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High-energy ball-milling synthesis and densification of Fe

May 31, 2007High-energy ball-milling synthesis and densification of Fe–Co alloy nanopowders by field-activated sintering (FAST) Fe–Co–Cr–V nanopowders with an average grain size of 10 nm were prepared by high-energy ball-milling. Constant-rate heating at 3 °C/min results in an increase of the average grain size to 85 nm at 900 °C.

Cited by: 14

Synthesis of single-phase Al–Cu–Fe quasicrystals using

The as-milled powder specimens consist of a nanocrystalline Al(Cu,Fe) solid solution. The structural phase transitions of the ball-milled Al–Cu–Fe nanopowders during constant rate heating were investigated by in situ X-ray diffraction at the B2 beamline at desy-hasylab (Hamburg, Germany). High-quality single-phase quasicrystalline (QC

Cited by: 16

Magnetocaloric effect in high-energy ball-milled Gd5Si2Ge2

Magnetocaloric effect in high-energy ball-milled Gd 5 Si 2 Ge 2 and Gd 5 Si 2 Ge 2 /Fe nanopowders. Author links open overlay panel D.M. Rajkumar M. Manivel Raja R. Gopalan V Magnetization decreased with milling time due to decrease in the grain size and randomization of the magnetic moments at the surface. Ball milling. Nanopowders

Cited by: 18

Magnetocaloric effect in high-energy ball-milled Gd5Si2Ge2

Nanopowders. Structural transition. reveal that the high-energy ball milling produces amorphous phase. The Fe powder-added Gd 5 Si 2 Ge 2 alloy displays completely amorphous nature whereas the virgin and Gd 5 Si 2 Ge 1.9 Fe 0.1 alloys show signature of the nanocrystallites in the amorphous matrix.

Cited by: 18

Saturation magnetization studies on iron-nickel ball

Nov 01, 2018Saturation magnetization studies on iron-nickel ball milling nanopowders and spark plasma sintered specimens most shell of the atom. Initially, from the hysteresis loops, Ms was calculated and hysteresis loop of 40 wt% Ni-Fe (32 Hours Milling Linda L. HussamiA study of densification and on factors affecting the density of Nix–Fe 100

Cited by: 5

High-Energy Ball-Milling Synthesis and Densification of Fe

High-Energy Ball-Milling Synthesis and Densification of Fe-Co Alloy Nanopowders by Field-Activated Sintering (FAST) The ball-milling of Fe, Co and Mo powders leads to alloying the element

Ball Mill Critical SpeedWorking Principle YouTube

Jun 19, 2015The effect of Ball Mill RPM speed going from sub-critical to super-critical helps understand the Ball Mill Working Principles of ball-on-ball VS ball-on-shell grinding. The Motion of the Ball

Magnetocaloric effect in high-energy ball-milled Gd5Si2Ge2

Nanopowders. Structural transition. reveal that the high-energy ball milling produces amorphous phase. The Fe powder-added Gd 5 Si 2 Ge 2 alloy displays completely amorphous nature whereas the virgin and Gd 5 Si 2 Ge 1.9 Fe 0.1 alloys show signature of the nanocrystallites in the amorphous matrix.

Saturation magnetization studies on iron-nickel ball

Nov 01, 2018Saturation magnetization studies on iron-nickel ball milling nanopowders and spark plasma sintered specimens most shell of the atom. Initially, from the hysteresis loops, Ms was calculated and hysteresis loop of 40 wt% Ni-Fe (32 Hours Milling Linda L. HussamiA study of densification and on factors affecting the density of Nix–Fe 100

High-Energy Ball-Milling Synthesis and Densification of Fe

High-Energy Ball-Milling Synthesis and Densification of Fe-Co Alloy Nanopowders by Field-Activated Sintering (FAST) The ball-milling of Fe, Co and Mo powders leads to alloying the element

HoFe3 magnetic nanopowders fabricated by high energy ball

As the ball milling time increased from 2 to 8 h, the reflection peaks intensity ratio I(002)/I(101), which indicated the degree of c-axis crystal texture of the SmCo6.6Nb0.4 phase, increased

Contamination from the Milling Atmosphere and its Effect

Contamination from the Milling Atmosphere and its Effect on Magnetic Properties of Fe/Al Nanopowders. Jani S 1, Sudeesh V 2, Nehra J 3, Lakshmi N 4 and Brajpuriya R 5 * FeAl nanosystems had been prepared by means of high energy ball milling for 5, 15, and 20 h in air environment to observe mechanochemical reactions with atmospheric oxygen

Resistive λ -sensors based on ball milled Fe DeepDyve

Sep 20, 2007Read "Resistive λ -sensors based on ball milled Fe-doped SrTiO 3 nanopowders obtained by self-propagating high-temperature synthesis (SHS), Sensors and Actuators B: Chemical" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

Ball Milling method for synthesis of nanomaterials

Jun 15, 20124. Ball milling is a mechanical process and thus all the structural and chemical changes are produced by mechanical energy. I have seen an interesting image at for ball milling method at wikipedia. You can see the image here. Advantages of ball milling process: 1. Nanopowders of 2 to 20 nm in size can be produced.

Synthesis of Nanomaterials by High Energy Ball Milling

For all nanocrystalline materials prepared by high-energy ball milling synthesis route, surface and interface contamination is a major concern. In particular, mechanical attributed contamination by the milling tools (Fe or WC) as well as ambient gas (trace impurities such as O 2, N 2 in rare gases) can be problems for high-energy ball milling

Structural and magnetic properties of Fe2TiO5 nanopowders

We investigate the structural and magnetic properties of Fe 2 TiO 5 nanopowders prepared by ball-milling and post annealing. From the structural analysis, we observe the crystalline signature of the pseudobrookite phase.

Fe- and Eu-doped TiO2 Photocatalytical Materials Prepared

Abstract. TiO 2 nanopowders, doped with Fe 3+ and Eu 3+ were obtained by high-energy ball milling and their physical properties were investigated as a function of the doping content and ball milling time. A noticeable red shift and high photoactivity in the degradation and catalytic oxidation reactions of styrene and phenol were found for all doped specimens.

Influence of Thermal-Treatment Effects on the Structural

Samples of Sn1−x Fex O2−y (with x ranging from 0.11 to 0.33) were processed in a planetary ball mill, subsequently HCl-washed to eliminate metallic iron impurities introduced by the milling

A study of densification and on factors affecting the

A study of densification and on factors affecting the density of Ni x -Fe100 X nanopowders prepared by mechanical alloying and sintered by spark plasma

Magnetocaloric effect in high-energy ball-milled Gd5Si2Ge2

Magnetocaloric effect in high-energy ball-milled Gd5Si2Ge2 and Gd5Si2Ge2/Fe nanopowders Article in Journal of Magnetism and Magnetic Materials 320(8):1479–1484 April 2008 with 49 Reads

Resistive λ -sensors based on ball milled Fe DeepDyve

Sep 20, 2007Read "Resistive λ -sensors based on ball milled Fe-doped SrTiO 3 nanopowders obtained by self-propagating high-temperature synthesis (SHS), Sensors and Actuators B: Chemical" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

Fe- and Eu-doped TiO2 Photocatalytical Materials Prepared

Abstract. TiO 2 nanopowders, doped with Fe 3+ and Eu 3+ were obtained by high-energy ball milling and their physical properties were investigated as a function of the doping content and ball milling time. A noticeable red shift and high photoactivity in the degradation and catalytic oxidation reactions of styrene and phenol were found for all doped specimens.

Magnetocaloric effect in high-energy ball-milled Gd5Si2Ge2

Magnetocaloric effect in high-energy ball-milled Gd5Si2Ge2 and Gd5Si2Ge2/Fe nanopowders Article in Journal of Magnetism and Magnetic Materials 320(8):1479–1484 April 2008 with 49 Reads

Quasicrystal phase formation in Al-Cu-Fe nanopowders

Quasicrystal phase formation in Al-Cu-Fe nanopowders during field-activated sintering (FAST) formed directly during high-energy ball milling of the Al–Cu–Fe mixtures.The X-ray and scanning

Effect of Particle Size on Thermal Properties of

The nanopowders of Cu, Ni, Fe and Cr have been prepared by ball milling the pure elemental metal powders in a Retch planetary PM 100 ball mill. The time of milling has been extended upto 32 hours.

(PDF) Fe-doped SnO 2 nanopowders obtained by sol–gel and

Keywords Fe and SnO2 Sol–gel method Ball milling Thermal treatment Mössbauer spectrometry 1 Introduction The progress in the field of spin-based electronics critically depends on the devel- opment of new semiconductors. Oxide diluted magnetic semiconductors, ODMS, in which nonmagnetic oxide semiconductors are doped with just a

STUDY ON THE EFFECT OF HIGH ENERGY BALL MILLING (A

study on the effect of high energy ball milling (a nano material process) on the microstructure and mechanical properties of a (al-si-fe-cu) alloy a thesis submitted in partial fulfillment of the

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A study of densification and on factors affecting the

A study of densification and on factors affecting the density of Ni x -Fe100 X nanopowders prepared by mechanical alloying and sintered by spark plasma

Synthesis of CuO nanopowders by high-energy ball-milling

Oct 12, 2015In this research, nearly spherical CuO nanopowders (NPs) were synthesized in a high-energy ball-milling method at room temperature for different milling times (20 and 40 h) at dry medium. The structure, particle size, purity and morphology of the resulting CuO NPs were characterized by X-ray diffraction, inductively coupled plasma and scanning electron microscopy (SEM) techniques.

Influence of Thermal-Treatment Effects on the Structural

Samples of Sn1−x Fex O2−y (with x ranging from 0.11 to 0.33) were processed in a planetary ball mill, subsequently HCl-washed to eliminate metallic iron impurities introduced by the milling

Influence of Thermal-Treatment Effects on the Structural

Jan 10, 2020In this research work, iron-doped tin dioxide nanoparticles were successfully produced by high-energy ball-milling and their structural and magnetic properties were evaluated by means of room temperature X-ray diffraction, Mössbauer spectroscopy, and vibrating sample magnetometry. In order to evaluate the thermal stability of the compounds, samples were subjected to a thermal treatment and

Hybrid CuxO−TiO2 Nanopowders Prepared by Ball Milling for

Hybrid nanocomposites of Cu 2 O−(R)TiO 2,CuO−(R)TiO 2,and Cu 3 TiO 4 −(R)TiO 2 (where R represents the rutile phase of TiO 2) nanopowders (NPs) were produced via solid state reaction followed by 20 h of ball milling; their photocatalytic

Characterization of Fe Based Nanopowders Synthesized by

Nanosized Fe based powders have been synthesized by both chemical vapor condensation (CVC) and plasma arc discharge (PAD) processes. Fe, Fe-C and Fe-N nanopowders were successfully synthesized. The influence of experimental parameters on microstructures and phase composition of nanopowders was investigated. The prepared powders were nearly spherical in shape and core-shell

Evolution of morphology and magnetism of Ho(Fe0.5Co0.5)3

Dr. Anna Bajorek and colleagues from the University of Silesia in Katowice (Poland) developed a method to produce Ho(Fe 0.5 Co 0.5) 3 nanopowders via high-energy ball milling with enhanced magnetic parameters as compared to its bulk analogue, and investigated the effect of used ball-milling parameters on the morphology and magnetism in as