$Synthesis of high-entropy diboride TiZrNbHfTaB2 by vacuum-free direct current arc plasma method; International Journal of Refractory Metals and Hard Materials; Vol. 134$

Synthesis of high-entropy diboride TiZrNbHfTaB2 by vacuum-free direct current arc plasma method; International Journal of Refractory Metals and Hard Materials; Vol. 134

Dettagli Bibliografici
Parent link:	International Journal of Refractory Metals and Hard Materials.— .— Amsterdam: Elsevier Science Publishing Company Inc. Vol. 134.— 2026.— Article number 107417, 7 p.
Altri autori:	Pak A. Ya. Aleksandr Yakovlevich, Povalyaev P. V. Pavel Vadimovich, Vlasov A, V. Aleksey Vladimirovich, Gerasimov R. D. Roman Dmitrievich, Bolatova Zh. S. Zhanar Sanatovna, Svinukhova A. A. Arina Andreevna, Spodina A. V. Anastasiya Vyacheslavovna, Vasiljeva (Vassilyeva) Yu. Z. Yuliya Zakharovna
Riassunto:	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
Lingua:	inglese
Pubblicazione:	2026
Soggetti:	High-entropy diboride Arc plasma Direct current Self-shielding effect электронный ресурс труды учёных ТПУ
Accesso online:	https://doi.org/10.1016/j.ijrmhm.2025.107417
Natura:	Elettronico Capitolo di libro
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=682394

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