Synthesis of (Al65Cu20Fe15)100−xSix quasicrystalline alloys by mechanical alloying

Murty, B.S.; Barua, Pranabesh; Srinivas, V.; Schurack, F.; Eckert, J.

doi:10.1016/j.jnoncrysol.2003.11.010

Cited by 18 publications

(19 citation statements)

References 5 publications

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“…Some weak unidentified peaks occur for all milling times. Similar results were obtained in several works using planetary mills and longer milling times 2,8,[9][10][11][12] , although the presence of β or even ψ phases, besides the θ phase, are also reported in these works. The presence of X-ray diffraction lines from the elementary powders after 2 and 3 hours of milling made difficult the identification of other phases having diffraction lines at 2θ ranging from 43 to 45° and that were supposed to form.…”

Section: Methodssupporting

confidence: 90%

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The formation of quasicrystal phase in Al-Cu-Fe system by mechanical alloying

et al. 2012

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In order to obtain quasicrystalline (QC) phase by mechanical alloying (MA) in the Al-Cu-Fe system, mixtures of elementary Al, Cu and Fe in the proportion of 65-20-15 (at. %) were produced by high energy ball milling (HEBM). A very high energy type mill (spex) and short milling times (up to 5 hours) were employed. The resulting powders were characterized by X-ray diffraction (XRD), differential scanning calorimetry (DSC) and scanning electron microscopy (SEM). QC phase was not directly formed by milling under the conditions employed in this work. However, phase transformations identified by DSC analysis reveals that annealing after HEBM possibly results in the formation of the ψ QC phase.

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Section: Methodssupporting

confidence: 90%

“…HEBM of the same composition can lead to the formation of the ψ phase after annealing at temperatures ranging from 440 to 550 °C 6 or at temperatures as high as 750 °C 7 , or even with no additional annealing, as a minor phase 8,9 . In compositions with lower Fe content (10-12 at.…”

Section: Introductionmentioning

confidence: 99%

The formation of quasicrystal phase in Al-Cu-Fe system by mechanical alloying

et al. 2012

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“…• an Al-Cu-Si alloy because Si has been reported as a stabilising element of the Al-Cu-Fe QC phase [15,16], which behaviour may be also of interest when Si is present in the surrounding matrix.…”

Section: Methodsmentioning

confidence: 99%

Microstructures and mechanical properties of Al-base composite materials reinforced by Al–Cu–Fe particles

Laplanche

Joulain

Bonneville

et al. 2010

Journal of Alloys and Compounds

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“…Several reports have been published on the formation of icosahedral QC phase by MM/MA subsequently annealing in Al-Cu-Fe system [160][161][162][163][164][165][166][167][168][169]. These alloys in the MA state contain a β(CsCl_type) solid solution along with icosahedral phase [170].…”

Section: Icosahedral Phasementioning

confidence: 99%

Mechanical Milling: a Top Down Approach for the Synthesis of Nanomaterials and Nanocomposites

Yadav¹,

Yadav²,

Singh³

2012

531

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Synthesis of nanomaterials by a simple, low cost and in high yield has been a great challenge since the very early development of nanoscience. Various bottom and top down approaches have been developed so far, for the commercial production of nanomaterials. Among all top down approaches, high energy ball milling, has been widely exploited for the synthesis of various nanomaterials, nanograins, nanoalloy, nanocomposites and nano -quasicrystalline materials. Mechanical alloying techniques have been utilized to produce amorphous and nanocrystalline alloys as well as metal/non-metal nanocomposite materials by milling and post annealing, of elemental or compound powders in an inert atmosphere. Mechanical alloying is a non-equilibrium processing technique in which different elemental powders are milled in an inert atmosphere to create one mixed powder with the same composition as the constituents. In high-energy ball milling, plastic deformation, cold-welding and fracture are predominant factors, in which the deformation leads to a change in particle shape, cold-welding leads to an increase in particle size and fracture leads to decrease in particle size resulting in the formation of fine dispersed alloying particles in the grain-refined soft matrix. By utilizing mechanical milling various kind of aluminium/ nickel/ magnesium/ copper based nanoalloys, wear resistant spray coatings, oxide and carbide strengthened aluminium alloys, and many other nanocomposites have been synthesized in very high yield. The mechanical milling has been utilized for the synthesis of nanomaterials either by milling and post annealing or by mechanical activation and then applying some other process on these activated materials. This review is a systematic view of the basic concept of mechanical milling, historical view and applications of mechanical milling in the synthesis of various nanomaterials, nanosomposites, nnaocarbons and nano quasicrystalline materials.

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Synthesis of (Al65Cu20Fe15)100−xSix quasicrystalline alloys by mechanical alloying

Cited by 18 publications

References 5 publications

The formation of quasicrystal phase in Al-Cu-Fe system by mechanical alloying

The formation of quasicrystal phase in Al-Cu-Fe system by mechanical alloying

Microstructures and mechanical properties of Al-base composite materials reinforced by Al–Cu–Fe particles

Mechanical Milling: a Top Down Approach for the Synthesis of Nanomaterials and Nanocomposites

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