Microstructure Evolution of Ti/ZrO2 and Ti/Al2O3 ...
The current study were performed in order to assess the fabrication possibility of the metal-ceramic composites based on nanocrystalline substrates. The influence of the variable time of the high energy ball-milling (10, 30 and 50 h) on the structure, pores morphology and microhardness of Ti/ZrO2and Ti/Al2O3compositions was studied. The X-ray …
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Study on microstructure and mechanical properties of W ...
W and Ni 3 Al powders with the same characteristics are reported in [] and [] were used as raw materials in this paper.Alloy powders with Ni 3 Al contents of 2 wt. %, 4 wt. %, 6 wt. %, and 8 wt. % were ball mixed for 25 h under argon atmosphere using a planetary ball mill (XQM-0.4 A) with YG-cemented carbide balls and jars with a rotation speed of 510 rpm and a ball-to-powder ratio of 6:1.
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Effect of high energy ball milling on the microstructure ...
The effect of milling time and speed on solid solubility of V in Al and grain refinement was studied. High-energy ball milling was used to produce Al-xV (x = 2, 5, and 10 at.%) alloys at milling ...
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(PDF) The Effect of Milling Time on Microstrucutre and ...
Aluminium and SiC powder were mixed by ball milling and it was then sintered at 550˚ C for 5 hours. The parameter to control the microstructure of the composite is milling time. Microstructure and hardness of the composites were investigated. The results showed that hardness of the composite has increased as the milling time increased.
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Effect of Ball-Milling Time on the Microstructure and ...
In this study, titanium carbonitride (Ti(C,N)) based cermets were prepared by submicron particles, sintered in a vacuum and hot-pressing furnace. And the effect of different ball-milling time (36 h, 48 h, 60 h and 72 h, respectively, mostly aimed for mixing) on the mechanical properties of Ti(C,N)-based cermets, including transverse rupture strength (TRS), Vickers hardness (HV20), fracture ...
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(PDF) Effect of energy parameters of ball milling on ...
By comparing of both microstructure characteristics of Cu powder and the ball milling parameters, the dominant factors of ball milling, which affect on the concentration of twin faults, type, and ...
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Effects of sintering parameters on the microstructure and ...
C. Effects of sintering parameters on the phase of MWCNTs/Al composites. The XRD patterns of composite rods sintered at 833 K for 2, 3, 4 and 6 h are shown in Fig. 4. It indicates that the main phase of all the composites is Al. Notably, ball milling and sintering were carried out in argon atmosphere and vacuum, respectively.
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The influence of ball milling time on the microstructure ...
Abstract: A Ti 1.06 Pr 0.04 Fe 0.6 Ni 0.3 Zr 0.1 Mn 0.2 alloy was prepared by vacuum induction and high energy ball milling, and the effect of ball milling time on the phase composition, microstructure, and electrochemical properties was studied by X-ray diffraction (XRD), scanning electron microscope (SEM), and in a LAND battery test system. The studies indicated that the main phase in the as ...
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(PDF) Effects of Ball Milling Time on the Microstructure ...
In the present work, the effect of milling parameters on the morphology and microstructure of nanostructure Al2024–B4C composite powders obtained by mechanical alloying (MA) was studied.
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THE EFFECT OF SINTERING CONDITIONS ON THE …
THE EFFECT OF SINTERING CONDITIONS ON THE MICROSTRUCTURE AND ELECTRICAL PROPERTIES OF Pb(Zr 0.52 Ti 0.48)O 3 ... powders was successfully prepared using a planetary ball mill. The microstructure and electrical properties of PZT ceramic were found to be highly ... device parameters of PZT can be tailored by synthesizing the materials with improved .
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Effect of ball milling parameters on the microstructure of ...
Effect of ball milling parameters on the microstructure of W–Y powders and sintered samples May 2003 International Journal of Refractory Metals and Hard Materials 21(3):205-213
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Effect of Milling Time on Co0.5Zn0.5Fe2O4 Microstructure ...
In order to avoid impurities in the samples during milling, appropriate milling parameters have to be chosen (e.g., material of the milling vial, ball- to-powder weight ratio and optimum milling time) [4]. The advantage of ball milling is easy handling, the pos- sibility to produce large quantities and the applicability to a wide range of ...
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Investigation of Porosity and Mechanical Properties of ...
Later, the slurry was sealed into a planetary ball milling tank, and the milling process duration is 4 h. Zirconia container and milling balls were used to avoid contamination of powder. The ball-to-powder ratio used is 3.0, and the ball milling was carried out in vacuum environment to avoid oxidation and the temperature was maintained below 70 ...
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Effect of ball milling parameters on the microstructure of ...
Effect of ball milling parameters on the microstructure of W–Y powders and sintered samples. ... The present paper depicts the effects of milling time on the microstructure and properties of the powders and sintered alloys primitively composed of pure tungsten and yttrium. 2. Experimental
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ORCID
Effects of ball milling parameters on microstructural evolution and mechanical properties of W-3% Y composites. Journal of Nuclear Materials ... The investigation of Y doping content effect on the microstructure and microhardness of tungsten materials. Materials Science and Engineering: A 2014-11 ...
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The Effect of Ball Milling on the Electrochemical Behavior ...
The effect of the structure transformation of the electrode by ball milling on the electrochemical behavior was systematically analyzed. Electrode precursors after a mediate ball milling time of 45min is beneficial to get a better cycling performance, due to the well distributed and less destroy of Carboxyl Methyl Cellulose (CMC).
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(PDF) Effect of ball-milling conditions on microstructure ...
The average than 5 h, the diffraction peaks broadened, and the width of grain size of powders can be determined by using the 0:9k the diffraction peaks increased with increasing milling Scherrer formula: t ¼ Bcosh, where k is the wavelength of 123 Effect of ball-milling conditions on microstructure 935 X-rays, h is the Bragg angle, and B is ...
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Effect of ball milling on the phase constitution and ...
rial combining ball milling and subsequent hot pressing was reported to have improved the ZTmax up to 40% [17]. Motivated by this concept, we have applied higher energy ball milling on melted polycrystalline HMS and studied the effect on the phase constitution, microstructure and TE performance of the subsequently hot-pressed samples. 2 ...
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Effects of ball milling parameters on microstructural ...
The W–Y alloy is an important W alloy, but there is little research on the milling process of binary W–Y system . The aim of this study is to prepare fine and homogeneous W powders reinforced by Y particles, and to investigate the effects of milling time on the evolutions of microstructure of both milled powders and consolidated compacts.
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Effect of ball-milling process in combination with the ...
Effect of ball-milling time on the microstructure and wear resistance of the alloy was investigated, and the formation mechanisms of the reinforcing phases were discussed. Results showed that with prolonging the ball-milling time, the uniformity of the reinforcing phases was improved, grain refinement was achieved, the hardness increased, a ...
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ball milling biomolecular Feb
Feb 01, 2021· Ball-milling is used mainly as a physical method to modify starch, and it is commonly found in the production of flour from grains. The milling equipment can reach milling capacity from several grams in a laboratory to a hundred tons in a commercial mill (Sui and Kong, 2018).
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Effects of Process Control Agent Amount, Milling Time, and ...
In order to investigate the effects of PCA amount on the characteristics of the milled powders, 4 different amounts of stearic acid (1, 2, 3, and 4 wt. % of the total amount of powder) were used as PCA. Hardened chromium steel balls were used for milling with a ball-to-powder weight ratio of 10:1.
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Crystals | Free Full-Text | Nanocrystalline Materials ...
The process parameters for the cryomilling process, such as the milling rotations per minute (RPM), milling time, the radius of milling media, temperature, the ball to powder ratio, and addition of anti-agglomerates such as stearic acid, play an essential role in determining the …
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Effects of ball milling parameters on microstructural ...
The W-3 Y composites were successfully prepared by spark plasma sintering of milled W-3 Y powders with different milling times (0 h, 5 h, 15 h, 30 h). X-ray diffraction (XRD), scanning electron microscope (SEM), and laser particle size analysis were used to study the microstructural evolution and morphological change during the milling process. The crystallite sizes exhibited a continuous ...
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Effect of ZrO2 Nanoparticles and Mechanical Milling on ...
Effect of ZrO 2 Nanoparticles and Mechanical Milling on Microstructure and Mechanical Properties of Al–ZrO 2 Nanocomposites ... Effect of High Energy Ball Milling on the Morphology, Microstructure and Properties of Nano-Sized TiC Particle-Reinforced 6005 Aluminium Alloy Matrix Composite ... Lattice Parameters and Density for Y 2 O 3 ...
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Processing and Microstructure of WC-Co Cermets by Laser ...
considered in this paper. Significant peak broadening was found due to the effects of nano-sized grains and micro-strain generated during the ball milling process. B. Influence of Process Parameters The effects of laser power, powder feed rate, traverse speed, and working distance on sample microstructure and profile are reported in this section.
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Effect of Ball-Milling Parameter on the Synthesis of MWCNT ...
The effects of ball-milling parameter on the structures and properties of the synthesis of multi-walled carbon nanotubes (MWCNT)/alumina hybrid compound via methane decomposition process using Ni-Alumina catalyst were researched. The structural evaluation of particles compound was investigated by particle size analysis, energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), FTIR ...
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Materials | Free Full-Text | Effect of Ball Milling on the ...
Effect of the milling time on the structure, morphology, and electromagnetic parameters of Fe 3 O 4 were studied, and the absorption properties and mechanism of Fe 3 O 4, for different milling times were analyzed. The results showed that the integrity of the original small spherical structure decreased as the ball milling time increased.
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Studies on the Effect of Processing Parameters on ...
The effect of ball milling time on the alloy powder performance of Co-Cr-W was studied. The grain size, micro strain and micro morphology of the milled powders were characterized by using XRD and ...
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(PDF) Effect of energy parameters of ball milling on ...
The microstructure evolution of Cu nanostructured powders at different conditions of the ball milling is investigated by the x-ray diffraction analysis. The characteristics of as-milled Cu-powder microstructure in terms of crystallite sizes, type,
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(PDF) The effect of ball milling in the microstructure and ...
The effect of ball milling in the microstructure and magnetic properties of Pr2Fe17 compound. Download. Related Papers. Magnetocaloric and Magnetovolume anomalies in Fe-based alloys. By Pedro Gorria and Pablo Alvarez-Alonso.
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Effect of milling time on microstructure and properties of ...
The effects of different milling time on microstructure and properties of Nano-Ti polymer by high-energy ball milling have been studied. Nano-Ti polymer was prepared by high-energy ball milling successfully. According to the above analyses and results, conclusions can be summarized at the following aspects. 1)
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Effect of Ball Milling on the Absorption Properties of Fe ...
Effect of the milling time on the structure, morphology, and electromagnetic parameters of Fe 3 O 4 were studied, and the absorption properties and mechanism of Fe 3 O 4, for different milling times were analyzed. The results showed that the integrity of the original small spherical structure decreased as the ball milling time increased.
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Effect of Milling Time on the Microstructure, Physical and ...
The effect of milling time on the morphology, microstructure, physical and mechanical properties of pure Al-5 wt % Al 2 O 3 (Al-5Al 2 O 3) has been investigated.Al-5Al 2 O 3 nanocomposites were fabricated using ball milling in a powder metallurgy route. The increase in the milling time resulted in the homogenous dispersion of 5 wt % Al 2 O 3 nanoparticles, the reduction of particle clustering ...
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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-SEM), field-emission transmission electron ...
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Effect of Milling Time on Properties of Ti-48at%Al ...
The Ti-48at%Al composite powder was synthesized by high energy ball milling. The properties of the composite particles, such as medium diameter,Phase,microstructure and components, were respectively investigated . Results show that, the phase evolution process can be described by: Ti+ Al fcc Ti (Al),TiAl,TiAl3,Ti3AlTiAl3,Ti3Alamorphous phase.
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Simulation of bi-layer cathode materials with ...
Simulation of bi-layer cathode materials with experimentally validated parameters to improve ion diffusion and discharge capacity††
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Effect of ball milling on the local magnetic flux ...
1 Effect of ball milling on the local magnetic flux distribution and microstructure of in situ Fe/MgB 2 conductors C. Laliena1, T. Qureishy 2, E. Martínez1, R. Navarro1, P. Mikheenko2, T. H. Johansen2,3 and P. Kováč4 1Instituto de Ciencia de Materiales de Aragón (ICMA), CSIC – Universidad de Zaragoza, C/ María de Luna 3, 5018 Zaragoza, Spain
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