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CARBIDE-BASED HIGH-ENTROPY CERAMIC, RARE-EARTH-CONTAINING CARBIDE-BASED HIGH-ENTROPY CERAMIC AND FIBERS AND PRECURSOR THEREOF, AND PREPARATION METHOD THEREFOR
Provided are a high-entropy carbide ceramic, a rare earth-containing high-entropy carbide ceramic, fibers thereof, precursors thereof, and preparation methods thereof. The precursor includes at least four elements selected from Ti, Zr, Hf, V, Nb, Ta, Mo, and W, with each metal element accounting for 5-35% of the total molar quantity of metal elements in the precursor. The rare earth-containing high-entropy carbide ceramic precursor includes at least four transition metal elements and at least one rare-earth metal element. The high-entropy ceramic is a single-crystal-phase high-performance ceramic prepared from the precursor, with each element being homogenously distributed at molecular level. The method for preparing the high-entropy ceramic fiber includes uniformly mixing high-entropy carbide ceramic precursor containing target metal elements with spinning aid and solvent to prepare a spinnable precursor solution, followed by spinning, pyrolyzation, and high-temperature solid solution to prepare the high-entropy carbide ceramic fiber.
CARBIDE-BASED HIGH-ENTROPY CERAMIC, RARE-EARTH-CONTAINING CARBIDE-BASED HIGH-ENTROPY CERAMIC AND FIBERS AND PRECURSOR THEREOF, AND PREPARATION METHOD THEREFOR
Provided are a high-entropy carbide ceramic, a rare earth-containing high-entropy carbide ceramic, fibers thereof, precursors thereof, and preparation methods thereof. The precursor includes at least four elements selected from Ti, Zr, Hf, V, Nb, Ta, Mo, and W, with each metal element accounting for 5-35% of the total molar quantity of metal elements in the precursor. The rare earth-containing high-entropy carbide ceramic precursor includes at least four transition metal elements and at least one rare-earth metal element. The high-entropy ceramic is a single-crystal-phase high-performance ceramic prepared from the precursor, with each element being homogenously distributed at molecular level. The method for preparing the high-entropy ceramic fiber includes uniformly mixing high-entropy carbide ceramic precursor containing target metal elements with spinning aid and solvent to prepare a spinnable precursor solution, followed by spinning, pyrolyzation, and high-temperature solid solution to prepare the high-entropy carbide ceramic fiber.
CARBIDE-BASED HIGH-ENTROPY CERAMIC, RARE-EARTH-CONTAINING CARBIDE-BASED HIGH-ENTROPY CERAMIC AND FIBERS AND PRECURSOR THEREOF, AND PREPARATION METHOD THEREFOR
KARBIDBASIERTE KERAMIK MIT HOHER ENTROPIE, SELTENERDHALTIGE KERAMIK AUF KARBIDBASIS MIT HOHER ENTROPIE UND FASERN UND VORLÄUFER DAVON UND HERSTELLUNGSVERFAHREN DAFÜR
CÉRAMIQUE À ENTROPIE ÉLEVÉE À BASE DE CARBURE, CÉRAMIQUE ET FIBRES À ENTROPIE ÉLEVÉE À BASE DE CARBURE CONTENANT DES TERRES RARES ET LEUR PRÉCURSEUR, ET PROCÉDÉ DE PRÉPARATION ASSOCIÉ
YE LI (author) / ZHAO TONG (author) / SUN YANAN (author) / HAN WEIJIAN (author) / CHEN FENGHUA (author)
2023-10-25
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
/
C08L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
,
Massen auf Basis makromolekularer Verbindungen
/
D01F
Chemische Gesichtspunkte bei der Herstellung von produzierten Filamenten, Zwirnen, Fasern, Borsten oder Bändern
,
CHEMICAL FEATURES IN THE MANUFACTURE OF MAN-MADE FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
| European Patent Office | 2021
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Carbide high-entropy ceramic precursor, high-entropy ceramic and preparation method
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