Cédric Bourgès

Transport and hardness properties of Cr2TiAlC2 MAX phase synthesized by reactive spark plasma sintering

Florent Baudouin, Cédric Bourgès, Illia Serhiienko, Théo Duchesne et autres

Cr2TiAlC2 MAX phase was synthesized for the first time by reactive spark plasma sintering (SPS) from pure metallic precursors. A systematic study of each SPS parameter was performed to promote the formation of the pure phase. The transport properties of the resulting …

Transport and hardness properties of Cr 2 TiAlC 2 MAX phase synthesized by reactive spark plasma sintering

Florent Baudouin, Cédric Bourgès, Illia Serhiienko, Théo Duchesne et autres

Cr2TiAlC2 MAX phase was synthesized for the first time by reactive spark plasma sintering (SPS) from pure metallic precursors. A systematic study of each SPS parameter was performed to promote the formation of the pure phase. The transport properties of the resulting …

jp, fr (code pays fourni par la source)

Transport and hardness properties of Cr2TiAlC2 MAX phase synthesized by reactive spark plasma sintering

Florent Baudouin, Cédric Bourgès, Illia Serhiienko, Théo Duchesne et autres

Cr2TiAlC2 MAX phase was synthesized for the first time by reactive spark plasma sintering (SPS) from pure metallic precursors. A systematic study of each SPS parameter was performed to promote the formation of the pure phase. The transport properties of the resulting …

Influence of the nature of plasticizers in NiO-3YSZ tape-casting formulation on drying and mechanical behaviors of green tapes for fuel cell applications

C. Guillet, Cédric Bourgès, E. Béchade, R. Billard et autres

Conductivity Type Switching in Bi-Added Co4Sb12-Based Skutterudites via Compositing Effect

Krushna Kumari Raut, Cédric Bourgès, Andrei Novitskii, Takao Mori

Unfilled Co 4 Sb 12 skutterudites typically exhibit n -type conductivity at room temperature due to native donor-type defects associated with off-stoichiometric compositions arising from Sb loss during high-temperature synthesis. Achieving stable p -type conductivity in the absence of rare-earth fillers or …

jp, fr (code pays fourni par la source)

Zinc Stabilized Cation Ordered Chalcopyrite Thin Film for Enhanced Thermoelectric Power Generation Near Room Temperature

Hong Jian Pang, Cédric Bourgès, Naohito Tsujii, Jha Rajveer et autres

Sulfides represent a significant family in thermoelectric materials for their low cost and promising performance. Sulfide thin films have been a very challenging topic due to the difficulty in finely controlling the composition. The fabrication of CuFeS2 thin film attracts researchers as …

jp (code pays fourni par la source)

Co-casting process coupled with phase-inversion for the manufacturing of SOFC and SOEC electrochemical cells and comparative study to conventional tape casting process

Emilie Béchade, Anne Aimable, Cédric Bourgès, Christophe Tenailleau et autres

The conventional tape casting process is used to produce hydrogen electrodes (NiO-YSZ) in solid oxide cell applications, where the porosity is directly correlated to the content of pore-forming agents in the suspensions. Concurrently, a new method of co-casting coupled with phase-inversion (CCPI) …

fr (code pays fourni par la source)

High-temperature thermal conductivity of yttrium and rare-earth iron garnets

Makoto Tachibana, Cédric Bourgès, Takao Mori

Abstract Yttrium and rare-earth iron garnets (R 3Fe5O12) are ferrimagnetic insulators that have been widely studied for magnetic and spintronic applications. In this study, we report the thermal conductivity (κ) between 300 and 773 K for the single crystals of R 3Fe5O12, …

jp, fr (code pays fourni par la source)

Enhancing thermoelectric efficiency of GeTe through process improvement via active learning assisted by Bayesian optimisation

Florent Pawula, Mathias Hamitouche, Linda Abbassi, Agathe Bajan et autres

Pristine GeTe is an archetypal mid-temperature thermoelectric, but its full potential is obscured by an eleven-dimensional process space. We combine active learning with Bayesian optimisation (ALBO) to traverse this landscape, encompassing melt-annealing and spark-plasma-sintering conditions. Starting from five random experiments, ALBO iteratively …

jp, fr (code pays fourni par la source)

Steric confinement for suppressing ion migration and boosting thermoelectric performance in Cu–S system via Ag and Se co-doping

Xinyuan Wang, Cédric Bourgès, Jean‐Claude Crivello, Takao Mori

The Cu-S superionic compound exhibits excellent thermoelectric (TE) performance in the mid-temperature region. However, obtaining a thermally and electrically stable material in this system is still challenging. Herein, motivated by the perspective of steric confinement for suppressing Cu + migration, we designed …

jp, fr (code pays fourni par la source)

Decoupled charge and heat transport in Fe2VAl composite thermoelectrics with topological-insulating grain boundary networks

Fabian Garmroudi, Illia Serhiienko, Michael Parzer, Sanyukta Ghosh et autres

Abstract Decoupling charge and heat transport is essential for optimizing thermoelectric materials. Strategies to inhibit lattice-driven heat transport, however, also compromise carrier mobility, limiting the performance of most thermoelectrics, including Fe 2 VAl Heusler compounds. Here, we demonstrate an innovative approach, which …

at, jp, de (code pays fourni par la source)

Zinc Stabilized Cation Ordered Chalcopyrite Thin Film for Enhanced Thermoelectric Power Generation Near Room Temperature

Hong Jian Pang, Cédric Bourgès, Naohito Tsujii, Jha Rajveer et autres

Multinary sulfides represent a significant family of semiconductors because of their low cost and promising performance, yet controlling their composition is challenging. CuFeS 2 thin films are particularly attractive because of their great potential in thermoelectricity and photovoltaics. Herein we reveal the …

jp (code pays fourni par la source)