CobaltMaghrebV1, PascalFrancis, Curation, bibRecord, 000132

Magnetic properties of nanostructured ball-milled Fe and Fe50Co50 alloy

Identifieur interne : 000132 ( PascalFrancis/Curation ); précédent : 000131; suivant : 000133

Magnetic properties of nanostructured ball-milled Fe and Fe50Co50 alloy

Auteurs : S. Azzaza [Algérie] ; S. Alleg [Algérie] ; H. Moumeni [Algérie] ; A. R. Nemamcha [Algérie] ; J. L. Rehspringer [France] ; J. M. Greneche [France]

Source :

Journal of physics. Condensed matter : (Print) [ 0953-8984 ] ; 2006.

RBID : Pascal:06-0377962

Descripteurs français

Pascal (Inist)
- Aimantation, Broyeur boulet, Diffraction RX, Calorimétrie différentielle balayage, Aimantation saturation, Microstructure, Grosseur grain, Transformation phase, Métallurgie poudre, Transformation ordre désordre, Traitement thermique, Paramètre cristallin, Point Curie, Nanoparticule, Fer alliage, Cobalt alliage, Fer, Nanocristal, Métal transition alliage, Métal transition, 7575.
Wicri :
- topic : Fer.

English descriptors

KwdEn :
- Ball mill, Cobalt alloys, Curie point, Differential scanning calorimetry, Grain size, Heat treatments, Iron, Iron alloys, Lattice parameters, Magnetization, Microstructure, Nanocrystal, Nanoparticles, Order-disorder transformations, Phase transformations, Powder metallurgy, Saturation magnetization, Transition element alloys, Transition elements, XRD.

Abstract

Nanostructured Fe and Fe₅₀Co₅₀ powders were prepared by high-energy ball milling. Microstructural and magnetic properties changes with milling time were followed by x-ray diffraction, differential scanning calorimetry and vibrating sample magnetometry. The nonequilibrium microstructure originates from a grain size reduction to about 12 nm and the introduction of internal strain up to 1.5% (root-mean-square strain). The occurrence of disorder in the ball-milled powders is evidenced by the broad exothermic reaction during the heating of ball-milled samples, the variation of lattice parameters and the increase of the saturation magnetization during the first 3 h of milling for Fe and continuously for the Fe₅₀Co₅₀ powder mixture. According to both the reduction of Fe Curie temperature, T_c, and the increase of the phase transformation T_α→γ, the paramagnetic temperature domain of nanostructured bcc α-Fe is extended by about 50 °C. The Fe₅₀Co₅₀ nanostructured powder behaves as a soft ferromagnet with low values of both the coercive field and the squareness ratio M_r/M_s.

A01	`01`	`1`		`@0 0953-8984`
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A03		`1`		`@0 J. phys., Condens. matter : (Print)`
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A08	`01`	`1`	`ENG`	`@1 Magnetic properties of nanostructured ball-milled Fe and Fe₅₀Co₅₀ alloy`
A11	`01`	`1`		`@1 AZZAZA (S.)`
A11	`02`	`1`		`@1 ALLEG (S.)`
A11	`03`	`1`		`@1 MOUMENI (H.)`
A11	`04`	`1`		`@1 NEMAMCHA (A. R.)`
A11	`05`	`1`		`@1 REHSPRINGER (J. L.)`
A11	`06`	`1`		`@1 GRENECHE (J. M.)`
A14	`01`			`@1 Laboratoire de Magnétisme et Spectroscopie des Solides (LM2S), Département de Physique, Faculté des Sciences, Université de Annaba, BP 12 @2 (23000) Annaba @3 DZA @Z 1 aut. @Z 2 aut. @Z 3 aut.`
A14	`02`			`@1 Département de Physique, Faculté des Sciences et de l'Ingénierie, Université de Guelma, BP 401 @2 (24000) Guelma @3 DZA @Z 3 aut.`
A14	`03`			`@1 Laboratoire d'Analyse Industrielle et Génie des Matériaux, Faculté des Sciences et de l'Ingénierie, Université de Guelma, BP 401 @2 (24000) Guelma @3 DZA @Z 4 aut.`
A14	`04`			`@1 Groupe de Matériaux Inorganiques, Institut de Physique et de Chimie des Matériaux de Strasbourg, UMR 7504 CNRS-ULP, 23 rue de Loess @2 67034 Strasbourg @3 FRA @Z 5 aut.`
A14	`05`			`@1 Laboratoire de Physique de l'Etat Condensé, UMR 6087 CNRS, Université du Maine, Faculté des Sciences @2 72085 Le Mans @3 FRA @Z 6 aut.`
A20				`@1 7257-7272`
A21				`@1 2006`
A23	`01`			`@0 ENG`
A43	`01`			`@1 INIST @2 577E2 @5 354000157013870240`
A44				`@0 0000 @1 © 2006 INIST-CNRS. All rights reserved.`
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C01	`01`		`ENG`	@0 Nanostructured Fe and Fe₅₀Co₅₀ powders were prepared by high-energy ball milling. Microstructural and magnetic properties changes with milling time were followed by x-ray diffraction, differential scanning calorimetry and vibrating sample magnetometry. The nonequilibrium microstructure originates from a grain size reduction to about 12 nm and the introduction of internal strain up to 1.5% (root-mean-square strain). The occurrence of disorder in the ball-milled powders is evidenced by the broad exothermic reaction during the heating of ball-milled samples, the variation of lattice parameters and the increase of the saturation magnetization during the first 3 h of milling for Fe and continuously for the Fe₅₀Co₅₀ powder mixture. According to both the reduction of Fe Curie temperature, T_c, and the increase of the phase transformation T_α→γ, the paramagnetic temperature domain of nanostructured bcc α-Fe is extended by about 50 °C. The Fe₅₀Co₅₀ nanostructured powder behaves as a soft ferromagnet with low values of both the coercive field and the squareness ratio M_r/M_s.
C02	`01`	`3`		`@0 001B70E75`
C03	`01`	`3`	`FRE`	`@0 Aimantation @5 02`
C03	`01`	`3`	`ENG`	`@0 Magnetization @5 02`
C03	`02`	`X`	`FRE`	`@0 Broyeur boulet @5 03`
C03	`02`	`X`	`ENG`	`@0 Ball mill @5 03`
C03	`02`	`X`	`SPA`	`@0 Molino bolas @5 03`
C03	`03`	`3`	`FRE`	`@0 Diffraction RX @5 04`
C03	`03`	`3`	`ENG`	`@0 XRD @5 04`
C03	`04`	`3`	`FRE`	`@0 Calorimétrie différentielle balayage @5 05`
C03	`04`	`3`	`ENG`	`@0 Differential scanning calorimetry @5 05`
C03	`05`	`X`	`FRE`	`@0 Aimantation saturation @5 06`
C03	`05`	`X`	`ENG`	`@0 Saturation magnetization @5 06`
C03	`05`	`X`	`SPA`	`@0 Imanación saturación @5 06`
C03	`06`	`3`	`FRE`	`@0 Microstructure @5 07`
C03	`06`	`3`	`ENG`	`@0 Microstructure @5 07`
C03	`07`	`3`	`FRE`	`@0 Grosseur grain @5 08`
C03	`07`	`3`	`ENG`	`@0 Grain size @5 08`
C03	`08`	`3`	`FRE`	`@0 Transformation phase @5 09`
C03	`08`	`3`	`ENG`	`@0 Phase transformations @5 09`
C03	`09`	`3`	`FRE`	`@0 Métallurgie poudre @5 10`
C03	`09`	`3`	`ENG`	`@0 Powder metallurgy @5 10`
C03	`10`	`3`	`FRE`	`@0 Transformation ordre désordre @5 11`
C03	`10`	`3`	`ENG`	`@0 Order-disorder transformations @5 11`
C03	`11`	`3`	`FRE`	`@0 Traitement thermique @5 12`
C03	`11`	`3`	`ENG`	`@0 Heat treatments @5 12`
C03	`12`	`3`	`FRE`	`@0 Paramètre cristallin @5 13`
C03	`12`	`3`	`ENG`	`@0 Lattice parameters @5 13`
C03	`13`	`3`	`FRE`	`@0 Point Curie @5 14`
C03	`13`	`3`	`ENG`	`@0 Curie point @5 14`
C03	`14`	`3`	`FRE`	`@0 Nanoparticule @5 15`
C03	`14`	`3`	`ENG`	`@0 Nanoparticles @5 15`
C03	`15`	`3`	`FRE`	`@0 Fer alliage @5 16`
C03	`15`	`3`	`ENG`	`@0 Iron alloys @5 16`
C03	`16`	`3`	`FRE`	`@0 Cobalt alliage @5 17`
C03	`16`	`3`	`ENG`	`@0 Cobalt alloys @5 17`
C03	`17`	`3`	`FRE`	`@0 Fer @2 NC @5 20`
C03	`17`	`3`	`ENG`	`@0 Iron @2 NC @5 20`
C03	`18`	`X`	`FRE`	`@0 Nanocristal @5 21`
C03	`18`	`X`	`ENG`	`@0 Nanocrystal @5 21`
C03	`18`	`X`	`SPA`	`@0 Nanocristal @5 21`
C03	`19`	`3`	`FRE`	`@0 Métal transition alliage @5 48`
C03	`19`	`3`	`ENG`	`@0 Transition element alloys @5 48`
C03	`20`	`3`	`FRE`	`@0 Métal transition @5 49`
C03	`20`	`3`	`ENG`	`@0 Transition elements @5 49`
C03	`21`	`3`	`FRE`	`@0 7575 @4 INC @5 60`
N21				`@1 247`

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Pascal:06-0377962

Le document en format XML

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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Magnetic properties of nanostructured ball-milled Fe and Fe<sub>50</sub>
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<series><title level="j" type="main">Journal of physics. Condensed matter : (Print)</title>
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<term>Heat treatments</term>
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<term>Microstructure</term>
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<term>Nanoparticles</term>
<term>Order-disorder transformations</term>
<term>Phase transformations</term>
<term>Powder metallurgy</term>
<term>Saturation magnetization</term>
<term>Transition element alloys</term>
<term>Transition elements</term>
<term>XRD</term>
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<keywords scheme="Pascal" xml:lang="fr"><term>Aimantation</term>
<term>Broyeur boulet</term>
<term>Diffraction RX</term>
<term>Calorimétrie différentielle balayage</term>
<term>Aimantation saturation</term>
<term>Microstructure</term>
<term>Grosseur grain</term>
<term>Transformation phase</term>
<term>Métallurgie poudre</term>
<term>Transformation ordre désordre</term>
<term>Traitement thermique</term>
<term>Paramètre cristallin</term>
<term>Point Curie</term>
<term>Nanoparticule</term>
<term>Fer alliage</term>
<term>Cobalt alliage</term>
<term>Fer</term>
<term>Nanocristal</term>
<term>Métal transition alliage</term>
<term>Métal transition</term>
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<front><div type="abstract" xml:lang="en">Nanostructured Fe and Fe<sub>50</sub>
Co<sub>50</sub>
 powders were prepared by high-energy ball milling. Microstructural and magnetic properties changes with milling time were followed by x-ray diffraction, differential scanning calorimetry and vibrating sample magnetometry. The nonequilibrium microstructure originates from a grain size reduction to about 12 nm and the introduction of internal strain up to 1.5% (root-mean-square strain). The occurrence of disorder in the ball-milled powders is evidenced by the broad exothermic reaction during the heating of ball-milled samples, the variation of lattice parameters and the increase of the saturation magnetization during the first 3 h of milling for Fe and continuously for the Fe<sub>50</sub>
Co<sub>50</sub>
 powder mixture. According to both the reduction of Fe Curie temperature, T<sub>c</sub>
, and the increase of the phase transformation T<sub>α→γ</sub>
, the paramagnetic temperature domain of nanostructured bcc α-Fe is extended by about 50 °C. The Fe<sub>50</sub>
Co<sub>50</sub>
 nanostructured powder behaves as a soft ferromagnet with low values of both the coercive field and the squareness ratio M<sub>r</sub>
/M<sub>s</sub>
.</div>
</front>
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Co<sub>50</sub>
 alloy</s1>
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<fA11 i1="01" i2="1"><s1>AZZAZA (S.)</s1>
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<fA14 i1="01"><s1>Laboratoire de Magnétisme et Spectroscopie des Solides (LM2S), Département de Physique, Faculté des Sciences, Université de Annaba, BP 12</s1>
<s2>(23000) Annaba</s2>
<s3>DZA</s3>
<sZ>1 aut.</sZ>
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<fA14 i1="02"><s1>Département de Physique, Faculté des Sciences et de l'Ingénierie, Université de Guelma, BP 401</s1>
<s2>(24000) Guelma</s2>
<s3>DZA</s3>
<sZ>3 aut.</sZ>
</fA14>
<fA14 i1="03"><s1>Laboratoire d'Analyse Industrielle et Génie des Matériaux, Faculté des Sciences et de l'Ingénierie, Université de Guelma, BP 401</s1>
<s2>(24000) Guelma</s2>
<s3>DZA</s3>
<sZ>4 aut.</sZ>
</fA14>
<fA14 i1="04"><s1>Groupe de Matériaux Inorganiques, Institut de Physique et de Chimie des Matériaux de Strasbourg, UMR 7504 CNRS-ULP, 23 rue de Loess</s1>
<s2>67034 Strasbourg</s2>
<s3>FRA</s3>
<sZ>5 aut.</sZ>
</fA14>
<fA14 i1="05"><s1>Laboratoire de Physique de l'Etat Condensé, UMR 6087 CNRS, Université du Maine, Faculté des Sciences</s1>
<s2>72085 Le Mans</s2>
<s3>FRA</s3>
<sZ>6 aut.</sZ>
</fA14>
<fA20><s1>7257-7272</s1>
</fA20>
<fA21><s1>2006</s1>
</fA21>
<fA23 i1="01"><s0>ENG</s0>
</fA23>
<fA43 i1="01"><s1>INIST</s1>
<s2>577E2</s2>
<s5>354000157013870240</s5>
</fA43>
<fA44><s0>0000</s0>
<s1>© 2006 INIST-CNRS. All rights reserved.</s1>
</fA44>
<fA45><s0>38 ref.</s0>
</fA45>
<fA47 i1="01" i2="1"><s0>06-0377962</s0>
</fA47>
<fA60><s1>P</s1>
</fA60>
<fA61><s0>A</s0>
</fA61>
<fA64 i1="01" i2="1"><s0>Journal of physics. Condensed matter : (Print)</s0>
</fA64>
<fA66 i1="01"><s0>GBR</s0>
</fA66>
<fC01 i1="01" l="ENG"><s0>Nanostructured Fe and Fe<sub>50</sub>
Co<sub>50</sub>
 powders were prepared by high-energy ball milling. Microstructural and magnetic properties changes with milling time were followed by x-ray diffraction, differential scanning calorimetry and vibrating sample magnetometry. The nonequilibrium microstructure originates from a grain size reduction to about 12 nm and the introduction of internal strain up to 1.5% (root-mean-square strain). The occurrence of disorder in the ball-milled powders is evidenced by the broad exothermic reaction during the heating of ball-milled samples, the variation of lattice parameters and the increase of the saturation magnetization during the first 3 h of milling for Fe and continuously for the Fe<sub>50</sub>
Co<sub>50</sub>
 powder mixture. According to both the reduction of Fe Curie temperature, T<sub>c</sub>
, and the increase of the phase transformation T<sub>α→γ</sub>
, the paramagnetic temperature domain of nanostructured bcc α-Fe is extended by about 50 °C. The Fe<sub>50</sub>
Co<sub>50</sub>
 nanostructured powder behaves as a soft ferromagnet with low values of both the coercive field and the squareness ratio M<sub>r</sub>
/M<sub>s</sub>
.</s0>
</fC01>
<fC02 i1="01" i2="3"><s0>001B70E75</s0>
</fC02>
<fC03 i1="01" i2="3" l="FRE"><s0>Aimantation</s0>
<s5>02</s5>
</fC03>
<fC03 i1="01" i2="3" l="ENG"><s0>Magnetization</s0>
<s5>02</s5>
</fC03>
<fC03 i1="02" i2="X" l="FRE"><s0>Broyeur boulet</s0>
<s5>03</s5>
</fC03>
<fC03 i1="02" i2="X" l="ENG"><s0>Ball mill</s0>
<s5>03</s5>
</fC03>
<fC03 i1="02" i2="X" l="SPA"><s0>Molino bolas</s0>
<s5>03</s5>
</fC03>
<fC03 i1="03" i2="3" l="FRE"><s0>Diffraction RX</s0>
<s5>04</s5>
</fC03>
<fC03 i1="03" i2="3" l="ENG"><s0>XRD</s0>
<s5>04</s5>
</fC03>
<fC03 i1="04" i2="3" l="FRE"><s0>Calorimétrie différentielle balayage</s0>
<s5>05</s5>
</fC03>
<fC03 i1="04" i2="3" l="ENG"><s0>Differential scanning calorimetry</s0>
<s5>05</s5>
</fC03>
<fC03 i1="05" i2="X" l="FRE"><s0>Aimantation saturation</s0>
<s5>06</s5>
</fC03>
<fC03 i1="05" i2="X" l="ENG"><s0>Saturation magnetization</s0>
<s5>06</s5>
</fC03>
<fC03 i1="05" i2="X" l="SPA"><s0>Imanación saturación</s0>
<s5>06</s5>
</fC03>
<fC03 i1="06" i2="3" l="FRE"><s0>Microstructure</s0>
<s5>07</s5>
</fC03>
<fC03 i1="06" i2="3" l="ENG"><s0>Microstructure</s0>
<s5>07</s5>
</fC03>
<fC03 i1="07" i2="3" l="FRE"><s0>Grosseur grain</s0>
<s5>08</s5>
</fC03>
<fC03 i1="07" i2="3" l="ENG"><s0>Grain size</s0>
<s5>08</s5>
</fC03>
<fC03 i1="08" i2="3" l="FRE"><s0>Transformation phase</s0>
<s5>09</s5>
</fC03>
<fC03 i1="08" i2="3" l="ENG"><s0>Phase transformations</s0>
<s5>09</s5>
</fC03>
<fC03 i1="09" i2="3" l="FRE"><s0>Métallurgie poudre</s0>
<s5>10</s5>
</fC03>
<fC03 i1="09" i2="3" l="ENG"><s0>Powder metallurgy</s0>
<s5>10</s5>
</fC03>
<fC03 i1="10" i2="3" l="FRE"><s0>Transformation ordre désordre</s0>
<s5>11</s5>
</fC03>
<fC03 i1="10" i2="3" l="ENG"><s0>Order-disorder transformations</s0>
<s5>11</s5>
</fC03>
<fC03 i1="11" i2="3" l="FRE"><s0>Traitement thermique</s0>
<s5>12</s5>
</fC03>
<fC03 i1="11" i2="3" l="ENG"><s0>Heat treatments</s0>
<s5>12</s5>
</fC03>
<fC03 i1="12" i2="3" l="FRE"><s0>Paramètre cristallin</s0>
<s5>13</s5>
</fC03>
<fC03 i1="12" i2="3" l="ENG"><s0>Lattice parameters</s0>
<s5>13</s5>
</fC03>
<fC03 i1="13" i2="3" l="FRE"><s0>Point Curie</s0>
<s5>14</s5>
</fC03>
<fC03 i1="13" i2="3" l="ENG"><s0>Curie point</s0>
<s5>14</s5>
</fC03>
<fC03 i1="14" i2="3" l="FRE"><s0>Nanoparticule</s0>
<s5>15</s5>
</fC03>
<fC03 i1="14" i2="3" l="ENG"><s0>Nanoparticles</s0>
<s5>15</s5>
</fC03>
<fC03 i1="15" i2="3" l="FRE"><s0>Fer alliage</s0>
<s5>16</s5>
</fC03>
<fC03 i1="15" i2="3" l="ENG"><s0>Iron alloys</s0>
<s5>16</s5>
</fC03>
<fC03 i1="16" i2="3" l="FRE"><s0>Cobalt alliage</s0>
<s5>17</s5>
</fC03>
<fC03 i1="16" i2="3" l="ENG"><s0>Cobalt alloys</s0>
<s5>17</s5>
</fC03>
<fC03 i1="17" i2="3" l="FRE"><s0>Fer</s0>
<s2>NC</s2>
<s5>20</s5>
</fC03>
<fC03 i1="17" i2="3" l="ENG"><s0>Iron</s0>
<s2>NC</s2>
<s5>20</s5>
</fC03>
<fC03 i1="18" i2="X" l="FRE"><s0>Nanocristal</s0>
<s5>21</s5>
</fC03>
<fC03 i1="18" i2="X" l="ENG"><s0>Nanocrystal</s0>
<s5>21</s5>
</fC03>
<fC03 i1="18" i2="X" l="SPA"><s0>Nanocristal</s0>
<s5>21</s5>
</fC03>
<fC03 i1="19" i2="3" l="FRE"><s0>Métal transition alliage</s0>
<s5>48</s5>
</fC03>
<fC03 i1="19" i2="3" l="ENG"><s0>Transition element alloys</s0>
<s5>48</s5>
</fC03>
<fC03 i1="20" i2="3" l="FRE"><s0>Métal transition</s0>
<s5>49</s5>
</fC03>
<fC03 i1="20" i2="3" l="ENG"><s0>Transition elements</s0>
<s5>49</s5>
</fC03>
<fC03 i1="21" i2="3" l="FRE"><s0>7575</s0>
<s4>INC</s4>
<s5>60</s5>
</fC03>
<fN21><s1>247</s1>
</fN21>
</pA>
</standard>
</inist>
</record>

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Magnetic properties of nanostructured ball-milled Fe and Fe50Co50 alloy

Magnetic properties of nanostructured ball-milled Fe and Fe50Co50 alloy

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