Microstructural Study of Thin Films CuFe Obtained by ...

The effects of milling time and impact force, defined as the ball-to-powder weight ratio (BPR), on the elemental diffusion during synthesis of nanostructured Fe at.%Cu alloy via MA process were evaluated in the current work.

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Structure and magnetic properties of nanocrystalline Ni Zn ...

Structure and magnetic properties of nanocrystalline Ni 0?64Zn 0?36Fe 2O 4 powders prepared by ball milling K. Gheisari*1, S. Shahriari2, A. Rezvanpour3 and S. Javadpour4 In this study, nanocrystalline Ni 0?64Zn 0?36Fe 2O 4 powders were prepared using a planetary ball mill. The evolution of the microstructure and magnetic properties during the milling were studied by X-

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Magnetic and structural properties of nanostructured Fe ...

With this objective, in the present work, we have systematically synthesized nanostructured Fe–20Al–2Cr alloy with MA process. The effects of Cr element as well as the milling time on the evolution of structure, microstructure and magnetic properties of the resulting alloy were investigated.

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Magnetic Interactions in Ball-Milled Spinel Ferrites

interparticle interactions. Three samples having Fe 3O 4/CH 3(OH) mass ratios R of 3 %, 10 % and 50 % wt. were milled for several hours until particle size reached a steady value (<d> ~ 10 nm). A detailed study of static and dynamic magnetic properties has been undertaken by measuring magnetization, ac susceptibility and Möss data.

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Structure and Magnetic Properties of Ternary Nanosized ...

Ternary Fe 72 Al 26 Sn 2 and Cu 70 Fe 18 Co 12 alloys were obtained by mechanical alloying of pure Fe, Al, Sn, Cu and Co powders using a high energy ball mill. X-ray diffraction and electron microscopy supported by magnetic measurements have been applied to follow changes in the microstructure, phase composition and magnetic properties in dependence on milling time.

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Structure and Microstructure Properties of Ball Milled Fe-Zn

els of MA. Nanostructured Fe-based magnetic materials have received considerable attention not only because of their unusual mechanical and magnetic properties which stem from the refinement of the crystallite size to the na-nometer scale and from the enhanced density of defects [ 11], but also they are promising candidates for wide appli-

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Magnetic properties of ball-milled FeAl nanograins - szfki.hu

by impurities, mixing and disordering of the components [3, 4]. In this paper the magnetic properties of ball-milled FeAl will be investigated, where a peculiar magnetic structure consisting of a nonmagnetic volume surrounded by a surface magnetic layer was found [5].

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Phase Transformation in the Ball Milled Fe 31 Co 31 Nb 8 B ...

Phase Transformation in the Ball Milled Fe 31 ... “Effect of Boron on Structural and Magnetic Properties of the Fe 60 Al 40 System Prepared by ... A. R. Nemamcha, J. L. Rehspringer and J. M. Greneche, “Magnetic Properties of Nanostructured Ball-Milled Fe and Fe …

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Physically synthesized Ni-Cu nanoparticles for magnetic ...

Results. It was found that the desired alloy is composed of 71% nickel and 29% copper by weight. It was observed that the coarse sand-grinded powder has a Curie temperature of 345 K and the fine ball-milled powder shows a temperature of 319 K – 320 K.

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Variation of magnetic properties in heat treated and ball ...

The magnetic properties of three samples of Fe3Al—as melted and annealed, high energy ball milled and milled sample followed by annealing—have been studied using a combination of X-ray diffraction, Transmission electron microscopy, room temperature 57Fe …

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Magnetic and structural properties of nanostructured FeAl ...

MAGNETIC AND STRUCTURAL PROPERTIES OF NANOSTRUCTURED FEAL ALLOYS PRODUCED BY MECHANICAL ALLOYING 71 TABLE I. M¨oss Parameters of samples of the Fe 1¡xAlx system milled during 24 hours. Hyperfine field (HF) values are in Tesla, the isomer shift (IS), line width (¡) and the quadrupolar shift (QS) are in mm/s.

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Physically synthesized Ni-Cu nanoparticles for magnetic ...

Results. It was found that the desired alloy is composed of 71% nickel and 29% copper by weight. It was observed that the coarse sand-grinded powder has a Curie temperature of 345 K and the fine ball-milled powder shows a temperature of 319 K – 320 K.

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Structure and Microstructure Properties of Ball Milled Fe-Zn

els of MA. Nanostructured Fe-based magnetic materials have received considerable attention not only because of their unusual mechanical and magnetic properties which stem from the refinement of the crystallite size to the na-nometer scale and from the enhanced density of defects [ 11], but also they are promising candidates for wide appli-

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Magnetic properties of ball-milled SrFe12O19 particles ...

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

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Magnetic properties of nanostructured spinel ferrites and ...

Magnetic properties of nanostructured spinel ... N¶eel temperature of the nanostructured Ni{Zn ferrite, the sample was milled in air using a planetary ball mill (Fritsch Pulverisette P7). Tungsten carbide vials and ... Thus an increase in the population of magnetic ions (Fe3+ and/or Pramana { J. Phys., Vol. 65, No. 5, November 2005 895.

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Size dependence of the magnetic and hyperfine properties ...

The presence of one additional sextet which corresponds to the ∠-Fe phase is also determined in agreement with XRD data analysis. Magnetic measurements suggest the suppression of the Morin transition in the milled samples and the absence of thermal relaxation effects in agreement with the Möss spectroscopy results.

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Structural Analysis and Magnetic Properties of FeCo Alloys ...

A systematic study on the structural and magnetic properties of alloys (, in wt. percent) obtained by mechanical alloying is presented. Elemental powders of Fe and Co mixed in an adequate weight ratio were milled at room temperature in a shaker mixer mill using vials and balls of hardened steel as milling media with a ball : powder weight ratio of 12 : 1.

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Magnetic Microwave and absorbing properties Fe - Co of alloy

Nanocrystalline Fe( x) Cox mixtures have been prepared by mechanical alloying using a planetary ball mill under several milling conditions. Their structures and magnetic properties were investigated. Mechanical alloying is a non-equilibrium process for materials synthesis. The

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Structure and magnetic properties of the α‐FeB phase ...

The crystal structure and the magnetic properties of the low‐temperature α‐FeB phase obtained by working in a mill are investigated by X‐ray diffraction analysis, Möss study, and magnetic …

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RAPID COMMUNICATION Field-ball milling induced …

effect of an external magnetic field on field-ball milled particles. Nd 2Fe 14B and Sm 2Co 17 based coarse powders (∼ mesh 325) were obtained by pulverizing ingots. The grain size in the ingot is of the order of tens of micrometres. The powders were then ball milled in a magnetic field (>3kOe).

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Nanostructured Materials - Gleiter - 1992 - Advanced ...

Hasan Kotan, Kris A. Darling, Mostafa Saber, Carl C. Koch and Ronald O. Scattergood, Effect of zirconium on grain growth and mechanical properties of a ball-milled nanocrystalline FeNi alloy, Journal of Alloys and Compounds, 551, (621), (2013).

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Size dependence of the magnetic and hyperfine properties ...

properties of nanostructured hematite ( -Fe 2O3) ... transition in the milled samples and the absence of thermal relaxation effects in agreement with the Möss spectroscopy results. ... structural and magnetic properties of hematite powders ground by the ball milling technique. The structural and microstructural parameters of hematite and ...

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Structural and Morphological Study of a Series of Ball ...

Structural and Morphological Study of a Series of Ball Milled Nanocrystalline Fe 1−x Al x (0.3 ≤ x ≤ 0.6) Alloys. ... are an important class of nanostructured magnetic materials. ... It is wellknown that the mechanical and magnetic properties of these systems are intimately related to the microstructure and the degree of disorder in the ...

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Optimization of the magnetic properties of nanostructured ...

Abstract The structural and magnetic properties of ball-milled Fe-doped Y Co x Fe x (0 ≤ x ≤ 0.5) were investigated. The magnetization increases with Fe-doping up to the solid solubility limit, x = 0.3 without destroying the crystal structure or degrading the coercivity.

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Magnetic properties of nanostructured CuFe2O4

The structural evolution and magnetic properties of nanostructured copper ferrite, CuFe 2 O 4 , have been investigated by x-ray diffraction, M¨oss spectroscopy, and magnetization measurements.

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Magnetic properties of ball-milled TbFe2 and TbFe2B - [PDF ...

Magnetic properties of ball-milled TbFe2 and TbFe2B 171are antiparallel and the net magnetic moment is domi-nated by the Tb moment. The magnetic moment per iron atom has been reported to be 164 . As in the case of hydrogenated compounds, the addition of boron may cause the depletion of the 3d band of Fe thereby increas-ing the Fe moment and ...

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Ball Milled Properties - wildcer.org.in

Magnetic properties of ball milled Fe Al at.% alloys … 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 Al At.% compounds.

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Optimization of the magnetic properties of nanostructured ...

The structural and magnetic properties of ball-milled Fe-doped YCo 5 − x Fe x ( 0 ≤ x ≤ 0 . 5 ) were investigated. The magnetization increases with Fe-doping up to the solid solubility limit, x = 0 . 3 without destroying the crystal structure or degrad- ing the coercivity.

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Evaluation the Impact of Annealing on Phase Evolution ...

Key words: Ferrite, high-energy ball milling, magnetic properties, nanostructured materials, annealing INTRODUCTION Lithium and substituted lithium ferrites are excellent materials for microwave and electronic applications due to their low cost, good magneto-dielectric properties and high Curie temperatures.1 The magnetic properties of Li 0.5Fe ...

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Comparison of structure and magnetic properties of Mn–Zn ...

Nanocrystalline Mn 0.5 Zn 0.5 Fe 2 O 4 ferrite was successfully synthesized by ball milling a powder mixture of MnO, ZnO, and Fe 2 O 3 under argon and oxygen atmospheres. The effects of the milling time, milling atmosphere, and annealing temperature on the milled powders were examined.

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Nanostructured Fe50Ni50 alloy prepared by mechanical ...

Results of AGM indicated that the alloying process influenced the magnetic properties of the materials. AB - Nanocrystalline Fe50Ni50 alloy was successfully prepared by the mechanical alloying process using planetary high energy ball mill. Fe and Ni elemental powder were milled for various times up to 48 h.

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Synthesis and characterization of BaFe12O19/Fe3O4 and ...

Magnetic properties In this research mixtures of barium ferrite and graphite with different molar ratios were mixed and milled in a planetary ball mill to produce a BaFe 12O 19/Fe 3O 4 nano-composite. Some of the milled samples were then heat treated at 750 and 850 °C under vacuum to synthesize BaFe 12O 19/Fe/Fe 3O 4 composite. The effects of

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Optimization of the magnetic properties of nanostructured ...

Abstract The structural and magnetic properties of ball-milled Fe-doped Y Co x Fe x (0 ≤ x ≤ 0.5) were investigated. The magnetization increases with Fe-doping up to the solid solubility limit, x = 0.3 without destroying the crystal structure or degrading the coercivity.

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ball milled formation - wastetofuel.eu

Ball Milled FormationFoteMine Heavy Mining , ball milled formation The room-temperature magnetic properties of ball-milled strontium hexaferrite particles . More; Effect of cellulose crystallinity on the formation of a , Effect of cellulose crystallinity on the formation of a liquid intermediate and on product distribution during pyrolysis. More

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Effect of ball milling and post annealing on structural ...

The effect of ball milling on the structural, magnetic and exchange bias properties of Ni 50 Mn 36 Fe 2 Sb 12 Heusler alloys was studied. The ball milled samples exhibited coexisting austenite and martensite phases at room temperature, while annealing supresses the austenite phase completely.

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Structural, Magnetic, and Dielectric Investigations of the ...

Structural, Magnetic, ... Figure 1 shows the XRD patterns for the as-milled and sintered (Fe 2 O 3) 0.50 (Al 2 O 3) 0.50 compounds. The Rietveld refinement in the as-milled compound ... Phase evolution and magnetic properties of a high-energy ball-milled hematite-alumina system. J. Appl.

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SYNTHESIS, GRAIN GROWTH, Cu-DOPING, AND MAGNETIC ...

Magnetic Properties of Ni–Zn Ferrite 1069 Fig. 1. XRD patterns of ball-milled powders after different milling times. only the sharp peaks of NiO, ZnO, and Fe2O3 compounds. As can be seen, the XRD peaks of NiO, ZnO, and Fe2O3 were broadened and their intensity gradually reduced during ball milling as a result of refinement of grain size and ...

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Effect of Dry-Ice Blasting on Structure and Magnetic ...

In this work, the nanostructured Fe Al powders with a very low degree of order were used as feedstock to deposit coatings by APS combined with dry-ice blasting. The microstructure, phase structure, adhesive strength, and magnetic properties of Fe Al coatings were studied in detail.

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Magnetic Properties of Tb(Ni Fe x = 0 2, 0.6) Crystalline ...

of iron doping on the magnetic properties of chosen com-pounds. It is useful in determining the best application parameters and designing the nanoscale magnetic mate-rials. The aim of presented work was to study magnetic properties and magnetocaloric e ect in Tb(Ni 1 xeF x) 3 ( x= 0:2, 0.6) compounds, in bulk crystalline and ball-milled powder ...

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Comparison of structure and magnetic properties of Mn–Zn ...

Nanocrystalline Mn 0.5 Zn 0.5 Fe 2 O 4 ferrite was successfully synthesized by ball milling a powder mixture of MnO, ZnO, and Fe 2 O 3 under argon and oxygen atmospheres. The effects of the milling time, milling atmosphere, and annealing temperature on the milled powders were examined.

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