Mechanical milling/alloying of intermetallics

Koch, Carl C.; Whittenberger, J. D.

doi:10.1016/0966-9795(96)00001-5

Cited by 324 publications

(157 citation statements)

References 76 publications

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“…Mechanical alloying is a simple and low-cost process (Koch and Whittenberger, 1996;Hubertus and Malcolm, 2006). Thus, this quick mechanical alloying is employed only for producing fine particulate materials with good interfacial contact between the two elemental powder particles.…”

Section: Introductionmentioning

confidence: 99%

Fe-Sn Intermetallic Compound Synthesized via Mechanical Alloying and Liquid Phase Sintering

Tosangthum¹,

Meesa-Ard²,

Tongsri³

2017

CMUJNS

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This investigation aimed to synthesize an iron (Fe)-tin (Sn) intermetallic compound (FeSn 2 ) by using a two-step process of mechanical alloying (MA) and liquid phase sintering (LPS). We demonstrated experimentally that this process was able to produce the FeSn 2 intermetallic compound. Two different mechanical alloying procedures for producing mechanically alloyed Fe-Sn powders were explored. In the first, mixtures of as-recieved Fe and Sn powders were mechanically alloyed. In the second, the as-received Fe powder was pre-milled first and the as-received Sn powder was then added and mechanically alloyed. Under the same liquid phase sintering conditions, the sintered materials produced via the first mechanical alloying procedure showed that the FeSn 2 content increased with increasing sintering time and left small traces of unreacted Fe and Sn materials. In the sintered materials produced via the second mechanical alloying procedure, only the FeSn 2 phase was observed for all sintering times. The two-step process using the second mechanical alloying procedure performed better; it synthesized more of the FeSn 2 intermetallic compound.

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Section: Introductionmentioning

confidence: 99%

Fe-Sn Intermetallic Compound Synthesized via Mechanical Alloying and Liquid Phase Sintering

Tosangthum¹,

Meesa-Ard²,

Tongsri³

2017

CMUJNS

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“…It is because they are indispensable in many applications and have additional breakthrough especially for high storage structural materials, magnetic materials, hydrogen storage materials [2], semiconductors, superconductors, refractory alloys, high strength materials, dental amalgams (AgSn 3 ), antifriction materials, metallic glasses, contact layers or barrier layers for microelectronics (TiSi 2 ), coating tools and dies, furnace hardware, cladding, heating materials, aerospace, piping of chemical industries [3].…”

Section: Introductionmentioning

confidence: 99%

Structural, Chemical Bonding, Electronic and Magnetic Properties of XY₃(X = Al, Ga and Y = V, Nb, Cr, Mo) Compounds

et al. 2015

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The metallic behavior of the band gap of intermetallic compounds has large applications in superconductivity, nickel-metal hydrides batteries, semiconductors, and heating materials. The presence of transition elements makes them more attractive for magnetic applications. In this work we studied the structural, electronic, chemical bonding, and magnetic properties of binary intermetallic compounds XY3 (X = Al, Ga and Y = V, Nb, Cr, Mo). These compounds were investigated by using full potential linearized augmented plane wave plus local orbitals method. The exchange correlation potential of generalized gradient is used. Our calculated lattice constants are in good agreement with experimental values. The band structures of these compounds are purely overlapping across the Fermi level. The bonding is mainly covalent in these compounds. The density of states of the compounds shows that the major contribution arises from d-states of anions. The investigation carried out shows that the most of these compounds have ferromagnetic nature, while few are diamagnetic. On the basis of this study it is expected that these compounds can be used as a best moulds for future study on similar compounds.

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“…It was first developed by John Benjamin to produce oxide dispersion strengthened materials [2] . Furthermore, mechanical alloying has been reported to be capable of producing non-equilibrium structures including amorphous alloys, nanocrystalline materials and extended solid solutions [3][4][5] . It is also used to obtain alloys subjected to ulterior annealing and consolidation [6 and 7] .…”

mentioning

confidence: 99%

Development of Fe-based nanocrystalline materials by mechanical alloying

Suñol¹,

González²,

Escoda³

et al. 2008

Rev. metal.

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Nanocrystalline materials, which are defined as materials with grain sizes less than 100 nm have received much attention as advanced materials with improved physical and mechanical properties [1] . Mechanical alloying (MA) is one of the solid state reaction techniques by which novel materials may be synthesized from elemental or prealloyed powders. Mechanical alloying involves the synthesis of materials by high-energy ball milling. It was first developed by John Benjamin to produce oxide dispersion strengthened materials [2] . Furthermore, mechanical alloying has been reported to be capable of producing non-equilibrium structures including amorphous alloys, nanocrystalline materials and extended solid solutions [3][4][5] . It is also used to obtain alloys subjected to ulterior annealing and consolidation [6 and 7] . Over the past several decades, amorphous and more recently nanocrystalline Fe-based materials have been investigated for applications such as telecommunications, power electronics, micro devices, and so on [8 and 9] .Although it is known that Fe-based alloys prepared by rapid solidification techniques, in ribbon form, can exhibit superior soft magnetic properties [10] , they do not attain a more significant level of applicability because its shape limits their technological use. Mechanical alloying of ribbons is recently applied as an alternative route to obtain powdered materials [11 and 12] . If the original material is amorphous, controlled annealing D De ev ve el lo op pm me en nt t o of f F Fe e--b ba as se ed d n na an no oc cr ry ys st ta al ll li in ne e m ma at te er ri ia al ls s b by y m me ec ch ha an ni ic ca al l a al ll lo oy yi in ng g ( (· ·) ) J.J. Suñol*, A. González*, L. Escoda* and M.T. Mora** A Ab bs st tr ra ac ct t Two alloys, Fe 80 Nb 10 B 10 and Fe 70 Ni 14 Zr 6 B 10 , were produced by mechanical alloying. The formation of the nanocrystallites (about 7-8 nm at 80h MA) was detected by X-ray diffraction. After milling for 80 h, differential scanning calorimetry scans show low-temperature recovery processes and several crystallization processes related with crystal growth and reordering of crystalline phases. The apparent activation energy values are 315 ± 40 kJ mol -1 for alloy A, and 295 ± 20 kJ mol -1 and 320 ± 25 kJ mol -1 for alloy B. Furthermore, a melt-spun Fe-based ribbon was mechanically alloyed to obtain a powdered-like alloy. The increase of the rotation speed and the ball-to-powder weight ratio reduces the necessary time to obtain the powdered form. , han sido producidas por aleado mecánico. Mediante difracción de rayos X se ha detectado la formación de nanocristales (7-8 nm a las 80 h de aleado). Tras molturar 80 h, las curvas calorimétricas muestran procesos exotérmicos asociados a la relajación estructural y al crecimiento cristalino y reordenación de la fase cristalina. Los valores de la energía aparente de activación de las cristalizaciones son 315 ± 40 kJ mol -1 para la aleación A, y 295 ± 20 kJ mol -1 y 320 ± 25 kJ mol -1 para la aleación B. Por otra parte...

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Mechanical milling/alloying of intermetallics

Cited by 324 publications

References 76 publications

Fe-Sn Intermetallic Compound Synthesized via Mechanical Alloying and Liquid Phase Sintering

Fe-Sn Intermetallic Compound Synthesized via Mechanical Alloying and Liquid Phase Sintering

Structural, Chemical Bonding, Electronic and Magnetic Properties of XY₃(X = Al, Ga and Y = V, Nb, Cr, Mo) Compounds

Development of Fe-based nanocrystalline materials by mechanical alloying

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Mechanical milling/alloying of intermetallics

Cited by 324 publications

References 76 publications

Fe-Sn Intermetallic Compound Synthesized via Mechanical Alloying and Liquid Phase Sintering

Fe-Sn Intermetallic Compound Synthesized via Mechanical Alloying and Liquid Phase Sintering

Structural, Chemical Bonding, Electronic and Magnetic Properties of XY3(X = Al, Ga and Y = V, Nb, Cr, Mo) Compounds

Development of Fe-based nanocrystalline materials by mechanical alloying

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Structural, Chemical Bonding, Electronic and Magnetic Properties of XY₃(X = Al, Ga and Y = V, Nb, Cr, Mo) Compounds