Machines. Technologies. Materials.
Vol. 19 (2025), Issue 12, pg(s) 479-482

MATERIALS

Phenomena during liquid-phase assisted sintering in High-Entropy Ceramics with a Ni binder

  • 1 G. V. Kurdyumov Institute for Metal Physics of the N.A.S. of Ukraine
  • 2 G. V. Kurdyumov Institute for Metal Physics of the N.A.S. of Ukraine; Frantsevich Institute for Problems in Materials Science, Kyiv, Ukraine
  • 3 Interregional academy of personal management, Kyiv, Ukraine

Abstract

This study investigates the mechanisms of liquid-phase assisted sintering in high-entropy ceramics (HECs) using a nickel binder. The research focuses on the densification process of (Ti, Zr, Hf, Nb, Ta)C-based cermets with 10 vol% Ni, and how pressure influence liquid-phase extraction. Results show that eutectic reactions between Ni and carbide phases was observed during liquid formation below 1400°C. Microstructural analysis reveals a nickel-rich matrix, solid solutions, and NbC-based carbide inclusions in the extracted drop. These findings provide insights into optimizing processing parameters for advanced HEC-based composites.

Keywords

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