Author ORCID Identifier
Michael Yeung:https://orcid.org/0000-0002-5677-6970
Reza Mohammadi:https://orcid.org/0000-0003-4676-4885
Document Type
Data
Publication Date
2026
DOI
https://doi.org/10.1039/D6MH00408C
Abstract
Abstract for data:
Raw data for the journal publication, Silicon-stabilized three-dimensional covalent networks in high entropy diborides. ReadMe file provided.
Abstract for Journal publication:
High entropy ceramics offer a pathway to stabilize unconventional chemistries beyond traditional alloying rules. We report the incorporation of silicon into an AlB2-type high entropy diboride, Cr0.2Nb0.2Si0.2Ta0.2Ti0.2B2, despite silicon violating classical Hume-Rothery rules for alloying. Arc melting produced a phase-pure, chemically homogeneous structure, as confirmed by powder X-ray diffraction (pXRD) and scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM–EDS). Silicon occupies the metal sublattice, forming directional Si–B covalent bonds that link boron layers into a three-dimensional network within the otherwise layered structure. Mechanical testing shows that bulk Vickers hardness remains unchanged, while nanoindentation reveals a moderate increase in hardness at low loads and a ∼10% enhancement in Young's modulus, indicating strengthened lattice bonding with the addition of silicon. These results demonstrate that high configurational entropy can stabilize main-group elements in transition metal diborides, enabling new bonding arrangements and elastic behavior, and expanding the design space of high entropy alloys.
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.
Recommended Citation
Yeung, Michael and Mohammadi, Reza, "Raw Data for the Manuscript "Silicon-Stabilized Three-Dimensional Covalent Networks in High Entropy Diborides"" (2026). Chemistry Department Faculty Scholarship. 11.
https://scholarsarchive.library.albany.edu/chemistry_fac_scholar/11
Figure 1b.vesta (9 kB)
Figure 2 Bottom.raw (22 kB)
Figure 2 Top.raw (22 kB)
Figure 3.h5 (28233 kB)
Figure 4 Bottom.ispd (56 kB)
Figure 4 Top.ispd (56 kB)
Figure S3.h5 (22405 kB)
Figure 5.xsf (8261 kB)
Figure S4.xsf (1070 kB)
Table 2 HEB.xlsx (38 kB)
Table 2 MEB.xlsx (31 kB)
Table 3 HEB.mit (910 kB)
Table 3 MEB.mit (808 kB)
Terms of Use
This work is made available under the Scholars Archive Terms of Use.
Comments
Raw data used to generate data for publication, which can be found here:
Abraham A. Rosenberg, Ashton Bressler, Noah Teague, Gregory M. John, Colton D. Seymour, Daniel T. Lintz, Yiren Zhang, Joseph T. Doane, Alan Chen, Reza Mohammadi, Michael T. Yeung; Silicon-stabilized three-dimensional covalent networks in high entropy diborides. Mater. Horiz. 2026; 13 (13): 6407–6413. https://doi.org/10.1039/d6mh00408c