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Photophysical properties of ball milled silicon

Photophysical properties of ball milled silicon nanostructures† Ankit Goyal,* a Menno Demmenie,a Chia-Ching Huang,a Peter Schall a and Katerina Dohnalova a

Structural and magnetic properties of ball-milled

2008-4-11  ball-milled ribbons of the above composition for possible use as planar inductors. The ribbons were obtained by rapid solidification. The resulting ribbon samples were annealed at 300 °C for 2 h to cause embrittlement. They were found to have soft magnetic properties 4 M s 13 kG, H 100 Oe, and H c 0.5 Oe . The brittle ribbons were ball milled using tungsten carbide vials and

Physicochemical properties of ball milled boron

2015-1-1  In the wet milling process, the properties of suspension such as viscosity, solid concentrate, and pH must be considered in addition to the properties of powder,. Using the ball milling process, various boron containing materials were synthesized.

HYDROGENATION PROPERTIES OF BALL-MILLED Mg-Ti-C

The ball-milled composite adsorbed 3.5 wt.% H2 within 10 min at 623 K. However, hydrogen storage capacity of the composite aged on the air for 7 months remarkably

Powder properties of hydrogenated ball-milled

Ball milling is an effective way of producing defective and nanostructured graphite. In this work, the hydrogen storage properties of graphite, ball-milled in a tungstencarbidemilling pot under 3 bar hydrogen for various times (0–40 h), were investigated by TGA-Mass Spectrometry, XRD, SEM and laser diffraction particle size analysis.

Structure and Electrochemical Properties of Ball‐Milled

Structure and Electrochemical Properties of Ball‐Milled La 15 Fe 2 Ni 72 Mn 7 B 2 Al 2 Hydrogen Storage Alloys with Graphene

Structural properties of mechanically ball-milled porous

2018-5-30  porous silicon (PS). Silicon wafers were crushed, ball milled for various milling times and pressed into pellets under the pressure of 4,000 psi (276 bar). Samples were annealed in H 2 /Ar and in air. Structural properties of PS were investigated using X-ray

Magnetic properties of ball-milled SrFe 12 O 19

2015-9-15  The room-temperature magnetic properties of ball-milled strontium hexaferrite particles consolidated by spark-plasma sintering are strongly influenced by the milling time. Scanning electron

Powder properties of hydrogenated ball-milled

Ball milling is an effective way of producing defective and nanostructured graphite. In this work, the hydrogen storage properties of graphite, ball-milled in a tungsten carbide milling pot under 3 bar hydrogen for various times (0–40 h), were investigated by TGA-Mass Spectrometry, XRD, SEM and laser diffraction particle size analysis.

Structural and magnetic properties of ball milled copper

The structural and magnetic evolution in copper ferrite (CuFe2O4! caused by high-energy ball milling are investigated by x-ray diffraction, Mo¨ssbauer spectroscopy, and magnetization measurements. Initially, the milling process reduces the average grain size of CuFe2O4 to about 6 nm and induces cation redistribution between A and B sites.

Photophysical properties of ball milled silicon

Photophysical properties of ball milled silicon nanostructures In view of that, high-energy ball milling is a method that can be used to produce large quantities of highly strained SiNCs. In this technique, balls with high kinetic energy collide with the walls of a chamber and other balls, crushing the particles in between, followed by

Magnetic properties of ball-milled alloys Gd 100- x Ni

Magnetic and magnetothermal properties of ball-milled Gd 100- x Ni x (x = 25, 40, 50) alloys were studied. The second-order magnetic transition is observed in all samples at the Curie temperature, which decreases significantly with increasing Ni content. The Curie temperatures are 123 K for Gd 75 Ni 25 >, 99 K for Gd<SUB>60</SUB>Ni<SUB>40</SUB> and 73 K for Gd<SUB>50</SUB>Ni<SUB>50</SUB>.

Magnetic and magnetocaloric properties of ball milled

2020-6-1  3 by ball milling has been studied by investigating the change in the magnetic and magnetocaloric properties. Ball milling is found to enhance the strength of the ferromagnetic component. An analysis based on the Arrott plots shows clear difference in the critical exponents between the bulk and the ball milled samples.

Structural and magnetic properties of ball milled copper

Structural and magnetic properties of ball milled copper ferrite G. F. Goya and H. R. Rechenberg Instituto de Fisica, Universidade de Sa ˜o Paulo, CP 66318, 05315-970 Sao Paulo SP, Brazil

Magnetic and magnetocaloric properties of ball milled

2019-3-19  Effect of particle size reduction of the intermetallic compound Nd 5 Ge 3 by ball milling has been studied by investigating the change in the magnetic and magnetocaloric properties. Ball milling is found to enhance the strength of the ferromagnetic component. An analysis based on the Arrott plots shows clear difference in the critical exponents between the bulk and the ball milled samples.

Powder properties of hydrogenated ball-milled

Abstract. Ball milling is an effective way of producing defective and nanostructured graphite. In this work, the hydrogen storage properties of graphite, ball-milled in a tungsten carbide milling pot under 3 bar hydrogen for various times (0–40 h), were investigated by TGA-Mass Spectrometry, XRD, SEM and laser diffraction particle size analysis.

Magnetic properties of ball milled Fe-40 Al at.% alloys

Magnetic properties of ball milled Fe-40 Al at.% alloys Abstract: A direct correlation between the lattice parameter and the saturation magnetization, during the disordering (ball milling) and posterior reordering (annealing) processes, has been found in Fe-40 Al at.% compounds. These results indicate that the paramagnetic-ferromagnetic

HYDROGENATION PROPERTIES OF BALL-MILLED Mg-Ti-C

The hydrogen storage properties of ball-milled Mg-Ti-Zr-C composite (1.8 wt.% Ti, 1.9 wt.% Zr and 0.2 wt.% C) were investigated. It has been previously shown, that the addition of Ti, Zr and C

Structural properties of mechanically ball-milled porous

2018-5-30  mechanically ball-milled Si powder, (c) green-compacted PS pellet and (d) annealed PS pellet at 700 C for 1 hour. milling time. 2 Figure 3. clearly observed at 2Surface morphology of (a) green-compacted PS pellet and (b) annealed PS pellet at 700 C for 1 hour. 3.2 Effect of the milling time on the physical properties of PS pellets

Magnetic properties of nanostructured ball-milled Fe

2006-7-21  Magnetic properties of nanostructured ball-milled Fe and Fe 50 Co 50 alloy. S Azzaza 1, S Alleg 1, H Moumeni 1,2, A R Nemamcha 3, J L Rehspringer 4 and J M Greneche 5. Published 21 July 2006 • IOP Publishing Ltd Journal of Physics: Condensed Matter, Volume 18, Number 31

Photophysical properties of ball milled silicon

Photophysical properties of ball milled silicon nanostructures In view of that, high-energy ball milling is a method that can be used to produce large quantities of highly strained SiNCs. In this technique, balls with high kinetic energy collide with the walls of a chamber and other balls, crushing the particles in between, followed by

Magnetic properties of ball-milled alloys Gd 100- x Ni

Magnetic and magnetothermal properties of ball-milled Gd 100- x Ni x (x = 25, 40, 50) alloys were studied. The second-order magnetic transition is observed in all samples at the Curie temperature, which decreases significantly with increasing Ni content. The Curie temperatures are 123 K for Gd 75 Ni 25 >, 99 K for Gd<SUB>60</SUB>Ni<SUB>40</SUB> and 73 K for Gd<SUB>50</SUB>Ni<SUB>50</SUB>.

Magnetic and magnetocaloric properties of ball milled

2020-6-1  3 by ball milling has been studied by investigating the change in the magnetic and magnetocaloric properties. Ball milling is found to enhance the strength of the ferromagnetic component. An analysis based on the Arrott plots shows clear difference in the critical exponents between the bulk and the ball milled samples.

Magnetic and magnetocaloric properties of ball milled

2019-3-19  Effect of particle size reduction of the intermetallic compound Nd 5 Ge 3 by ball milling has been studied by investigating the change in the magnetic and magnetocaloric properties. Ball milling is found to enhance the strength of the ferromagnetic component. An analysis based on the Arrott plots shows clear difference in the critical exponents between the bulk and the ball milled samples.

Magnetic properties of ball milled CuFeMn Request

The magnetic properties such as magnetic saturation, coercivity and remanence of ball milled Cu Co alloy in the presence of Mn significantly altered after annealing in the temperature range 350

Magnetic properties of ball milled Fe-40 Al at.% alloys

Magnetic properties of ball milled Fe-40 Al at.% alloys Abstract: A direct correlation between the lattice parameter and the saturation magnetization, during the disordering (ball milling) and posterior reordering (annealing) processes, has been found in Fe-40 Al at.% compounds. These results indicate that the paramagnetic-ferromagnetic

Structural and magnetic properties of ball milled copper

Structural and magnetic properties of ball milled copper ferrite G. F. Goya and H. R. Rechenberg Instituto de Fisica, Universidade de Sa ˜o Paulo, CP 66318, 05315-970 Sao Paulo SP, Brazil

Magnetic properties of ball-milled SrFe12O19

Magnetic properties of ball-milled SrFe 12 O 19 particles consolidated by Spark-Plasma Sintering Marian Stingaciu,1 Martin Topole,2 Paul McGuiness,2 and Mogens Christensen a, 1 1 Center for Materials Crystallography, Department of Chemistry and iNANO, Aarhus University, DK-8000 Aarhus C, Denmark

Ball-Milled Carbon Nanomaterials for Energy and

2021-3-12  Ball-milled CNMs (BM-CNMs) are a novel class of engineered materials that may provide new opportunities to satisfy the need. To promote the research on BM-CNMs, this work provides a comprehensive review on recent research development in (1) synthesis of various types of BM-CNMs, (2) effects of ball milling on physicochemical properties of BM

Ball-milled sulfur-doped graphene materials contain

Ball-milled sulfur-doped graphene materials contain metallic impurities originating from ball-milling apparatus: their influence on the catalytic properties† Chun Kiang Chua,a Zdeněk Sofer,b Bahareh Khezri,a Richard D. Webster a and Martin Pumera * a