Serveur d'exploration sur le cobalt au Maghreb

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Spark Plasma Sintering of Co80Ni20 nanopowders synthesized by polyol process and their magnetic and mechanical properties

Identifieur interne : 000295 ( PascalFrancis/Curation ); précédent : 000294; suivant : 000296

Spark Plasma Sintering of Co80Ni20 nanopowders synthesized by polyol process and their magnetic and mechanical properties

Auteurs : Nassima Ouar [France] ; MOHAMED ALI BOUSNINA [France, Tunisie] ; Frédéric Schoenstein [France] ; Silvana Mercone [France] ; Ovidiu Brinza [France] ; Samir Farhat [France] ; Noureddine Jouini [France]

Source :

RBID : Pascal:15-0029209

Descripteurs français

English descriptors

Abstract

A bottom-up process to elaborate nanostructured cobalt materials is here described. We first, synthesized Co80Ni20 nanowires with a mean length L ˜ 270 nm and a mean diameter d ˜ 7 nm and Co80Ni20 nanospheres with a mean diameter D ˜ 200 nm. This was done by a polyol process in presence of Ruthenium (III) chloride hydrate nucleating agent. Then the as-obtained nanopowders were consolidated by spark plasma sintering (SPS) in order to limit the grain size growth. Nanostructures of powders and of the processed bulk samples were studied and characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), energy dispersive X-ray (EDX) and field emission gun scanning electron microscope (FEGSEM). Standard VSM measurements were processed for magnetic characterizations. Magnetic static measurements were performed at 10 K and 300 K showing that magnetic properties of nanostructured cobalt bulk systems can be tuned from hard to soft just changing the shape of nano-systems used for compaction and/or the sintering conditions. Also the mechanical properties show a strong dependence on the relative bulk densities and on the characteristics of grain inside the consolidated samples. Preliminary results show that nanostructured cobalt obtained from nanowires compaction present higher Vickers Hardness value.
pA  
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A03   1    @0 J. alloys compd.
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A06       @3 SUP1
A08 01  1  ENG  @1 Spark Plasma Sintering of Co80Ni20 nanopowders synthesized by polyol process and their magnetic and mechanical properties
A09 01  1  ENG  @1 SI: ISMANAM 2013
A11 01  1    @1 OUAR (Nassima)
A11 02  1    @1 MOHAMED ALI BOUSNINA
A11 03  1    @1 SCHOENSTEIN (Frédéric)
A11 04  1    @1 MERCONE (Silvana)
A11 05  1    @1 BRINZA (Ovidiu)
A11 06  1    @1 FARHAT (Samir)
A11 07  1    @1 JOUINI (Noureddine)
A12 01  1    @1 BATTEZZATI (Livio) @9 ed.
A12 02  1    @1 TIBERTO (Paola) @9 ed.
A14 01      @1 Laboratoire des Sciences des Procédés et Matériaux, LSPM, CNRS, UPR 3407, Université Paris XIII, 99 Avenue J.B. Clément @2 93430 Villetaneuse @3 FRA @Z 1 aut. @Z 2 aut. @Z 3 aut. @Z 4 aut. @Z 5 aut. @Z 6 aut. @Z 7 aut.
A14 02      @1 Unité de Recherche 99/UR12-30, Faculté des Sciences de Bizerte, Université de Carthage @2 7021 Jarzouna @3 TUN @Z 2 aut.
A20       @2 S269-S275
A21       @1 2014
A23 01      @0 ENG
A43 01      @1 INIST @2 1151 @5 354000502646710560
A44       @0 0000 @1 © 2015 INIST-CNRS. All rights reserved.
A45       @0 36 ref.
A47 01  1    @0 15-0029209
A60       @1 P @2 C
A61       @0 A
A64 01  1    @0 Journal of alloys and compounds
A66 01      @0 GBR
C01 01    ENG  @0 A bottom-up process to elaborate nanostructured cobalt materials is here described. We first, synthesized Co80Ni20 nanowires with a mean length L ˜ 270 nm and a mean diameter d ˜ 7 nm and Co80Ni20 nanospheres with a mean diameter D ˜ 200 nm. This was done by a polyol process in presence of Ruthenium (III) chloride hydrate nucleating agent. Then the as-obtained nanopowders were consolidated by spark plasma sintering (SPS) in order to limit the grain size growth. Nanostructures of powders and of the processed bulk samples were studied and characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), energy dispersive X-ray (EDX) and field emission gun scanning electron microscope (FEGSEM). Standard VSM measurements were processed for magnetic characterizations. Magnetic static measurements were performed at 10 K and 300 K showing that magnetic properties of nanostructured cobalt bulk systems can be tuned from hard to soft just changing the shape of nano-systems used for compaction and/or the sintering conditions. Also the mechanical properties show a strong dependence on the relative bulk densities and on the characteristics of grain inside the consolidated samples. Preliminary results show that nanostructured cobalt obtained from nanowires compaction present higher Vickers Hardness value.
C02 01  3    @0 001B80A16
C02 02  X    @0 001D11C03B
C02 03  3    @0 001B60B25
C02 04  3    @0 001B70E75
C02 05  X    @0 240
C03 01  3  FRE  @0 Frittage par décharge plasma @5 02
C03 01  3  ENG  @0 Spark plasma sintering @5 02
C03 02  X  FRE  @0 Synthèse nanomatériau @5 03
C03 02  X  ENG  @0 Nanomaterial synthesis @5 03
C03 02  X  SPA  @0 Síntesis nanomaterial @5 03
C03 03  3  FRE  @0 Microstructure @5 04
C03 03  3  ENG  @0 Microstructure @5 04
C03 04  3  FRE  @0 Croissance grain @5 05
C03 04  3  ENG  @0 Grain growth @5 05
C03 05  3  FRE  @0 Grosseur grain @5 06
C03 05  3  ENG  @0 Grain size @5 06
C03 06  X  FRE  @0 Spectrométrie dispersive @5 07
C03 06  X  ENG  @0 Dispersive spectrometry @5 07
C03 06  X  SPA  @0 Espectrometría dispersiva @5 07
C03 07  3  FRE  @0 Dureté Vickers @5 08
C03 07  3  ENG  @0 Vickers hardness @5 08
C03 08  3  FRE  @0 Essai compression @5 09
C03 08  3  ENG  @0 Compressive testing @5 09
C03 09  3  FRE  @0 Hystérésis magnétique @5 10
C03 09  3  ENG  @0 Magnetic hysteresis @5 10
C03 10  3  FRE  @0 Force coercitive @5 11
C03 10  3  ENG  @0 Coercive force @5 11
C03 11  X  FRE  @0 Nanopoudre @5 15
C03 11  X  ENG  @0 Nanopowder @5 15
C03 11  X  SPA  @0 Nanopolvo @5 15
C03 12  3  FRE  @0 Alliage base cobalt @2 NK @5 16
C03 12  3  ENG  @0 Cobalt base alloys @2 NK @5 16
C03 13  3  FRE  @0 Nickel alliage @5 17
C03 13  3  ENG  @0 Nickel alloys @5 17
C03 14  3  FRE  @0 Nanofil @5 18
C03 14  3  ENG  @0 Nanowires @5 18
C03 15  3  FRE  @0 Nanoparticule @5 19
C03 15  3  ENG  @0 Nanoparticles @5 19
C03 16  3  FRE  @0 Métal transition alliage @5 48
C03 16  3  ENG  @0 Transition element alloys @5 48
N21       @1 047
pR  
A30 01  1  ENG  @1 ISMANAM-2013 International Symposium on Metastable, Amorphous and Nanostructured Materials @2 18 @3 Torino ITA @4 2013-06-30

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<title xml:lang="en" level="a">Spark Plasma Sintering of Co
<sub>80</sub>
Ni
<sub>20</sub>
nanopowders synthesized by polyol process and their magnetic and mechanical properties</title>
<author>
<name sortKey="Ouar, Nassima" sort="Ouar, Nassima" uniqKey="Ouar N" first="Nassima" last="Ouar">Nassima Ouar</name>
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<name sortKey="Mohamed Ali Bousnina" sort="Mohamed Ali Bousnina" uniqKey="Mohamed Ali Bousnina" last="Mohamed Ali Bousnina">MOHAMED ALI BOUSNINA</name>
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<country>Tunisie</country>
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<name sortKey="Schoenstein, Frederic" sort="Schoenstein, Frederic" uniqKey="Schoenstein F" first="Frédéric" last="Schoenstein">Frédéric Schoenstein</name>
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<series>
<title level="j" type="main">Journal of alloys and compounds</title>
<title level="j" type="abbreviated">J. alloys compd.</title>
<idno type="ISSN">0925-8388</idno>
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<title level="j" type="main">Journal of alloys and compounds</title>
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<term>Cobalt base alloys</term>
<term>Coercive force</term>
<term>Compressive testing</term>
<term>Dispersive spectrometry</term>
<term>Grain growth</term>
<term>Grain size</term>
<term>Magnetic hysteresis</term>
<term>Microstructure</term>
<term>Nanomaterial synthesis</term>
<term>Nanoparticles</term>
<term>Nanopowder</term>
<term>Nanowires</term>
<term>Nickel alloys</term>
<term>Spark plasma sintering</term>
<term>Transition element alloys</term>
<term>Vickers hardness</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr">
<term>Frittage par décharge plasma</term>
<term>Synthèse nanomatériau</term>
<term>Microstructure</term>
<term>Croissance grain</term>
<term>Grosseur grain</term>
<term>Spectrométrie dispersive</term>
<term>Dureté Vickers</term>
<term>Essai compression</term>
<term>Hystérésis magnétique</term>
<term>Force coercitive</term>
<term>Nanopoudre</term>
<term>Alliage base cobalt</term>
<term>Nickel alliage</term>
<term>Nanofil</term>
<term>Nanoparticule</term>
<term>Métal transition alliage</term>
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<front>
<div type="abstract" xml:lang="en">A bottom-up process to elaborate nanostructured cobalt materials is here described. We first, synthesized Co
<sub>80</sub>
Ni
<sub>20</sub>
nanowires with a mean length L ˜ 270 nm and a mean diameter d ˜ 7 nm and Co
<sub>80</sub>
Ni
<sub>20</sub>
nanospheres with a mean diameter D ˜ 200 nm. This was done by a polyol process in presence of Ruthenium (III) chloride hydrate nucleating agent. Then the as-obtained nanopowders were consolidated by spark plasma sintering (SPS) in order to limit the grain size growth. Nanostructures of powders and of the processed bulk samples were studied and characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), energy dispersive X-ray (EDX) and field emission gun scanning electron microscope (FEGSEM). Standard VSM measurements were processed for magnetic characterizations. Magnetic static measurements were performed at 10 K and 300 K showing that magnetic properties of nanostructured cobalt bulk systems can be tuned from hard to soft just changing the shape of nano-systems used for compaction and/or the sintering conditions. Also the mechanical properties show a strong dependence on the relative bulk densities and on the characteristics of grain inside the consolidated samples. Preliminary results show that nanostructured cobalt obtained from nanowires compaction present higher Vickers Hardness value.</div>
</front>
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Ni
<sub>20</sub>
nanopowders synthesized by polyol process and their magnetic and mechanical properties</s1>
</fA08>
<fA09 i1="01" i2="1" l="ENG">
<s1>SI: ISMANAM 2013</s1>
</fA09>
<fA11 i1="01" i2="1">
<s1>OUAR (Nassima)</s1>
</fA11>
<fA11 i1="02" i2="1">
<s1>MOHAMED ALI BOUSNINA</s1>
</fA11>
<fA11 i1="03" i2="1">
<s1>SCHOENSTEIN (Frédéric)</s1>
</fA11>
<fA11 i1="04" i2="1">
<s1>MERCONE (Silvana)</s1>
</fA11>
<fA11 i1="05" i2="1">
<s1>BRINZA (Ovidiu)</s1>
</fA11>
<fA11 i1="06" i2="1">
<s1>FARHAT (Samir)</s1>
</fA11>
<fA11 i1="07" i2="1">
<s1>JOUINI (Noureddine)</s1>
</fA11>
<fA12 i1="01" i2="1">
<s1>BATTEZZATI (Livio)</s1>
<s9>ed.</s9>
</fA12>
<fA12 i1="02" i2="1">
<s1>TIBERTO (Paola)</s1>
<s9>ed.</s9>
</fA12>
<fA14 i1="01">
<s1>Laboratoire des Sciences des Procédés et Matériaux, LSPM, CNRS, UPR 3407, Université Paris XIII, 99 Avenue J.B. Clément</s1>
<s2>93430 Villetaneuse</s2>
<s3>FRA</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
<sZ>5 aut.</sZ>
<sZ>6 aut.</sZ>
<sZ>7 aut.</sZ>
</fA14>
<fA14 i1="02">
<s1>Unité de Recherche 99/UR12-30, Faculté des Sciences de Bizerte, Université de Carthage</s1>
<s2>7021 Jarzouna</s2>
<s3>TUN</s3>
<sZ>2 aut.</sZ>
</fA14>
<fA20>
<s2>S269-S275</s2>
</fA20>
<fA21>
<s1>2014</s1>
</fA21>
<fA23 i1="01">
<s0>ENG</s0>
</fA23>
<fA43 i1="01">
<s1>INIST</s1>
<s2>1151</s2>
<s5>354000502646710560</s5>
</fA43>
<fA44>
<s0>0000</s0>
<s1>© 2015 INIST-CNRS. All rights reserved.</s1>
</fA44>
<fA45>
<s0>36 ref.</s0>
</fA45>
<fA47 i1="01" i2="1">
<s0>15-0029209</s0>
</fA47>
<fA60>
<s1>P</s1>
<s2>C</s2>
</fA60>
<fA61>
<s0>A</s0>
</fA61>
<fA64 i1="01" i2="1">
<s0>Journal of alloys and compounds</s0>
</fA64>
<fA66 i1="01">
<s0>GBR</s0>
</fA66>
<fC01 i1="01" l="ENG">
<s0>A bottom-up process to elaborate nanostructured cobalt materials is here described. We first, synthesized Co
<sub>80</sub>
Ni
<sub>20</sub>
nanowires with a mean length L ˜ 270 nm and a mean diameter d ˜ 7 nm and Co
<sub>80</sub>
Ni
<sub>20</sub>
nanospheres with a mean diameter D ˜ 200 nm. This was done by a polyol process in presence of Ruthenium (III) chloride hydrate nucleating agent. Then the as-obtained nanopowders were consolidated by spark plasma sintering (SPS) in order to limit the grain size growth. Nanostructures of powders and of the processed bulk samples were studied and characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), energy dispersive X-ray (EDX) and field emission gun scanning electron microscope (FEGSEM). Standard VSM measurements were processed for magnetic characterizations. Magnetic static measurements were performed at 10 K and 300 K showing that magnetic properties of nanostructured cobalt bulk systems can be tuned from hard to soft just changing the shape of nano-systems used for compaction and/or the sintering conditions. Also the mechanical properties show a strong dependence on the relative bulk densities and on the characteristics of grain inside the consolidated samples. Preliminary results show that nanostructured cobalt obtained from nanowires compaction present higher Vickers Hardness value.</s0>
</fC01>
<fC02 i1="01" i2="3">
<s0>001B80A16</s0>
</fC02>
<fC02 i1="02" i2="X">
<s0>001D11C03B</s0>
</fC02>
<fC02 i1="03" i2="3">
<s0>001B60B25</s0>
</fC02>
<fC02 i1="04" i2="3">
<s0>001B70E75</s0>
</fC02>
<fC02 i1="05" i2="X">
<s0>240</s0>
</fC02>
<fC03 i1="01" i2="3" l="FRE">
<s0>Frittage par décharge plasma</s0>
<s5>02</s5>
</fC03>
<fC03 i1="01" i2="3" l="ENG">
<s0>Spark plasma sintering</s0>
<s5>02</s5>
</fC03>
<fC03 i1="02" i2="X" l="FRE">
<s0>Synthèse nanomatériau</s0>
<s5>03</s5>
</fC03>
<fC03 i1="02" i2="X" l="ENG">
<s0>Nanomaterial synthesis</s0>
<s5>03</s5>
</fC03>
<fC03 i1="02" i2="X" l="SPA">
<s0>Síntesis nanomaterial</s0>
<s5>03</s5>
</fC03>
<fC03 i1="03" i2="3" l="FRE">
<s0>Microstructure</s0>
<s5>04</s5>
</fC03>
<fC03 i1="03" i2="3" l="ENG">
<s0>Microstructure</s0>
<s5>04</s5>
</fC03>
<fC03 i1="04" i2="3" l="FRE">
<s0>Croissance grain</s0>
<s5>05</s5>
</fC03>
<fC03 i1="04" i2="3" l="ENG">
<s0>Grain growth</s0>
<s5>05</s5>
</fC03>
<fC03 i1="05" i2="3" l="FRE">
<s0>Grosseur grain</s0>
<s5>06</s5>
</fC03>
<fC03 i1="05" i2="3" l="ENG">
<s0>Grain size</s0>
<s5>06</s5>
</fC03>
<fC03 i1="06" i2="X" l="FRE">
<s0>Spectrométrie dispersive</s0>
<s5>07</s5>
</fC03>
<fC03 i1="06" i2="X" l="ENG">
<s0>Dispersive spectrometry</s0>
<s5>07</s5>
</fC03>
<fC03 i1="06" i2="X" l="SPA">
<s0>Espectrometría dispersiva</s0>
<s5>07</s5>
</fC03>
<fC03 i1="07" i2="3" l="FRE">
<s0>Dureté Vickers</s0>
<s5>08</s5>
</fC03>
<fC03 i1="07" i2="3" l="ENG">
<s0>Vickers hardness</s0>
<s5>08</s5>
</fC03>
<fC03 i1="08" i2="3" l="FRE">
<s0>Essai compression</s0>
<s5>09</s5>
</fC03>
<fC03 i1="08" i2="3" l="ENG">
<s0>Compressive testing</s0>
<s5>09</s5>
</fC03>
<fC03 i1="09" i2="3" l="FRE">
<s0>Hystérésis magnétique</s0>
<s5>10</s5>
</fC03>
<fC03 i1="09" i2="3" l="ENG">
<s0>Magnetic hysteresis</s0>
<s5>10</s5>
</fC03>
<fC03 i1="10" i2="3" l="FRE">
<s0>Force coercitive</s0>
<s5>11</s5>
</fC03>
<fC03 i1="10" i2="3" l="ENG">
<s0>Coercive force</s0>
<s5>11</s5>
</fC03>
<fC03 i1="11" i2="X" l="FRE">
<s0>Nanopoudre</s0>
<s5>15</s5>
</fC03>
<fC03 i1="11" i2="X" l="ENG">
<s0>Nanopowder</s0>
<s5>15</s5>
</fC03>
<fC03 i1="11" i2="X" l="SPA">
<s0>Nanopolvo</s0>
<s5>15</s5>
</fC03>
<fC03 i1="12" i2="3" l="FRE">
<s0>Alliage base cobalt</s0>
<s2>NK</s2>
<s5>16</s5>
</fC03>
<fC03 i1="12" i2="3" l="ENG">
<s0>Cobalt base alloys</s0>
<s2>NK</s2>
<s5>16</s5>
</fC03>
<fC03 i1="13" i2="3" l="FRE">
<s0>Nickel alliage</s0>
<s5>17</s5>
</fC03>
<fC03 i1="13" i2="3" l="ENG">
<s0>Nickel alloys</s0>
<s5>17</s5>
</fC03>
<fC03 i1="14" i2="3" l="FRE">
<s0>Nanofil</s0>
<s5>18</s5>
</fC03>
<fC03 i1="14" i2="3" l="ENG">
<s0>Nanowires</s0>
<s5>18</s5>
</fC03>
<fC03 i1="15" i2="3" l="FRE">
<s0>Nanoparticule</s0>
<s5>19</s5>
</fC03>
<fC03 i1="15" i2="3" l="ENG">
<s0>Nanoparticles</s0>
<s5>19</s5>
</fC03>
<fC03 i1="16" i2="3" l="FRE">
<s0>Métal transition alliage</s0>
<s5>48</s5>
</fC03>
<fC03 i1="16" i2="3" l="ENG">
<s0>Transition element alloys</s0>
<s5>48</s5>
</fC03>
<fN21>
<s1>047</s1>
</fN21>
</pA>
<pR>
<fA30 i1="01" i2="1" l="ENG">
<s1>ISMANAM-2013 International Symposium on Metastable, Amorphous and Nanostructured Materials</s1>
<s2>18</s2>
<s3>Torino ITA</s3>
<s4>2013-06-30</s4>
</fA30>
</pR>
</standard>
</inist>
</record>

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