Microstructure of (Hf-Ta-Zr-Nb) C high-entropy carbide at micro and nano/atomic level

J Dusza, P Švec, V Girman, R Sedlák, EG Castle… - Journal of the European …, 2018 - Elsevier
Abstract A High Entropy (Hf-Ta-Zr-Nb) C Ultra-High Temperature Ceramic (UHTC) was
fabricated by ball milling and Spark Plasma Sintering (SPS) with a density of 99%. The …

Sintering behaviour, solid solution formation and characterisation of TaC, HfC and TaC–HfC fabricated by spark plasma sintering

O Cedillos-Barraza, S Grasso, N Al Nasiri… - Journal of the European …, 2016 - Elsevier
Solid solution formation and sintering behaviour of TaC–HfC ceramics made from
commercial TaC and HfC powders prepared using spark plasma sintering (SPS) at …

Promising ultra-high-temperature ceramic materials for aerospace applications

EP Simonenko, DV Sevast'Yanov… - Russian journal of …, 2013 - Springer
Some aspects of heat transfer upon the interaction between components with a sharp
leading edge and high-enthalpy high-speed flow of dissociated air have been considered; …

Microstructural evolution of Si (HfxTa1− x)(C) N polymer-derived ceramics upon high-temperature anneal

N Thor, J Bernauer, NC Petry, E Ionescu… - Journal of the European …, 2023 - Elsevier
Ultra-high temperature ceramic nanocomposites (UHTC-NC) within the Si (Hf x Ta 1− x)(C)
N system were synthesized via the polymer-derived ceramics (PDC) synthesis route. The …

Solid solution synthesis of tantalum carbide‐hafnium carbide by spark plasma sintering

C Zhang, A Gupta, S Seal, B Boesl… - Journal of the …, 2017 - Wiley Online Library
Solid solutions of Tantalum carbide (TaC) and Hafnium carbide (HfC) were synthesized by
spark plasma sintering. Five different compositions (pure HfC, HfC‐20 vol% TaC, HfC‐50 …

High entropy ultra-high temperature ceramic thermal insulator (Zr1/5Hf1/5Nb1/5Ta1/5Ti1/5) C with controlled microstructure and outstanding properties

Z Shao, Z Wu, L Sun, X Liang, Z Luo, H Chen… - Journal of Materials …, 2022 - Elsevier
Due to advancements of hypersonic vehicles, ultra-high temperature thermal insulation
materials are urgently requested to shield harsh environment with superhigh heat flux …

Phase, hardness, and deformation slip behavior in mixed HfxTa1-xC

CJ Smith, XX Yu, Q Guo, CR Weinberger… - Acta Materialia, 2018 - Elsevier
A series of Hf x Ta 1-x C atomic compositions, where x= 0.0, 0.13, 0.25, 0.50, 0.75, 0.83, and
1.0, were computationally and experimentally studied in terms of their phase, hardness, and …

Three-dimensional graphene-carbon nanotube reinforced ceramics and computer simulation

W Zhao, J Sun, Z Huang - Ceramics International, 2021 - Elsevier
Graphene and carbon nanotube (CNT) have been the striking reinforcements for ceramics
as a function of their unique structures together with exceptional multi-performance …

Understanding the oxidation behavior of Ta–Hf–C ternary ceramics at high temperature

J Zhang, S Wang, W Li, Y Yu, J Jiang - Corrosion Science, 2020 - Elsevier
For high-temperature applications, poor oxidation performance of Ta–Hf–C ternary ceramics
is an important life-limiting factor. In this work, the oxidation mechanisms of various …

Arc melting: a novel method to prepare homogeneous solid solutions of transition metal carbides (Zr, Ta, Hf)

Z Zhang, S Fu, F Aversano, M Bortolotti, H Zhang… - Ceramics …, 2019 - Elsevier
Carbides solid solutions of Zr, Hf and Ta were prepared using arc melting. Seven equimolar
compositions of mono, binary and ternary carbides were fabricated by mixing monocarbides …