Abstract
Compositionally complex (Hf,Ti,Zr,W)B2/(Hf,Ti,Zr,W)C-based ceramics were produced with different boride and carbide phase contents by varying the C/B4C molar ratio used in boro/carbothermal reduction. A monoboride phase based on WB was detected in all compositions. As the C/B4C ratio was varied, the WB content decreased from 23.7 vol% for a C/B4C ratio of 6.0–15.3 vol% for a C/B4C ratio of 10.3. Further increases in the C/B4C ratio increased the WB content. The monoboride phase contained mainly W and Ti in a solid solution with the nominal composition of (W0.86Ti0.14)B that change with variation in processing conditions. The highest hardness was 27.8 GPa for a ceramic containing 15.3 vol% WB. The Vickers hardness decreased as the content of the softer WB phase increased, indicating the hardness was governed by its content.
Recommended Citation
S. Filipović et al., "Hardness of (Hf,Ti,W,Zr)B2/(Hf,Ti,W,Zr)C-Based Ceramics with Varying WB Content," Journal of Alloys and Compounds, vol. 1055, article no. 186406, Elsevier, Feb 2026.
The definitive version is available at https://doi.org/10.1016/j.jallcom.2026.186406
Department(s)
Materials Science and Engineering
Publication Status
Full Text Access
Keywords and Phrases
Compositionally complex Borides; Compositionally complex Carbides; Hardness; Spark Plasma Sintering; Ultrahigh Temperature Ceramics
International Standard Serial Number (ISSN)
0925-8388
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2026 Elsevier, All rights reserved.
Publication Date
15 Feb 2026
Comments
Ministarstvo Prosvete, Nauke i Tehnološkog Razvoja, Grant N00014–21–1–2515