Strong dependence of ferrimagnetic properties on Co concentration in the Mn1−xAl1−yCox+y system

Paduani, C.; Schaf, J.; Persiano, A. I. C.; Ardisson, José D.; Takeuchi, A.Y.; Riegel, Izabel Cristina

doi:10.1016/j.intermet.2010.04.022

Cited by 4 publications

(1 citation statement)

References 11 publications

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“…8a,b). The diffraction patterns obtained before the degradation of the two Mn-Al-Fe/Mn-Al-Co powders reveal the coexistence of a solid solution of MnAlFe 2 (JCPD 00-054-0388) and MnAlCo 2 (JCPD 03-065-5185) phases, respectively, (B2, space group Fm3m) with traces of very small proportions of MnAl phase (η) rich in Al and tetragonal face-centered (FCT) structure [40]. The average crystallite size of the solid solution B2 is of 60 ± 3 nm.…”

Section: Resultsmentioning

confidence: 99%

Effects of the Addition of Fe, Co on the Azo Dye Degradation Ability of Mn-Al Mechanically Alloyed Powders

Mbarek

Saurina

Escoda

et al. 2020

Metals

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Azo compounds are used in the textile and leather industry. A significant step during the azo dyes treatment of water is the degradation by breaking the N=N bonds. This break produces the decolorization of water. In this research work, 10% atomic of Fe or Co was added to produce ternary Mn-Al-rich, nanostructured, mechanically alloyed powders in order to improve the decolorization of Reactive Black 5 solutions and to check Fe and Co addition’s influence. The microstructure was followed by X-ray diffraction, the morphology and composition by electronic microscopy and energy-dispersive X-ray spectroscopy (EDS) microanalysis. The dye degradation was monitored with ultraviolet/visible absorption spectrophotometry. After degradation, the remaining organic compound was checked by high-performance liquid chromatography (HPLC) and the functional groups of the powdered alloys by infrared spectroscopy. Fe addition to Mn-Al displayed faster kinetics and a higher efficiency than the Co addition. The Mn-Al-Fe solution (0.25 g/100 mL) was fully decolorized in 5 min. On the other side, Mn-Al-Co powders were able to successfully decolorize the dyed solution in 10 min under the same conditions. Thus, nanocrystalline Fe-doped Mn-Al alloys are good candidates for use in the decolorization process, in comparison with Co-doped and other intermetallic particles.

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Section: Resultsmentioning

confidence: 99%

Effects of the Addition of Fe, Co on the Azo Dye Degradation Ability of Mn-Al Mechanically Alloyed Powders

Mbarek

Saurina

Escoda

et al. 2020

Metals

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Enhanced formation and improved thermal stability of ferromagnetic τ phase in nanocrystalline Mn55Al45 alloys by Co addition

Xiang

Song

Deng

et al. 2019

Journal of Alloys and Compounds

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Evolution of Intrinsic Magnetic Properties in L1 ₀ Mn−Al Alloys Doped with Substitutional Atoms and Correlated Mechanism: Experimental and Theoretical Studies

Zhao

Jiao

et al. 2019

Phys. Rev. Applied

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Strong dependence of ferrimagnetic properties on Co concentration in the Mn1−xAl1−yCox+y system

Cited by 4 publications

References 11 publications

Effects of the Addition of Fe, Co on the Azo Dye Degradation Ability of Mn-Al Mechanically Alloyed Powders

Effects of the Addition of Fe, Co on the Azo Dye Degradation Ability of Mn-Al Mechanically Alloyed Powders

Enhanced formation and improved thermal stability of ferromagnetic τ phase in nanocrystalline Mn55Al45 alloys by Co addition

Evolution of Intrinsic Magnetic Properties in L1 ₀ Mn−Al Alloys Doped with Substitutional Atoms and Correlated Mechanism: Experimental and Theoretical Studies

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Strong dependence of ferrimagnetic properties on Co concentration in the Mn1−xAl1−yCox+y system

Cited by 4 publications

References 11 publications

Effects of the Addition of Fe, Co on the Azo Dye Degradation Ability of Mn-Al Mechanically Alloyed Powders

Effects of the Addition of Fe, Co on the Azo Dye Degradation Ability of Mn-Al Mechanically Alloyed Powders

Enhanced formation and improved thermal stability of ferromagnetic τ phase in nanocrystalline Mn55Al45 alloys by Co addition

Evolution of Intrinsic Magnetic Properties in L1 0 Mn−Al Alloys Doped with Substitutional Atoms and Correlated Mechanism: Experimental and Theoretical Studies

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Evolution of Intrinsic Magnetic Properties in L1 ₀ Mn−Al Alloys Doped with Substitutional Atoms and Correlated Mechanism: Experimental and Theoretical Studies