NickelMaghrebV1, Main, Exploration, bibRecord, 000273

New composites of ZnO-P2O5/Ni having PTC transition and high Seebeck coefficient

Identifieur interne : 000273 ( Main/Exploration ); précédent : 000272; suivant : 000274

New composites of ZnO-P2O5/Ni having PTC transition and high Seebeck coefficient

Auteurs : A. Maaroufi [Maroc] ; O. Oabi [Maroc] ; B. Lucas [France] ; A. El Amrani [Maroc] ; S. Degot [France]

Source :

Journal of non-crystalline solids [ 0022-3093 ] ; 2012.

RBID : Pascal:13-0090410

Descripteurs français

Pascal (Inist)
- Effet Seebeck, Conductivité électrique, Nickel, Fraction volumique, Transition phase, Percolation, Porteur charge, Dépendance température, Coefficient température, Expansion volume, Energie activation, Haute température, Conduction saut, Propriété électrique, Matériau composite, Verre, ZnO, P2O5, 7280N, 8105K, 7220E.
Wicri :
- topic : Nickel, Matériau composite, Verre.

English descriptors

KwdEn :
- Activation energy, Charge carriers, Composite materials, Electrical conductivity, Electrical properties, Glass, High temperature, Hopping conduction, Nickel, Percolation, Phase transitions, Seebeck effect, Temperature coefficient, Temperature dependence, Volume expansion, Volume fraction.

Abstract

In this article, we report the electrical conductivity (σ) and Seebeck coefficient (S) of ZnO-P₂O₅ matrix filled with conductive powder of nickel (Ni). The variation of σ versus volume fraction of Ni showed a non-conducting to conducting phase transition at percolation threshold (28 vol. %). The change of S from high positive to negative values exhibits that this transition is accompanied by the passing of carrier charge from p to n type. On the other hand, the measurements of σ and S as function of temperature, above the percolation threshold, showed a positive temperature coefficient (PTC) phase transition at T_c≥400 K, linked with a high S = -5000 μV/K, giving highest power factor PF=σ.S^2≃2.10^-4 Wm^-1 K^-2. The temperature dependence of the volume expansion enabled to confirm that this transition is associated to the thermal volume variation in matrix. However, the temperature dependence of σ below the percolation threshold showed two different mechanisms: thermally activated hopping behavior at high temperatures and Mott's variable range hopping (VRH) at low temperatures.

Affiliations:

Links toward previous steps (curation, corpus...)

to stream PascalFrancis, to step Corpus: 000069
to stream PascalFrancis, to step Curation: 000372
to stream PascalFrancis, to step Checkpoint: 000082
to stream Main, to step Merge: 000279
to stream Main, to step Curation: 000273

Le document en format XML

<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">New composites of ZnO-P<sub>2</sub>
O<sub>5</sub>
/Ni having PTC transition and high Seebeck coefficient</title>
<author><name sortKey="Maaroufi, A" sort="Maaroufi, A" uniqKey="Maaroufi A" first="A." last="Maaroufi">A. Maaroufi</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>University Mohammed VAgdal, Laboratory of Composite Materials, Polymers and Environment, Department of Chemistry, Faculty of Sciences P.B. 1014</s1>
<s2>Rabat-Agdal</s2>
<s3>MAR</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
</inist:fA14>
<country>Maroc</country>
<wicri:noRegion>Rabat-Agdal</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Oabi, O" sort="Oabi, O" uniqKey="Oabi O" first="O." last="Oabi">O. Oabi</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>University Mohammed VAgdal, Laboratory of Composite Materials, Polymers and Environment, Department of Chemistry, Faculty of Sciences P.B. 1014</s1>
<s2>Rabat-Agdal</s2>
<s3>MAR</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
</inist:fA14>
<country>Maroc</country>
<wicri:noRegion>Rabat-Agdal</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Lucas, B" sort="Lucas, B" uniqKey="Lucas B" first="B." last="Lucas">B. Lucas</name>
<affiliation wicri:level="3"><inist:fA14 i1="02"><s1>XLIM UMR 6172-Université de Limoges/CNRS 123 avenue Albert Thomas-</s1>
<s2>87060 Limoges</s2>
<s3>FRA</s3>
<sZ>3 aut.</sZ>
</inist:fA14>
<country>France</country>
<placeName><region type="region" nuts="2">Nouvelle-Aquitaine</region>
<region type="old region" nuts="2">Limousin</region>
<settlement type="city">Limoges</settlement>
</placeName>
</affiliation>
</author>
<author><name sortKey="El Amrani, A" sort="El Amrani, A" uniqKey="El Amrani A" first="A." last="El Amrani">A. El Amrani</name>
<affiliation wicri:level="1"><inist:fA14 i1="03"><s1>LPSMS, FST Errachidia, University Moulay Ismail Meknès, B. P. 509, Boutalamine</s1>
<s2>, Errachidia</s2>
<s3>MAR</s3>
<sZ>4 aut.</sZ>
</inist:fA14>
<country>Maroc</country>
<wicri:noRegion>, Errachidia</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Degot, S" sort="Degot, S" uniqKey="Degot S" first="S." last="Degot">S. Degot</name>
<affiliation wicri:level="3"><inist:fA14 i1="04"><s1>SPCTS, CNRS UMR 6638, European Ceramic Center, 12, rue Atlantis</s1>
<s2>87068 Limoges</s2>
<s3>FRA</s3>
<sZ>5 aut.</sZ>
</inist:fA14>
<country>France</country>
<placeName><region type="region" nuts="2">Nouvelle-Aquitaine</region>
<region type="old region" nuts="2">Limousin</region>
<settlement type="city">Limoges</settlement>
</placeName>
</affiliation>
</author>
</titleStmt>
<publicationStmt><idno type="wicri:source">INIST</idno>
<idno type="inist">13-0090410</idno>
<date when="2012">2012</date>
<idno type="stanalyst">PASCAL 13-0090410 INIST</idno>
<idno type="RBID">Pascal:13-0090410</idno>
<idno type="wicri:Area/PascalFrancis/Corpus">000069</idno>
<idno type="wicri:Area/PascalFrancis/Curation">000372</idno>
<idno type="wicri:Area/PascalFrancis/Checkpoint">000082</idno>
<idno type="wicri:explorRef" wicri:stream="PascalFrancis" wicri:step="Checkpoint">000082</idno>
<idno type="wicri:doubleKey">0022-3093:2012:Maaroufi A:new:composites:of</idno>
<idno type="wicri:Area/Main/Merge">000279</idno>
<idno type="wicri:Area/Main/Curation">000273</idno>
<idno type="wicri:Area/Main/Exploration">000273</idno>
</publicationStmt>
<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">New composites of ZnO-P<sub>2</sub>
O<sub>5</sub>
/Ni having PTC transition and high Seebeck coefficient</title>
<author><name sortKey="Maaroufi, A" sort="Maaroufi, A" uniqKey="Maaroufi A" first="A." last="Maaroufi">A. Maaroufi</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>University Mohammed VAgdal, Laboratory of Composite Materials, Polymers and Environment, Department of Chemistry, Faculty of Sciences P.B. 1014</s1>
<s2>Rabat-Agdal</s2>
<s3>MAR</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
</inist:fA14>
<country>Maroc</country>
<wicri:noRegion>Rabat-Agdal</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Oabi, O" sort="Oabi, O" uniqKey="Oabi O" first="O." last="Oabi">O. Oabi</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>University Mohammed VAgdal, Laboratory of Composite Materials, Polymers and Environment, Department of Chemistry, Faculty of Sciences P.B. 1014</s1>
<s2>Rabat-Agdal</s2>
<s3>MAR</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
</inist:fA14>
<country>Maroc</country>
<wicri:noRegion>Rabat-Agdal</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Lucas, B" sort="Lucas, B" uniqKey="Lucas B" first="B." last="Lucas">B. Lucas</name>
<affiliation wicri:level="3"><inist:fA14 i1="02"><s1>XLIM UMR 6172-Université de Limoges/CNRS 123 avenue Albert Thomas-</s1>
<s2>87060 Limoges</s2>
<s3>FRA</s3>
<sZ>3 aut.</sZ>
</inist:fA14>
<country>France</country>
<placeName><region type="region" nuts="2">Nouvelle-Aquitaine</region>
<region type="old region" nuts="2">Limousin</region>
<settlement type="city">Limoges</settlement>
</placeName>
</affiliation>
</author>
<author><name sortKey="El Amrani, A" sort="El Amrani, A" uniqKey="El Amrani A" first="A." last="El Amrani">A. El Amrani</name>
<affiliation wicri:level="1"><inist:fA14 i1="03"><s1>LPSMS, FST Errachidia, University Moulay Ismail Meknès, B. P. 509, Boutalamine</s1>
<s2>, Errachidia</s2>
<s3>MAR</s3>
<sZ>4 aut.</sZ>
</inist:fA14>
<country>Maroc</country>
<wicri:noRegion>, Errachidia</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Degot, S" sort="Degot, S" uniqKey="Degot S" first="S." last="Degot">S. Degot</name>
<affiliation wicri:level="3"><inist:fA14 i1="04"><s1>SPCTS, CNRS UMR 6638, European Ceramic Center, 12, rue Atlantis</s1>
<s2>87068 Limoges</s2>
<s3>FRA</s3>
<sZ>5 aut.</sZ>
</inist:fA14>
<country>France</country>
<placeName><region type="region" nuts="2">Nouvelle-Aquitaine</region>
<region type="old region" nuts="2">Limousin</region>
<settlement type="city">Limoges</settlement>
</placeName>
</affiliation>
</author>
</analytic>
<series><title level="j" type="main">Journal of non-crystalline solids</title>
<title level="j" type="abbreviated">J. non-cryst. solids</title>
<idno type="ISSN">0022-3093</idno>
<imprint><date when="2012">2012</date>
</imprint>
</series>
</biblStruct>
</sourceDesc>
<seriesStmt><title level="j" type="main">Journal of non-crystalline solids</title>
<title level="j" type="abbreviated">J. non-cryst. solids</title>
<idno type="ISSN">0022-3093</idno>
</seriesStmt>
</fileDesc>
<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Activation energy</term>
<term>Charge carriers</term>
<term>Composite materials</term>
<term>Electrical conductivity</term>
<term>Electrical properties</term>
<term>Glass</term>
<term>High temperature</term>
<term>Hopping conduction</term>
<term>Nickel</term>
<term>Percolation</term>
<term>Phase transitions</term>
<term>Seebeck effect</term>
<term>Temperature coefficient</term>
<term>Temperature dependence</term>
<term>Volume expansion</term>
<term>Volume fraction</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Effet Seebeck</term>
<term>Conductivité électrique</term>
<term>Nickel</term>
<term>Fraction volumique</term>
<term>Transition phase</term>
<term>Percolation</term>
<term>Porteur charge</term>
<term>Dépendance température</term>
<term>Coefficient température</term>
<term>Expansion volume</term>
<term>Energie activation</term>
<term>Haute température</term>
<term>Conduction saut</term>
<term>Propriété électrique</term>
<term>Matériau composite</term>
<term>Verre</term>
<term>ZnO</term>
<term>P2O5</term>
<term>7280N</term>
<term>8105K</term>
<term>7220E</term>
</keywords>
<keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Nickel</term>
<term>Matériau composite</term>
<term>Verre</term>
</keywords>
</textClass>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en">In this article, we report the electrical conductivity (σ) and Seebeck coefficient (S) of ZnO-P<sub>2</sub>
O<sub>5</sub>
 matrix filled with conductive powder of nickel (Ni). The variation of σ versus volume fraction of Ni showed a non-conducting to conducting phase transition at percolation threshold (28 vol. %). The change of S from high positive to negative values exhibits that this transition is accompanied by the passing of carrier charge from p to n type. On the other hand, the measurements of σ and S as function of temperature, above the percolation threshold, showed a positive temperature coefficient (PTC) phase transition at T<sub>c</sub>
≥400 K, linked with a high S = -5000 μV/K, giving highest power factor PF=σ.S<sup>2≃</sup>
2.10<sup>-4</sup>
 Wm<sup>-1</sup>
 K<sup>-2</sup>
. The temperature dependence of the volume expansion enabled to confirm that this transition is associated to the thermal volume variation in matrix. However, the temperature dependence of σ below the percolation threshold showed two different mechanisms: thermally activated hopping behavior at high temperatures and Mott's variable range hopping (VRH) at low temperatures.</div>
</front>
</TEI>
<affiliations><list><country><li>France</li>
<li>Maroc</li>
</country>
<region><li>Limousin</li>
<li>Nouvelle-Aquitaine</li>
</region>
<settlement><li>Limoges</li>
</settlement>
</list>
<tree><country name="Maroc"><noRegion><name sortKey="Maaroufi, A" sort="Maaroufi, A" uniqKey="Maaroufi A" first="A." last="Maaroufi">A. Maaroufi</name>
</noRegion>
<name sortKey="El Amrani, A" sort="El Amrani, A" uniqKey="El Amrani A" first="A." last="El Amrani">A. El Amrani</name>
<name sortKey="Oabi, O" sort="Oabi, O" uniqKey="Oabi O" first="O." last="Oabi">O. Oabi</name>
</country>
<country name="France"><region name="Nouvelle-Aquitaine"><name sortKey="Lucas, B" sort="Lucas, B" uniqKey="Lucas B" first="B." last="Lucas">B. Lucas</name>
</region>
<name sortKey="Degot, S" sort="Degot, S" uniqKey="Degot S" first="S." last="Degot">S. Degot</name>
</country>
</tree>
</affiliations>
</record>

Pour manipuler ce document sous Unix (Dilib)

EXPLOR_STEP=$WICRI_ROOT/Wicri/Terre/explor/NickelMaghrebV1/Data/Main/Exploration

HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 000273 | SxmlIndent | more

HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 000273 | SxmlIndent | more

Pour mettre un lien sur cette page dans le réseau Wicri

{{Explor lien
   |wiki=    Wicri/Terre
   |area=    NickelMaghrebV1
   |flux=    Main
   |étape=   Exploration
   |type=    RBID
   |clé=     Pascal:13-0090410
   |texte=   New composites of ZnO-P2O5/Ni having PTC transition and high Seebeck coefficient
}}

This area was generated with Dilib version V0.6.27.
Data generation: Fri Mar 24 23:14:20 2017. Site generation: Tue Mar 5 17:03:47 2024

	Serveur d'exploration sur le nickel au Maghreb
	Attention, ce site est en cours de développement ! Attention, site généré par des moyens informatiques à partir de corpus bruts. Les informations ne sont donc pas validées.

Serveur d'exploration sur le nickel au Maghreb

New composites of ZnO-P2O5/Ni having PTC transition and high Seebeck coefficient

New composites of ZnO-P2O5/Ni having PTC transition and high Seebeck coefficient

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri