High-temperature flexural strength performance of ternary high-entropy carbide consolidated via spark plasma sintering of TaC, ZrC and NbC

By D. Demirskyi, H. Borodianska, Tohru S. Suzuki, Y. Sakka, K. Yoshimi, O. Vasylkiv. Scripta Materialia, 2019

139 citations recorded by the source corpus.

Abstract The solid solution formation and consolidation of the (Ta,Zr,Nb)C single-phase ceramic made from commercial TaC, ZrC and NbC powders prepared by spark plasma sintering at the temperature of 1920 °C was investigated. Phase analysis and lattice parameter measurements by X-ray diffraction showed multi-stage formation of the single-phase high-entropy-type carbide with the lattice parameter of 4.535 A. The flexural strength and fracture toughness at room temperature were 460 ± 24 MPa and 2.9 MPa m1/2, respectively. With an increase in temperature, the flexural strength showed an increase up to 1600 °C to 496 ± 44 MPa, then decreased after 1800 °C to 366 ± 46 MPa.

Subfields: Aerospace Engineering, Mechanical Engineering

View Paper: https://www.semanticscholar.org/paper/4d49689470a243317c8aa10402868a55df2bab9c

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Citations in the corpus

• A step forward from high-entropy ceramics to compositionally complex ceramics: a new perspective (2020, background): “006 [22] Demirskyi D, Borodianska H, Suzuki TS et al (2019) Hightemperature flexural strength performance of ternary highentropy carbide consolidated via spark plasma sintering of”