sintering temperatures lower than 700<jats:sup>o</jats:sup>C. The sample sintered at 950<jats:sup>o</jats:sup>C, which contains the largest grains among the prepared samples and porous microstructure, exhibited the minimum coercivity. Unlike H<jats:sub>c</jats:sub>, the remanence (B<jats:sub>r</jats:sub>) and saturation induction (B<jats:sub>sat</jats:sub>) values were more strongly affected by the specimen density than by grain size. B<jats:sub>r</jats:sub> and B<jats:sub>sat</jats:sub> values were found to vary linearly with sintering temperature and pressure owing to increasing density. An increase in soaking time at 800 and 900 <jats:sup>o</jats:sup>C, although enabling higher density, exhibited contradicting effects on B<jats:sub>sat</jats:sub> values. The SPS parameters to obtain maximum density and optimum magnetic properties for Fe-50% Co alloy were found to be 900<jats:sup>o</jats:sup>C, 80 MPa and 2-5 minutes.</jats:p>