Fabrication of high-entropy carbide (TiZrHfTaNb)С by high-energy ball milling
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DOI: 10.1016/j.ceramint.2021.08.158
Abstract: Abstract In this study, we report on the process to fabricate powder of high-entropy carbide (TiTaNbZrHf)С. We have obtained a high-entropy carbide phase by two-step high-energy ball milling (HEBM) of metallic precursors and carbon. At… read more here.
Keywords: entropy carbide; high energy; energy ball; high entropy ... See more keywords
Gradient microstructure development and grain growth inhibition in high-entropy carbide ceramics prepared by reactive spark plasma sintering
Sign Up to like & getrecommendations! Published in 2020 at "Journal of The European Ceramic Society"
DOI: 10.1016/j.jeurceramsoc.2019.12.034
Abstract: Abstract High-entropy carbide ceramics (Ti0.2Hf0.2Nb0.2Ta0.2W0.2)C is prepared from five transition metal oxides and graphite by reactive spark plasma sintering. X-ray diffraction indicates the synthesized ceramics with the single-phase face-centered cubic structure. The elemental distribution maps… read more here.
Keywords: entropy carbide; grain; carbide ceramics; high entropy ... See more keywords
Small scale fracture and strength of high-entropy carbide grains during microcantilever bending experiments
Sign Up to like & getrecommendations! Published in 2020 at "Journal of The European Ceramic Society"
DOI: 10.1016/j.jeurceramsoc.2020.04.023
Abstract: Abstract The fracture behaviour of (Hf-Ta-Zr-Nb)C high-entropy carbide grains was investigated by microcantilever bending experiments, and fracture related properties (e.g. strength, toughness) were determined using linear beam theory. Microcantilevers were FIB-milled from large grains with… read more here.
Keywords: strength; fracture; carbide grains; entropy carbide ... See more keywords
Synthesis of single-phase high-entropy carbide powders
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DOI: 10.1016/j.scriptamat.2018.10.049
Abstract: Abstract High-entropy carbide powders were produced by a two-step synthesis process consisting of carbothermal reduction followed by solid solution formation. Nominally pure (Hf,Zr,Ti,Ta,Nb)C in a single-phase rock salt structure had an average particle size of… read more here.
Keywords: carbide powders; entropy carbide; high entropy; single phase ... See more keywords
Microstructure, Mechanical and Tribological Properties of High-Entropy Carbide (MoNbTaTiV)C5
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DOI: 10.3390/ma16114115
Abstract: High-entropy carbide (NbTaTiV)C4 (HEC4), (MoNbTaTiV)C5 (HEC5), and (MoNbTaTiV)C5-SiC (HEC5S) multiphase ceramics were prepared by spark plasma sintering (SPS) at 1900 to 2100 °C, using metal carbide and silicon carbide (SiC) as raw materials. Their microstructure,… read more here.
Keywords: carbide; microstructure mechanical; entropy carbide; mechanical tribological ... See more keywords