Preparation and characterization of the spinel series Co6+xNi4-xMn8O24 (0≤x≤4)
Identifieur interne : 000454 ( PascalFrancis/Checkpoint ); précédent : 000453; suivant : 000455Preparation and characterization of the spinel series Co6+xNi4-xMn8O24 (0≤x≤4)
Auteurs : C. Boudaya [Tunisie] ; L. Laroussi [Tunisie] ; E. Dhahri [Tunisie] ; J. C. Joubert [France] ; A. Cheikh-Rouhou [Tunisie]Source :
- Phase transitions : (Print) [ 0141-1594 ] ; 1999.
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Abstract
Samples of the spinel series, Co6+xNi4-xMn8O24 (0≤x≤4), prepared by traditional ceramic procedures, are characterized by X-ray diffraction, SEM techniques and magnetization measurements. In the whole concentration range, a single-phase cubic spinels are obtained at a sintering temperature of 1050°C for a period of time of 72 h. SEM analysis showed that the ceramics are well densified and consisted of well individualized grains of a narrow size distribution. Magnetization measurements revealed the existence of a Yafet-Kittel configuration at low temperature and a ferrimagnetic-paramagnetic transition with increasing temperature. The Curie temperature decreased from 250 K for x = 2.5 to 200 K for x = 4.
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">Preparation and characterization of the spinel series Co<sub>6+x</sub>Ni<sub>4-x</sub>Mn<sub>8</sub>O<sub>24</sub> (0≤x≤4)</title><author><name sortKey="Boudaya, C" sort="Boudaya, C" uniqKey="Boudaya C" first="C." last="Boudaya">C. Boudaya</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Laboratoire de Physique des matériaux, Faculté des Sciences de Sfax, BP 763</s1><s2>3038 Sfax</s2><s3>TUN</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>Tunisie</country><wicri:noRegion>3038 Sfax</wicri:noRegion></affiliation></author><author><name sortKey="Laroussi, L" sort="Laroussi, L" uniqKey="Laroussi L" first="L." last="Laroussi">L. Laroussi</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Laboratoire de Physique des matériaux, Faculté des Sciences de Sfax, BP 763</s1><s2>3038 Sfax</s2><s3>TUN</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>Tunisie</country><wicri:noRegion>3038 Sfax</wicri:noRegion></affiliation></author><author><name sortKey="Dhahri, E" sort="Dhahri, E" uniqKey="Dhahri E" first="E." last="Dhahri">E. Dhahri</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Laboratoire de Physique des matériaux, Faculté des Sciences de Sfax, BP 763</s1><s2>3038 Sfax</s2><s3>TUN</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>Tunisie</country><wicri:noRegion>3038 Sfax</wicri:noRegion></affiliation></author><author><name sortKey="Joubert, J C" sort="Joubert, J C" uniqKey="Joubert J" first="J. C." last="Joubert">J. C. Joubert</name><affiliation wicri:level="3"><inist:fA14 i1="02"><s1>Laboratoire des Matériaux et de Génie Physique, CNRS UMR 5628, ENSPG, BP 46</s1><s2>38402 Saint Martin d'Hères</s2><s3>FRA</s3><sZ>4 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Auvergne-Rhône-Alpes</region><region type="old region" nuts="2">Rhône-Alpes</region><settlement type="city">Saint Martin d'Hères</settlement></placeName></affiliation></author><author><name sortKey="Cheikh Rouhou, A" sort="Cheikh Rouhou, A" uniqKey="Cheikh Rouhou A" first="A." last="Cheikh-Rouhou">A. Cheikh-Rouhou</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Laboratoire de Physique des matériaux, Faculté des Sciences de Sfax, BP 763</s1><s2>3038 Sfax</s2><s3>TUN</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>Tunisie</country><wicri:noRegion>3038 Sfax</wicri:noRegion></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">00-0244953</idno><date when="1999">1999</date><idno type="stanalyst">PASCAL 00-0244953 INIST</idno><idno type="RBID">Pascal:00-0244953</idno><idno type="wicri:Area/PascalFrancis/Corpus">000433</idno><idno type="wicri:Area/PascalFrancis/Curation">000008</idno><idno type="wicri:Area/PascalFrancis/Checkpoint">000454</idno><idno type="wicri:explorRef" wicri:stream="PascalFrancis" wicri:step="Checkpoint">000454</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Preparation and characterization of the spinel series Co<sub>6+x</sub>Ni<sub>4-x</sub>Mn<sub>8</sub>O<sub>24</sub> (0≤x≤4)</title><author><name sortKey="Boudaya, C" sort="Boudaya, C" uniqKey="Boudaya C" first="C." last="Boudaya">C. Boudaya</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Laboratoire de Physique des matériaux, Faculté des Sciences de Sfax, BP 763</s1><s2>3038 Sfax</s2><s3>TUN</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>Tunisie</country><wicri:noRegion>3038 Sfax</wicri:noRegion></affiliation></author><author><name sortKey="Laroussi, L" sort="Laroussi, L" uniqKey="Laroussi L" first="L." last="Laroussi">L. Laroussi</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Laboratoire de Physique des matériaux, Faculté des Sciences de Sfax, BP 763</s1><s2>3038 Sfax</s2><s3>TUN</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>Tunisie</country><wicri:noRegion>3038 Sfax</wicri:noRegion></affiliation></author><author><name sortKey="Dhahri, E" sort="Dhahri, E" uniqKey="Dhahri E" first="E." last="Dhahri">E. Dhahri</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Laboratoire de Physique des matériaux, Faculté des Sciences de Sfax, BP 763</s1><s2>3038 Sfax</s2><s3>TUN</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>Tunisie</country><wicri:noRegion>3038 Sfax</wicri:noRegion></affiliation></author><author><name sortKey="Joubert, J C" sort="Joubert, J C" uniqKey="Joubert J" first="J. C." last="Joubert">J. C. Joubert</name><affiliation wicri:level="3"><inist:fA14 i1="02"><s1>Laboratoire des Matériaux et de Génie Physique, CNRS UMR 5628, ENSPG, BP 46</s1><s2>38402 Saint Martin d'Hères</s2><s3>FRA</s3><sZ>4 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region" nuts="2">Auvergne-Rhône-Alpes</region><region type="old region" nuts="2">Rhône-Alpes</region><settlement type="city">Saint Martin d'Hères</settlement></placeName></affiliation></author><author><name sortKey="Cheikh Rouhou, A" sort="Cheikh Rouhou, A" uniqKey="Cheikh Rouhou A" first="A." last="Cheikh-Rouhou">A. Cheikh-Rouhou</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Laboratoire de Physique des matériaux, Faculté des Sciences de Sfax, BP 763</s1><s2>3038 Sfax</s2><s3>TUN</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>5 aut.</sZ></inist:fA14><country>Tunisie</country><wicri:noRegion>3038 Sfax</wicri:noRegion></affiliation></author></analytic><series><title level="j" type="main">Phase transitions : (Print)</title><title level="j" type="abbreviated">Phase transit. : (Print)</title><idno type="ISSN">0141-1594</idno><imprint><date when="1999">1999</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Phase transitions : (Print)</title><title level="j" type="abbreviated">Phase transit. : (Print)</title><idno type="ISSN">0141-1594</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Cobalt oxides</term><term>Crystal structure</term><term>Curie point</term><term>Experimental study</term><term>Magnetic transitions</term><term>Magnetization</term><term>Manganese oxides</term><term>Microstructure</term><term>Nickel oxides</term><term>Preparation</term><term>Quantity ratio</term><term>Quaternary compounds</term><term>SEM</term><term>Sintering</term><term>Spinels</term><term>XRD</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Etude expérimentale</term><term>Préparation</term><term>Frittage</term><term>Microstructure</term><term>Structure cristalline</term><term>Aimantation</term><term>Point Curie</term><term>Transition magnétique</term><term>Effet concentration</term><term>Diffraction RX</term><term>SEM</term><term>Spinelles</term><term>Cobalt oxyde</term><term>Nickel oxyde</term><term>Manganèse oxyde</term><term>Composé quaternaire</term><term>Co6+xNi4-xMn8O24</term><term>Co Mn Ni O</term><term>6166F</term><term>7530K</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Samples of the spinel series, Co<sub>6+x</sub>Ni<sub>4-x</sub>Mn<sub>8</sub>O<sub>24</sub> (0≤x≤4), prepared by traditional ceramic procedures, are characterized by X-ray diffraction, SEM techniques and magnetization measurements. In the whole concentration range, a single-phase cubic spinels are obtained at a sintering temperature of 1050°C for a period of time of 72 h. SEM analysis showed that the ceramics are well densified and consisted of well individualized grains of a narrow size distribution. Magnetization measurements revealed the existence of a Yafet-Kittel configuration at low temperature and a ferrimagnetic-paramagnetic transition with increasing temperature. The Curie temperature decreased from 250 K for x = 2.5 to 200 K for x = 4.</div></front></TEI><inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>0141-1594</s0></fA01><fA02 i1="01"><s0>PHTRDP</s0></fA02><fA03 i2="1"><s0>Phase transit. : (Print)</s0></fA03><fA05><s2>68</s2></fA05><fA06><s2>4</s2><s3>SEC.A</s3></fA06><fA08 i1="01" i2="1" l="ENG"><s1>Preparation and characterization of the spinel series Co<sub>6+x</sub>Ni<sub>4-x</sub>Mn<sub>8</sub>O<sub>24</sub> (0≤x≤4)</s1></fA08><fA11 i1="01" i2="1"><s1>BOUDAYA (C.)</s1></fA11><fA11 i1="02" i2="1"><s1>LAROUSSI (L.)</s1></fA11><fA11 i1="03" i2="1"><s1>DHAHRI (E.)</s1></fA11><fA11 i1="04" i2="1"><s1>JOUBERT (J. 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Boudaya</name></noRegion><name sortKey="Cheikh Rouhou, A" sort="Cheikh Rouhou, A" uniqKey="Cheikh Rouhou A" first="A." last="Cheikh-Rouhou">A. Cheikh-Rouhou</name><name sortKey="Dhahri, E" sort="Dhahri, E" uniqKey="Dhahri E" first="E." last="Dhahri">E. Dhahri</name><name sortKey="Laroussi, L" sort="Laroussi, L" uniqKey="Laroussi L" first="L." last="Laroussi">L. Laroussi</name></country><country name="France"><region name="Auvergne-Rhône-Alpes"><name sortKey="Joubert, J C" sort="Joubert, J C" uniqKey="Joubert J" first="J. C." last="Joubert">J. C. Joubert</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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