Materials Map

Discover the materials research landscape. Find experts, partners, networks.

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The Materials Map is an open tool for improving networking and interdisciplinary exchange within materials research. It enables cross-database search for cooperation and network partners and discovering of the research landscape.

The dashboard provides detailed information about the selected scientist, e.g. publications. The dashboard can be filtered and shows the relationship to co-authors in different diagrams. In addition, a link is provided to find contact information.

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The Materials Map is still under development. In its current state, it is only based on one single data source and, thus, incomplete and contains duplicates. We are working on incorporating new open data sources like ORCID to improve the quality and the timeliness of our data. We will update Materials Map as soon as possible and kindly ask for your patience.

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Naji, M.
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Guilmeau, E.

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in Cooperation with on an Cooperation-Score of 37%

Topics

Publications (19/19 displayed)

  • 2021Effects of Grain Size on the Thermoelectric Properties of Cu2SnS3: An Experimental and First-Principles Study32citations
  • 2020Structure, microstructure and thermoelectric properties of germanite-type Cu22Fe8Ge4S32 compounds17citations
  • 2020Structure, microstructure and thermoelectric properties of germanite-type Cu22Fe8Ge4S32 compounds17citations
  • 2018Substituting Copper with Silver in the BiMOCh Layered Compounds (M = Cu or Ag; Ch = S, Se, or Te) Crystal, Electronic Structure, and Optoelectronic Properties40citations
  • 2017The crucial role of selenium for sulphur substitution in the structural transitions and thermoelectric properties of Cu5FeS4 bornite50citations
  • 2016Ba 6−3x Nd 8+2x Ti 18 O 54 Tungsten Bronze A New High-Temperature n-Type Oxide Thermoelectric17citations
  • 2016Thermoelectric properties of TiS2 mechanically alloyed compounds39citations
  • 2015Synthesis and thermoelectric properties in the 2D Ti 1 - x Nb x S 3 trichalcogenides26citations
  • 2015On the effects of substitution, intercalation, non-stoichiometry and block layer concept in TiS 2 based thermoelectrics61citations
  • 2014Electron doping and phonon scattering in Ti1+xS2 thermoelectric compounds74citations
  • 2014Thermoelectric properties of In0.2Co4Sb12 skutterudites with embedded PbTe or ZnO nanoparticles28citations
  • 2013High temperature thermoelectric properties of CoSb3 skutterudites with PbTe inclusions14citations
  • 2011Solution-based synthesis routes to thermoelectric Bi2Ca2Co1.7Ox53citations
  • 2011Preparation of Ni-doped ZnO ceramics for thermoelectric applications129citations
  • 2010Transport and magnetic properties of Mo2.5Ru0.5Sb7−xTex6citations
  • 2010High thermoelectric power factor in Fe-substituted Mo3Sb715citations
  • 2010High thermoelectric power factor in Fe-substituted Mo.sub.3./sub.Sb.sub.7./sub.15citations
  • 2005Rietveld texture analysis of alumina ceramics by neutron diffraction23citations
  • 2005Texture of alumina by neutron diffraction and SEM-EBSDcitations

Places of action

Chart of shared publication
Nautiyal, H.
1 / 1 shared
Scardi, P.
1 / 10 shared
Ataollahi, N.
1 / 8 shared
Lohani, K.
1 / 2 shared
Maji, K.
1 / 1 shared
Cordier, Stéphane
2 / 48 shared
Paradis-Fortin, L.
2 / 2 shared
Pavan Kumar, V.
2 / 2 shared
Durand, G. R.
2 / 3 shared
Merdrignac-Conanec, O.
2 / 4 shared
Prestipino, C.
1 / 4 shared
Lemoine, P.
3 / 25 shared
Lebedev, O. I.
5 / 27 shared
Guélou, G.
3 / 3 shared
Kumar, V. Pavan
1 / 2 shared
Prestipino, Carmelo
1 / 18 shared
Barboux, P.
1 / 4 shared
Maignan, A.
3 / 17 shared
Le Mercier, T.
1 / 1 shared
Labegorre, J. -B.
1 / 1 shared
Wallez, G.
1 / 4 shared
Giaume, D.
1 / 1 shared
Al Orabi, R. Al Rahal
1 / 1 shared
Haller, S.
1 / 1 shared
Gamon, J.
1 / 1 shared
Barbier, T.
3 / 3 shared
Raveau, B.
1 / 15 shared
Nassif, V.
1 / 7 shared
Baig, H.
1 / 2 shared
Freer, R.
1 / 10 shared
Parker, S. C.
1 / 2 shared
Montecucco, A.
1 / 2 shared
Azough, F.
1 / 19 shared
Paul, M.
1 / 4 shared
Yeandel, S. R.
1 / 1 shared
Ramasse, Q.
1 / 17 shared
Knox, A.
1 / 1 shared
Sellami, N.
1 / 6 shared
Min, G.
1 / 3 shared
Kepaptsoglou, D.
1 / 10 shared
Molinari, M.
1 / 8 shared
Sweet, T.
1 / 2 shared
Mallick, T.
1 / 4 shared
Siviter, J.
1 / 2 shared
Mullen, P.
1 / 1 shared
Paul, D.
1 / 6 shared
Han, G.
1 / 4 shared
Baran, J. D.
1 / 3 shared
Gregory, D.
1 / 4 shared
Man, E. A.
1 / 1 shared
Li, W.
1 / 48 shared
Kinemuchi, Y.
1 / 1 shared
Bourgès, C.
1 / 1 shared
Barrier, N.
1 / 4 shared
Powell, A. V.
2 / 2 shared
Vaqueiro, P.
2 / 2 shared
Berthebaud, David
1 / 33 shared
Misse, P. R. N.
1 / 1 shared
Wan, C.
1 / 3 shared
Koumoto, K.
1 / 1 shared
Beaumale, M.
1 / 1 shared
Guelou, G.
1 / 1 shared
Breard, Y.
1 / 2 shared
Lenoir, Bertrand
4 / 103 shared
Dauscher, Anne
2 / 67 shared
Chubilleau, Caroline
2 / 3 shared
Godart, C.
2 / 5 shared
Candolfi, Christophe
2 / 86 shared
Masschelein, Philippe
2 / 11 shared
Rasekh, Sh.
1 / 16 shared
Diez, J. C.
1 / 18 shared
Madre, M. A.
1 / 33 shared
Marinel, S.
2 / 13 shared
Sotelo, A.
1 / 32 shared
Retoux, R.
1 / 5 shared
Savary, Etienne
1 / 9 shared
Harnois, C.
1 / 2 shared
Colder, H.
1 / 4 shared
Hejtmánek, J.
2 / 28 shared
Dauscher, A.
3 / 13 shared
Candolfi, C.
3 / 10 shared
Malaman, B.
2 / 11 shared
Tobola, J.
2 / 12 shared
Hejtmanek, J.
1 / 9 shared
Lenoir, B.
1 / 5 shared
Suzuki, T. S.
2 / 3 shared
Henrist, Catherine
2 / 32 shared
Ouladdiaf, B.
2 / 7 shared
Sakka, Y.
2 / 9 shared
Chateigner, D.
2 / 15 shared
Grossin, D.
1 / 2 shared
Chart of publication period
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2020
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Co-Authors (by relevance)

  • Nautiyal, H.
  • Scardi, P.
  • Ataollahi, N.
  • Lohani, K.
  • Maji, K.
  • Cordier, Stéphane
  • Paradis-Fortin, L.
  • Pavan Kumar, V.
  • Durand, G. R.
  • Merdrignac-Conanec, O.
  • Prestipino, C.
  • Lemoine, P.
  • Lebedev, O. I.
  • Guélou, G.
  • Kumar, V. Pavan
  • Prestipino, Carmelo
  • Barboux, P.
  • Maignan, A.
  • Le Mercier, T.
  • Labegorre, J. -B.
  • Wallez, G.
  • Giaume, D.
  • Al Orabi, R. Al Rahal
  • Haller, S.
  • Gamon, J.
  • Barbier, T.
  • Raveau, B.
  • Nassif, V.
  • Baig, H.
  • Freer, R.
  • Parker, S. C.
  • Montecucco, A.
  • Azough, F.
  • Paul, M.
  • Yeandel, S. R.
  • Ramasse, Q.
  • Knox, A.
  • Sellami, N.
  • Min, G.
  • Kepaptsoglou, D.
  • Molinari, M.
  • Sweet, T.
  • Mallick, T.
  • Siviter, J.
  • Mullen, P.
  • Paul, D.
  • Han, G.
  • Baran, J. D.
  • Gregory, D.
  • Man, E. A.
  • Li, W.
  • Kinemuchi, Y.
  • Bourgès, C.
  • Barrier, N.
  • Powell, A. V.
  • Vaqueiro, P.
  • Berthebaud, David
  • Misse, P. R. N.
  • Wan, C.
  • Koumoto, K.
  • Beaumale, M.
  • Guelou, G.
  • Breard, Y.
  • Lenoir, Bertrand
  • Dauscher, Anne
  • Chubilleau, Caroline
  • Godart, C.
  • Candolfi, Christophe
  • Masschelein, Philippe
  • Rasekh, Sh.
  • Diez, J. C.
  • Madre, M. A.
  • Marinel, S.
  • Sotelo, A.
  • Retoux, R.
  • Savary, Etienne
  • Harnois, C.
  • Colder, H.
  • Hejtmánek, J.
  • Dauscher, A.
  • Candolfi, C.
  • Malaman, B.
  • Tobola, J.
  • Hejtmanek, J.
  • Lenoir, B.
  • Suzuki, T. S.
  • Henrist, Catherine
  • Ouladdiaf, B.
  • Sakka, Y.
  • Chateigner, D.
  • Grossin, D.
OrganizationsLocationPeople

article

Structure, microstructure and thermoelectric properties of germanite-type Cu22Fe8Ge4S32 compounds

  • Cordier, Stéphane
  • Kumar, V. Pavan
  • Paradis-Fortin, L.
  • Durand, G. R.
  • Guilmeau, E.
  • Merdrignac-Conanec, O.
  • Lemoine, P.
  • Prestipino, Carmelo
  • Lebedev, O. I.
  • Guélou, G.
Abstract

This paper describes the influence of the powder synthesis and densification techniques on the structure, microstructure and thermoelectric properties of Cu22Fe8Ge4S32, a synthetic derivative of the naturally occurring germanite mineral. Two powder synthesis approaches are compared, namely mechanical alloying and conventional sealed tube synthesis, combined with two densification methods spark plasma sintering and hot pressing. Structural analyses by Le Bail refinement of X-ray powder diffraction patterns and transmission electron microscopy confirmed the high crystallinity and the absence of structural defects in the samples. It is especially highlighted that mechanical alloying combined with low sintering temperature allows to reach high purity and to limit the formation of secondary phases due to sulfur volatilization in the bulk specimens. The changes in the electrical resistivity and Seebeck coefficient with the sample preparation methods evidence the high sensitivity of the material to slight stoichiometric deviations. Conversely, the thermal conductivity is less influenced by stoichiometric variations and microstructural changes. This investigation draws attention to the significant impact of powder synthesis and sintering methods on the electrical transport properties of complex quaternary Cu-based sulfides specifically designed to present intrinsically low thermal conductivity for potential thermoelectric applications.

Topics
  • impedance spectroscopy
  • mineral
  • compound
  • resistivity
  • phase
  • laser emission spectroscopy
  • transmission electron microscopy
  • defect
  • thermal conductivity
  • crystallinity
  • sintering
  • densification
  • hot pressing