Synthesis of high-entropy diboride TiZrNbHfTaB2 by vacuum-free direct current arc plasma method; International Journal of Refractory Metals and Hard Materials; Vol. 134
| Parent link: | International Journal of Refractory Metals and Hard Materials.— .— Amsterdam: Elsevier Science Publishing Company Inc. Vol. 134.— 2026.— Article number 107417, 7 p. |
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| Övriga upphovsmän: | , , , , , , , |
| Sammanfattning: | Title screen The study is the first to demonstrate the potential for synthesizing micro- and nanosized particles of high-entropy boride (HEB) TiZrNbHfTaB2 by vacuum-free electric arc method. Arcing induces the formation of carbon monoxide and carbon dioxide, providing a self-shielding effect of the reaction volume from atmospheric oxygen, which shifts the reaction towards boride formation. The synthesis product was identified as a solid solution with the AlB2-type hexagonal lattice, containing atoms of titanium, zirconium, niobium, hafnium, and tantalum. The lattice parameters of the HEB TiZrNbHfTaB2 phase were a = 3.1045 Å and c = 3.3775 Å. The analysis of the synthesis product revealed agglomerates of micron-sized particles consisting of individual particles, as well as nanosized particles. Bulk ceramic samples were fabricated by spark plasma sintering. The optimal sintering parameters were as follows: 2000 °C, 10 MPa, 5 min at a heating rate of 100 °C/min. Studies were conducted to determine the mechanical and thermophysical properties of the bulk HEB sample Текстовый файл AM_Agreement |
| Språk: | engelska |
| Publicerad: |
2026
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| Ämnen: | |
| Länkar: | https://doi.org/10.1016/j.ijrmhm.2025.107417 |
| Materialtyp: | Elektronisk Bokavsnitt |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=682394 |