| People | Locations | Statistics |
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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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González Cuervo, Claudia Paulina
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (16/16 displayed)
- 2019Removal of cadmium in wastewater through geopolymeric materials based on pumice.citations
- 2017Inclusion of geopolymers derivate from fly ash and pumice in reinforced concrete
- 2017Structural and mechanical study of concrete made from cementitious materials of low environmental impactcitations
- 2017Characterization of Tungsten Carbide coatings deposited on AISI 1020 steelcitations
- 2016Changes on electrical and structural properties of polyaniline and polypyrrol by mullite doping
- 2016Morphological analysis of carbon steels using fractal geometry
- 2014Synthesis and characterization of inorganic polymers from the alkali activation of an aluminosilicatecitations
- 2013Comparative study between structural and electrical properties of geopolymers applied to a green concretecitations
- 2013Conducting polymers doped with a mineral phase
- 2012Synthesis, characterization and ac-conductivity measurements of polyaniline based composites with fly-ash and clinker
- 2008The effect of Mn and B on the magnetic and structural properties of nanostructured Fe60Al40 alloys produced by mechanical alloying
- 2008Comparative study between melted and mechanically alloyed samples of the Fe50Mn10Al40 nanostructured systemcitations
- 2003Bulk Magnetic Properties of the Fe0.5Mn0.1Al 0.4 Disordered Alloycitations
- 2003Mössbauer and X-Ray Characterization of Fe0.2Mn 0.4Al0.4 Mechanically Alloyed Powders
- 2003Magnetic and Structural Properties of Fe-Mn-Al Alloys Produced by Mechanical Alloyingcitations
- 2001Magnetic phase diagram of the FexMn0.60-xAl0.40 (0.20≤x≤0.60) alloys mechanically alloyed for 48 hours
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article
Magnetic and Structural Properties of Fe-Mn-Al Alloys Produced by Mechanical Alloying
Abstract
<p>The effects of concentration and preparation conditions on the magnetic and structural properties of samples of the Fe-Mn-Al system prepared by mechanical alloying were studied by Mössbauer spectroscopy, X-ray diffraction and susceptibility techniques. X-ray diffraction showed that samples with high Al content (40 at.%) and prepared with low milling times (lest than 12 hours) present the peaks of Mn, Fe-Al alloy and broad peaks which correspond to the ternary bcc alloy. For 12 hours the Mn peak disappears and for 24 h or more the bcc ternary phase is totally formed. For t ≥, 24 h Mössbauer spectroscopy studies proved that: samples rich in Fe are ferromagnetic (F) at room temperature (RT) and present a reentrant spin-glass (RSG) behavior for low T; samples with intermediate Fe values are paramagnetic (P) at RT and SG for low T; and those with low Fe content are P at RT, antiferromagnetic (AF) at low T and RSG at very low T. By ac magnetic susceptibility it was possible to detect an additional magnetic phase in the F and P regions which was attributed to a superparamagnetic (SP)-like behavior. XRD and Mössbauer spectroscopy of samples with low Al content (7.5 at.%) showed that they present a fcc AF phase and a Fe-Al F phase for low milling times (≤10 h). For bigger times the only detected phase is the fcc, which is AF for low Fe contents and P for high Fe contents. The effect of using small balls is to enhance the alloyed process.</p>