Abstract
Zirconium carbide (ZrC) was fabricated by material extrusion additive manufacturing (AM) followed by pressureless sintering at 2000°C for two hours, achieving a relative density of 90.3 %. SEM analysis revealed grains of 4.6 ± 1.8 μm; XRD confirmed single phase ZrC. A stoichiometry of ZrC0.92 was determined by XPS. Four-point flexure testing exhibited a strength of 331.3 ± 57.1 MPa and Young's modulus of 232.8 ± 13.1 GPa. Vickers hardness was 13.6 ± 1.0 GPa and 11.6 ± 0.5 GPa at 4.91 and 9.81 N, respectively. Indentation fracture resistance was 2.9 ± 0.2 MPa⋅m1/2; Griffith analysis confirmed the largest grains as the critical flaw. Thermal conductivity increased with temperature and was 13.4 W/m·K at room temperature. Electrical resistivity was 122.4 ± 0.5 μΩ⋅cm. This work adds to the viability of additively manufactured ZrC and is the first to report detailed thermal and mechanical properties for ZrC produced by material extrusion AM.
Recommended Citation
C. Sabata et al., "Thermal and Mechanical Properties of Zirconium Carbide Manufactured Via Ceramic On-demand Extrusion," Journal of the European Ceramic Society, vol. 46, no. 8, article no. 118159, Elsevier, Jul 2026.
The definitive version is available at https://doi.org/10.1016/j.jeurceramsoc.2026.118159
Department(s)
Materials Science and Engineering
Publication Status
Full Text Access
Keywords and Phrases
Additive manufacturing; Direct ink write; Material extrusion additive manufacturing; Mechanical properties; Microstructure; Thermal properties; Zirconium carbide
International Standard Serial Number (ISSN)
1873-619X; 0955-2219
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2026 Elsevier, All rights reserved.
Publication Date
01 Jul 2026
Comments
Missouri University of Science and Technology, Grant None