Search Results - "Chevallier, G."

Thermoelectric properties of ZnO ceramics densified through spark plasma sintering by Radingoana, P.M., Guillemet-Fritsch, S., Noudem, J., Olubambi, P.A., Chevallier, G., Estournès, C.

“…Thermoelectric properties of pure ZnO ceramics were investigated in this study. ZnO powders were sintered using spark plasma sintering by varying temperature…”
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Full-field measurements with Digital Image Correlation for vibro-impact characterisation by Chabrier, R., Sadoulet-Reboul, E., Chevallier, G., Foltête, E., Jeannin, T.

“…•An experimental set-up (a ball between two plates) was designed to study vibro-impact phenomenon.•Motion reconstruction is performed using Digital Image…”
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Influence of processing parameters on the densification and the microstructure of pure zinc oxide ceramics prepared by spark plasma sintering by Radingoana, P.M., Guillemet-Fritsch, S., Olubambi, P.A., Chevallier, G., Estournès, C.

“…Due to the sensitivity of nanopowders and the challenges in controlling the grain size and the density during the sintering of ceramics, a systematic study was…”
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Nonlinear model order reduction of jointed structures for dynamic analysis by Festjens, H., Chevallier, G., Dion, J.L.

“…Assembled structures generally show weak nonlinearity, thus it is rather commonplace to assume that their modes are both linear and uncoupled. At small to…”
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Spark and plasma in spark plasma sintering of rigid ceramic nanoparticles: A model system of YAG by Marder, R., Estournès, C., Chevallier, G., Chaim, R.

“…Yttrium aluminum garnet (YAG) nano-particles were spark plasma sintered between 1100°C and 1400°C under 2–100MPa pressure without isothermal treatments. The…”
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Scale-Up of Silver-Copper Composite Wires by Spark Plasma Sintering and Room Temperature Wire-Drawing for Use in 100 T Triple Coil at LNCMI by Tardieu, S., Beard, J., Mesguich, D., Lonjon, A., Ferreira, N., Chevallier, G., Estournes, C., Laurent, C., Lecouturier-Dupouy, F.

“…The generation of non-destructive pulsed magnetic fields of 100 T involves high mechanical stress, due to the Lorentz forces, sustainable by few conductors. At…”
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Fully coupled electrothermal and mechanical simulation of the production of complex shapes by spark plasma sintering by Van der Laan, A., Epherre, R., Chevallier, G., Beynet, Y., Weibel, A., Estournès, C.

“…The obtention of an accurate mechanical model of the spark plasma sintering (SPS) requires the identification of creep parameters. Those parameters are usually…”
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Numerical model for sparking and plasma formation during spark plasma sintering of ceramic compacts by Marder, R., Estournès, C., Chevallier, G., Chaim, R.

“…The conditions for spark discharge and plasma formation in non-conducting ceramic granular compacts subjected to spark plasma sintering (SPS) were analyzed…”
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On the compromise between performance and robustness for viscoelastic damped structures by Jaboviste, K., Sadoulet-Reboul, E., Peyret, N., Arnould, C., Collard, E., Chevallier, G.

“…•The study aims at comparing the damping efficiency of two viscoelastic materials in an uncertain temperature context.•The damping efficiency is numerically…”
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Electro-thermal measurements and finite element method simulations of a spark plasma sintering device by Pavia, A., Durand, L., Ajustron, F., Bley, V., Chevallier, G., Peigney, A., Estournès, C.

“…► Current, voltage and temperature measurements were performed to clarify the operation of the SPS. ► High frequency voltage and current measures shows there…”
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Hot pressing and spark plasma sintering of alumina: Discussion about an analytical modelling used for sintering mechanism determination by Guyot, P., Antou, G., Pradeilles, N., Weibel, A., Vandenhende, M., Chevallier, G., Peigney, A., Estournès, C., Maître, A.

“…The validity of the model for sintering under uniaxial pressure proposed by Bernard-Granger et al. has been investigated by studying the densification kinetics…”
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Pulse analysis and electric contact measurements in spark plasma sintering by Maniere, C., Pavia, A., Durand, L., Chevallier, G., Bley, V., Afanga, K., Peigney, A., Estournès, C.

“…•Shape of the pulse sequence depends on the electric power required to heat the SPS tools.•The strong role of the electric contact (EC) between the parts of…”
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Efficiency of new ozone filters for NO2 sensing and air depollution by Othman, M., Théron, C., Bendahan, M., Caillat, L., Rivron, C., Bernardini, S., Le Chevallier, G., Chevallier, E., Som, M.-P., Aguir, K., Tran-Thi, T.-H.

“…•Selective detection of NO2 with MOX sensors with specific filters.•Specific filters for O3 trapping.•Functionalized nanoporous materials doped with indigo…”
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Mesoporous binder-free monoliths of few-walled carbon nanotubes by spark plasma sintering by Laurent, Ch, Dinh, T. M., Barthélémy, M.-C., Chevallier, G., Weibel, A.

“…Carbon nanotubes with few walls (FWCNTs) are prepared by catalytic chemical vapor deposition. Transmission electron microscopy investigations for each sample…”
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ZnO-based varistors prepared by spark plasma sintering by Beynet, Y., Izoulet, A., Guillemet-Fritsch, S., Chevallier, G., Bley, V., Pérel, T., Malpiece, F., Morel, J., Estournès, C.

“…Varistor ceramics were prepared by spark plasma sintering (SPS) using two doped zinc oxide based powders. Optimized sintering cycle for the commercial powder…”
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Spark plasma sintered carbon electrodes for electrical double layer capacitor applications by Daffos, B., Chevallier, G., Estournès, C., Simon, P.

“…The spark plasma sintering (SPS) is an emerging process for shaping any type of materials (metals, ceramic, polymers and their composites). The advantage of…”
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General Theory of Cathodic and Anodic Stripping Voltammetry at Solid Electrodes:  Mathematical Modeling and Numerical Simulations by Ward Jones, Sarah E, Chevallier, François G, Paddon, Christopher A, Compton, Richard G

“…Theory is presented to describe the voltammetric signals associated with the stripping phase of stripping voltammetry at solid electrodes. Three mathematical…”
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Plasma in spark plasma sintering of ceramic particle compacts by Marder, R., Estournès, C., Chevallier, G., Chaim, R.

“…Cuboidal LiF microcrystal powder was densified by spark plasma sintering at different pressures up to 500°C. Densification at pressures above the yield stress…”
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Identification of the viscoelastic properties of the tBA/PEGDMA polymer from multi-loading modes conducted over a wide frequency–temperature scale range by Butaud, P., Ouisse, M., Placet, V., Renaud, F., Travaillot, T., Maynadier, A., Chevallier, G., Amiot, F., Delobelle, P., Foltête, E., Rogueda-Berriet, C.

“…The viscoelastic properties of tBA/PEGDMA, which is a Shape Memory Polymer (SMP), were characterized over wide bands of frequency and temperature. The…”
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Harmonic component detection: Optimized Spectral Kurtosis for operational modal analysis by Dion, J.-L., Tawfiq, I., Chevallier, G.

“…This work is a contribution in the field of Operational Modal Analysis to identify the modal parameters of mechanical structures using only measured responses…”
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