Effect of process control agent on the structural and …
Effect of process control agent on the structural and magnetic properties of nano/amorphous Fe 0.7 Nb 0.1 Zr 0.1 Ti 0.1 powders prepared by high energy ball milling Author links open overlay panel Mohammad Hossein Khazaei Feizabad a b, Shahriar Sharafi a c, Gholam Reza Khayati a c, Mohammad Ranjbar a d
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Mechanical Milling: a Top Down Approach for the Synthesis …
Nanocrystalline Nb 3 (Al 1-x Ge x) mixtures with x = 0, 0.3 and 1 were fabricated by E. Pusceddu et al[61] by wet mechanical milling using copper milling media and distilled water as a process control agent (PCA) with the intention of improving the yield, properties and the performance of these materials. Very high yields of nanocrystalline ...
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Effects of interfacial interactions between metal and process control
Even in brittle materials (e.g., metallic glass and intermetallic), particles can be deformed plastically into platelet shape by ball-mill treatment using a process control agent (PCA), such as an organic solvent or oil, which controls the surface energy on the particles (Koch and Whittenberger, 1996; Niu, 2020).
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Effect of Ball Milling Parameters on the Refinement of …
The high-energy ball milling method was adopted to explore the influence of ball milling parameters, such as milling speed and additive amounts of process control agent (PCA) on tungsten powder. The morphology and microstructure of tungsten powder in the process of refinement were characterized by field-emission scanning electron microscope (FE …
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(PDF) Effects of Process Control Agent Amount, Milling …
Using a mechanical alloying process, the effect of parameters—process control agent (PCA) type and amount, and milling speed and time—on solid-solution onset and GPS of a model HEA (AlCoCrFe ...
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Effect of the process control agent in the ball-milled …
Ti-, Y- and O-enriched nano-scale features in combination with nanostructuring induced by mechanical alloying (MA) enhance the high temperature mechanical properties …
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Effects of interfacial interactions between metal and …
Fe–Si–B–P–Cu nanocrystalline alloy were treated with ball-mill using a lubricant as a process control agent (PCA). The resulting alloy powder is a strong candidate material for …
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Effect of Process Control Agent on Microstructures and …
In the process of preparing Fe-14Cr-0.4Ti-0.25Y 2 O 3 steels by changing the amount of residual PCA in ball-milled powders and the spark-plasma-sintering temperature, Mihalache et al. found that adding a high quantity of PCA can shorten the ball-milling time, while near theoretical density, high Vickers hardness and fine grain size of ferritic ...
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Influence of Milling Atmosphere on the High-Energy Ball-Milling Process …
In addition to other parameters, the used PCA (process control agent) as well as the atmosphere significantly influence the milling procedure. The present article deals with the influence of different milling atmospheres (air, argon, nitrogen) on the high-energy ball-milling process when milling an Al alloy with SiC particles.
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Role of process control agent on synthesis and …
Semantic Scholar extracted view of "Role of process control agent on synthesis and consolidation behavior of nano-crystalline copper produced by mechano-chemical route" by S. Sheibani et al. ... Effect of High-Energy Ball Milling in Toluene on the Morphology, Phase Evolution, and Contamination for Some Elemental Powders. Kishore Kumar Behera K ...
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Decomposition of process control agent during mechanical milling …
The process control agent (PCA) stearic acid has been used to prevent excessive cold welding during mechanical milling of an Al–TiO 2 powder mixture. Gradual decomposition of the stearic acid during high-energy ball milling caused contamination of the powder with carbon.
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The effect of process control agent on the structure and …
Semantic Scholar extracted view of "The effect of process control agent on the structure and magnetic properties of nanocrystalline mechanically alloyed Fe–45% Ni powders" by K. Gheisari et al. ... Effect of the environment on the morphology of Ni powder during high-energy ball milling. Hua-bing Li Jing He Qingqing Sun Shuai Wang. Materials ...
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Effect of process control agent and mechanical milling on …
The process control agent used It has been reported in the literature that the powder yield is around 9–10% as the Al powder welds with the walls of the ball mill as well as with the balls. The Process Control Agent (1.5% ethanol) helped in controlling the cold weld of Al particles effectively. This occurs because as soon as the ball mill ...
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The effect of process control agent usage on the structural …
In this study, the effects of the process control agent (toluene) usage on the product size, morphology and conversion level of precursor powders to MgB 2 after subsequent heat treatment was investigated. Different from the previous studies given above, the milling performed within the SPEX mill, and the effect of toluene usage depending on the process …
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Influence of process control agent and Al concentration on …
Influence of process control agent and Al concentration on synthesis and phase stability of a mechanically alloyed AlxCoCrFeMnNi high-entropy alloy. ... The mixtures were mechanically alloyed in a SPEX 8000M high-energy ball mill at 800 rpm. The used milling media and containers were made of D2 hardened steel; the container size was 5.08 cm in ...
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Effects of Ball Milling Processing Conditions and …
Although a process control agent (PCA) can be used to reduce the final particle size and increase the powder yield, one need to consider the contamination level and possible interactions between the powders and the …
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Advanced Powder Technology
ball milling, their effect on the properties of the milled powders has not been quantified or understood. ... Effect of organic liquid process control agents on properties of ball-milled powders ...
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Effects of interfacial interactions between metal and process control
DOI: 10.1016/j.heliyon.2022.e10325 Corpus ID: 249722170; Effects of interfacial interactions between metal and process control agents during ball milling on the microstructure of the milled Fe-based nanocrystalline alloy powder
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Effect of organic liquid process control agents on properties …
For two oxide powders, Bi 2 O 3 and CuO, the changes in their particle size distributions and crystallite sizes, treated as specific milling outcomes (each expressed …
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Thermal analysis and microstructure of oxide dispersion …
Fe–14Cr–3 W–0.4Ti–0.25Y2O3 ferritic steels were produced by ball milling of initial mixture of elemental powders with various amounts of process control agent (PCA), ethanol (0.25 mass%, 2.5 mass%, 4 mass% and 20 mass%) under an Ar atmosphere and spark plasma sintering (SPS) consolidation at 1070 °C. The influence of the quantity of PCA on the …
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Microstructural Characteristics and Electrochemical …
Scalable wet high-energy ball milling was used to refine commercial micro-silicon (Si) with water and ethanol as process control agents (PCA). After grinding, the original particle size of 15 ...
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An Investigation on the High-Energy Ball Milling of Iron …
PM2010 World Congress – Mechanical Alloying Manuscript refereed by Dr José Manuel Martin, CEIT, Spain An Investigation on the High-Energy Ball Milling of Iron-Titanium Powder Mixtures without Process Control Agents Ricardo Mendes Leal Neto; Railson Bolsoni Falcão; Edgar Djalma Campos Carneiro D; Cláudio José da Rocha Centro de Ciência e Tecnologia …
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Advanced Powder Technology
Despite widespread use of liquid process control agents (PCA) during material processing via high-energy ball milling, their effect on the properties of the milled powders has not been...
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Role of Sn as a Process Control Agent on Mechanical …
In this study, the effects of Sn as a process control agent (PCA) on the final powder sizes, morphology, homogenization and alloying process of a new titanium alloy were investigated. ... For the Ti10Ta8Mo3Sn (wt %) alloy, the Sn element was used as PCA to enhance the milling process in the planetary ball mill. The milling process of both ...
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Effects of Interfacial Interaction between Metal and Process Control
Request PDF | On Jan 1, 2022, Satoshi Motozuka and others published Effects of Interfacial Interaction between Metal and Process Control Agents During Ball Milling on the Microstructure of the ...
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Effects of Process Control Agents on Characteristics of Cu …
Effects of type and concentration of process control agent on characteristics of the nanocrystalline Cu-1Ta nanocomposite during milling and subsequent sintering were investigated. Microstructural analyses showed that addition of stearic acid (SA) into Cu-1Ta mixture was more effective compared to toluene. The results revealed that application of 2% …
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The effect of process control agent usage on the structural properties
The XRD pattern of the samples milled and sintered in tube furnace at 630 °C for two hrs with the argon flow rate of 5 mL / min are given in Fig. 1, Fig. 2.Although, the intensity values of them slightly changed with applied process variables, it was found that, only the Mg peaks can detectable for the milled samples except the samples milled at decreased ball sizes …
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Grinding in Ball Mills: Modeling and Process Control
The process control in a ball mill grinding circuit faces severe difficulties due to the following well known characteristics: • the process is nonlinear with immeas urable disturbances and ...
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An Investigation on the High-Energy Ball Milling of Iron …
PM2010 World Congress – Mechanical Alloying Manuscript refereed by Dr José Manuel Martin, CEIT, Spain An Investigation on the High-Energy Ball Milling of Iron-Titanium Powder Mixtures without Process Control Agents Ricardo Mendes Leal Neto; Railson Bolsoni Falcão; Edgar Djalma Campos Carneiro D; Cláudio José da Rocha Centro de ...
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Process Control Agent
A process control agent (PCA) is usually used in the process of mechanical alloying to avoid cold welding and bonding between the powder particles and the balls and the agglomeration of …
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