A super-hard high entropy boride containing Hf, Mo, Ti, V, and W
Publication
, Journal Article
Filipovic, S; Obradovic, N; Hilmas, GE; Fahrenholtz, WG; Brenner, DW; Maria, JP; Wolfe, DE; Zurek, E; Campilongo, X; Curtarolo, S
Published in: Journal of the American Ceramic Society
July 1, 2024
Super-hard (Hf,Mo,Ti,V,W)B2 was synthesized by boro-carbothermal reduction and densified by spark plasma sintering. This composition was produced for the first time as a single-phase ceramic in the present research. The optimized ceramic had a single hexagonal AlB2-type crystalline phase with a grain size of 3.8 µm and homogeneous distribution of the constituent metals. The Vickers hardness exhibited the indentation size effect, increasing from 27 GPa at a load of 9.8 N to as high as 66 GPa at a load of 0.49 N. This is the highest hardness reported to date for high entropy boride ceramics.
Duke Scholars
Published In
Journal of the American Ceramic Society
DOI
EISSN
1551-2916
ISSN
0002-7820
Publication Date
July 1, 2024
Volume
107
Issue
7
Start / End Page
4430 / 4435
Related Subject Headings
- Materials
- 4016 Materials engineering
- 0913 Mechanical Engineering
- 0912 Materials Engineering
Citation
APA
Chicago
ICMJE
MLA
NLM
Filipovic, S., Obradovic, N., Hilmas, G. E., Fahrenholtz, W. G., Brenner, D. W., Maria, J. P., … Curtarolo, S. (2024). A super-hard high entropy boride containing Hf, Mo, Ti, V, and W. Journal of the American Ceramic Society, 107(7), 4430–4435. https://doi.org/10.1111/jace.19795
Filipovic, S., N. Obradovic, G. E. Hilmas, W. G. Fahrenholtz, D. W. Brenner, J. P. Maria, D. E. Wolfe, E. Zurek, X. Campilongo, and S. Curtarolo. “A super-hard high entropy boride containing Hf, Mo, Ti, V, and W.” Journal of the American Ceramic Society 107, no. 7 (July 1, 2024): 4430–35. https://doi.org/10.1111/jace.19795.
Filipovic S, Obradovic N, Hilmas GE, Fahrenholtz WG, Brenner DW, Maria JP, et al. A super-hard high entropy boride containing Hf, Mo, Ti, V, and W. Journal of the American Ceramic Society. 2024 Jul 1;107(7):4430–5.
Filipovic, S., et al. “A super-hard high entropy boride containing Hf, Mo, Ti, V, and W.” Journal of the American Ceramic Society, vol. 107, no. 7, July 2024, pp. 4430–35. Scopus, doi:10.1111/jace.19795.
Filipovic S, Obradovic N, Hilmas GE, Fahrenholtz WG, Brenner DW, Maria JP, Wolfe DE, Zurek E, Campilongo X, Curtarolo S. A super-hard high entropy boride containing Hf, Mo, Ti, V, and W. Journal of the American Ceramic Society. 2024 Jul 1;107(7):4430–4435.
Published In
Journal of the American Ceramic Society
DOI
EISSN
1551-2916
ISSN
0002-7820
Publication Date
July 1, 2024
Volume
107
Issue
7
Start / End Page
4430 / 4435
Related Subject Headings
- Materials
- 4016 Materials engineering
- 0913 Mechanical Engineering
- 0912 Materials Engineering