Synthesis and disordering of B2 TM-Al (TM = Fe, Ni, Co) intermetallic alloys by high energy ball milling: A review

Hadef, F.

doi:10.1016/j.powtec.2017.01.082

Cited by 40 publications

(9 citation statements)

References 143 publications

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“…As stated by Xiao et al, MM aids solid diffusion and rapid compound formation. In work done by Hadef [32]; it is stated that milling includes grinding through impact, compression and attrition. During MM experiments, powders are introduced in required proportions into hardened steel (typically tungsten carbide, stainless steel and zirconia) vial along with milling balls of a selected size.…”

Section: Mechanical Milling (Mm)mentioning

confidence: 99%

Spark Plasma Sintering of Titanium Aluminides: A Progress Review on Processing, Structure-Property Relations, Alloy Development and Challenges

Mogale

Matizamhuka

2020

Metals

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Titanium aluminides (TiAl) have the potential of substituting nickel-based superalloys (NBSAs) in the aerospace industries owing to their lightweight, good mechanical and oxidation properties. Functional simplicity, control of sintering parameters, exceptional sintering speeds, high reproducibility, consistency and safety are the main benefits of spark plasma sintering (SPS) over conventional methods. Though TiAl exhibit excellent high temperature properties, SPS has been employed to improve on the poor ductility at room temperature. Powder metallurgical processing techniques used to promote the formation of refined, homogeneous and contaminant-free structures, favouring improvements in ductility and other properties are discussed. This article further reviews published work on phase constituents, microstructures, alloy developments and mechanical properties of TiAl alloys produced by SPS. Finally, an overview of challenges in as far as the implementation of TiAl in industries of interest are highlighted.

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Section: Mechanical Milling (Mm)mentioning

confidence: 99%

Spark Plasma Sintering of Titanium Aluminides: A Progress Review on Processing, Structure-Property Relations, Alloy Development and Challenges

Mogale

Matizamhuka

2020

Metals

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“…The material type of milling medium is carbon steel, and milling beads are Alumina with different diameter factor of levels variation. The factor of levels for milling time is 1, 2, and 3 h [19][20]. Level for ball-to-powder weight ratio is 1:10; 2:10; and 3:10 [7,20].…”

Section: Experimental Designmentioning

confidence: 99%

“…Level for ball-to-powder weight ratio is 1:10; 2:10; and 3:10 [7,20]. Meanwhile, the chosen extent of filling the vial is level 45, 50, and 55 % [19]. Based on the tabulation result in Table 2, the suitable orthogonal array matrix obtained is L9(3 4 ) with such design as in Table 2 and 3.…”

Section: Experimental Designmentioning

confidence: 99%

“…This factor is intended to keep the available space on the grinder container after the filling of milling balls and sample powder is not spacious nor crowded. According to Hadef, the filling that is too little will cause a low productivity level, likewise overfill will cause the movement of the milling beads has not enough space so that the resulting product performance is less optimum [19]. The filling up to 55% can produce a product performance is optimum.…”

Section: Multi-response Signal To Noise Analysismentioning

confidence: 99%

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Optimization of Production Process of Nano-Calcium Oxide from <i>Pinctada maxima</i> Shell by Using Taguchi Method

2019

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West Nusa Tenggara is a center of sea oyster farming for Pinctada maxima in Indonesia. The calcium carbonate (CaCO3) compounds in the shell are one of the decomposed natural minerals to produce calcium oxide (CaO) compound which is able to be used as an alternative heterogeneous catalyst in nanometer scale. This research aims to discover the control factors which influence the production process of nanometer-scaled CaO heterogeneous catalyst and choose the best condition in its production process with a better-quality product. Calcined pearl shell (P. maxima) powder is milled by using Shaker mill. The experimental design is performed by using Taguchi method with an orthogonal matrix consisting of 4 control factor variables, i.e. milling time, ball-to-powder weight ratio, the diameter of milling beads and extent of milling the vial. The selection of best control factor variable combination is computed by using multiresponse loss function. ANOVA analysis shows that the product quality parameter of nano-calcium oxide is influenced by all experiment factors. Multi-response loss function analysis results an optimum factor and level combination under process condition happens during the duration of 3 h milling, the ball-to-powder weight ratio is 1:10, the diameter of milling beads is 5 mm and 55% extent of filling the vial.

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“…Recently, modern alloys have found new applications in industries like biomedical, aerospace industries and energy conversion and storage applications 7 , 8 . Conventional methods used to fabricate metal alloys typically result in bulk alloys; even with methods like mechanical alloying 9 , 10 which give nanostructured bulk alloys that have drawbacks like precisely control of chemical composition, thickness and microstructure.…”

Section: Introductionmentioning

confidence: 99%

Noble metal alloy thin films by atomic layer deposition and rapid Joule heating

Guo

Zou

Cheng

et al. 2022

Sci Rep

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Metal alloys are usually fabricated by melting constituent metals together or sintering metal alloy particles made by high energy ball milling (mechanical alloying). All these methods only allow for bulk alloys to be formed. This manuscript details a new method of fabricating Rhodium–Iridium (Rh–Ir) metal alloy films using atomic layer deposition (ALD) and rapid Joule heating induced alloying that gives functional thin film alloys, enabling conformal thin films with high aspect ratios on 3D nanostructured substrate. In this work, ALD was used to deposit Rh thin film on an Al2O3 substrate, followed by an Ir overlayer on top of the Rh film. The multilayered structure was then alloyed/sintered using rapid Joule heating. We can precisely control the thickness of the resultant alloy films down to the atomic scale. The Rh–Ir alloy thin films were characterized using scanning and transmission electron microscopy (SEM/TEM) and energy dispersive spectroscopy (EDS) to study their microstructural characteristics which showed the morphology difference before and after rapid Joule heating and confirmed the interdiffusion between Rh and Ir during rapid Joule heating. The diffraction peak shift was observed by Grazing-incidence X-ray diffraction (GIXRD) indicating the formation of Rh–Ir thin film alloys after rapid Joule heating. X-ray photoelectron spectroscopy (XPS) was also carried out and implied the formation of Rh–Ir alloy. Molecular dynamics simulation experiments of Rh–Ir alloys using Large-Scale Atomic/Molecular Massively Parallel Simulator (LAMMPS) were performed to elucidate the alloying mechanism during the rapid heating process, corroborating the experimental results.

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Synthesis and disordering of B2 TM-Al (TM = Fe, Ni, Co) intermetallic alloys by high energy ball milling: A review

Cited by 40 publications

References 143 publications

Spark Plasma Sintering of Titanium Aluminides: A Progress Review on Processing, Structure-Property Relations, Alloy Development and Challenges

Spark Plasma Sintering of Titanium Aluminides: A Progress Review on Processing, Structure-Property Relations, Alloy Development and Challenges

Optimization of Production Process of Nano-Calcium Oxide from <i>Pinctada maxima</i> Shell by Using Taguchi Method

Noble metal alloy thin films by atomic layer deposition and rapid Joule heating

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