(Hf0.2Zr0.2Ta0.2Nb0.2Ti0.2)C high‐entropy ceramics with low thermal conductivity
hal.structure.identifier | Department of Mechanical & Materials Engineering | |
dc.contributor.author | YAN, Xueliang | |
hal.structure.identifier | Department of Electrical Engineering | |
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
dc.contributor.author | CONSTANTIN, Loic | |
hal.structure.identifier | Department of Electrical Engineering | |
dc.contributor.author | LU, Yongfeng | |
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
dc.contributor.author | SILVAIN, Jean-François | |
hal.structure.identifier | Department of Mechanical & Materials Engineering | |
hal.structure.identifier | Nebraska Center for Materials and Nanoscience | |
hal.structure.identifier | Nebraska Center for Energy Sciences Research | |
dc.contributor.author | NASTASI, Michael | |
hal.structure.identifier | Department of Mechanical & Materials Engineering | |
hal.structure.identifier | Nebraska Center for Materials and Nanoscience | |
dc.contributor.author | CUI, Bai | |
dc.date.issued | 2018-10 | |
dc.identifier.issn | 0002-7820 | |
dc.description.abstractEn | A novel high‐entropy carbide ceramic, (Hf0.2Zr0.2Ta0.2Nb0.2Ti0.2)C, with a single‐phase rock salt structure, was synthesized by spark plasma sintering. X‐ray diffraction confirmed the formation of a single‐phase rock salt structure at 26‐1140°C in Argon atmosphere, in which the 5 metal elements may share a cation position while the C element occupies the anion position. (Hf0.2Zr0.2Ta0.2Nb0.2Ti0.2)C exhibits a much lower thermal diffusivity and conductivity than the binary carbides HfC, ZrC, TaC, and TiC, which may result from the significant phonon scattering at its distorted anion sublattice. (Hf0.2Zr0.2Ta0.2Nb0.2Ti0.2)C inherits the high elastic modulus and hardness of the binary carbide ceramics. | |
dc.language.iso | en | |
dc.publisher | Wiley | |
dc.subject.en | high-entropy ceramics | |
dc.subject.en | microstructure | |
dc.subject.en | spark plasma sintering | |
dc.subject.en | thermal conductivity | |
dc.title.en | (Hf0.2Zr0.2Ta0.2Nb0.2Ti0.2)C high‐entropy ceramics with low thermal conductivity | |
dc.type | Article de revue | |
dc.identifier.doi | 10.1111/jace.15779 | |
dc.subject.hal | Chimie/Matériaux | |
bordeaux.journal | Journal of the American Ceramic Society | |
bordeaux.page | 4486-4491 | |
bordeaux.volume | 101 | |
bordeaux.issue | 10 | |
bordeaux.peerReviewed | oui | |
hal.identifier | hal-01866538 | |
hal.version | 1 | |
hal.popular | non | |
hal.audience | Internationale | |
hal.origin.link | https://hal.archives-ouvertes.fr//hal-01866538v1 | |
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