Efficient Synthesis of WB5-x-WB2 Powders with Selectivity for WB5-x Content

Efficient Synthesis of WB5-x-WB2 Powders with Selectivity for WB5-x Content

Bibliographische Detailangaben
Parent link:Inorganic Chemistry
Vol. 61, iss. 18.— 2022.— [P. 6773–6784]
Körperschaften: Национальный исследовательский Томский политехнический университет Инженерная школа энергетики Научно-исследовательский центр "Экоэнергетика 4.0", Национальный исследовательский Томский политехнический университет Инженерная школа энергетики Отделение электроэнергетики и электротехники
Weitere Verfasser: Pak A. Ya. Aleksandr Yakovlevich, Robkovsky D. V. Dmitry, Vasiljeva (Vassilyeva) Yu. Z. Yuliya Zakharovna, Kolobova E. N. Ekaterina Nikolaevna, Filimonenko A. V. Aleksandr Vitaljevich, Kvashnin A. G. Aleksandr
Zusammenfassung:Title screen
We proposed an efficient method toward the synthesis of higher tungsten boride WB5–x in the vacuumless direct current atmospheric arc discharge plasma. The crystal structure of the synthesized samples of boron-rich tungsten boride was determined using computational techniques, showing a two-phase system. The ab initio calculations of the energies of various structures with similar X-ray diffraction (XRD) patterns allowed us to determine the composition of the formed higher tungsten boride. We determined the optimal parameters of synthesis to obtain samples with 61.5% WB5–x by volume. The transmission electron microscopy measurements showed that 90% of the particles have sizes of up to 100 nm, whereas the rest of them may have sizes from 125 to 225 nm. Our study shows the possibility of using the proposed vacuumless method as an efficient and inexpensive way to synthesize superhard WB5–x without employing resource-consuming vacuum techniques.
Режим доступа: по договору с организацией-держателем ресурса
Sprache:Englisch
Veröffentlicht: 2022
Schlagworte:
электронный ресурс
труды учёных ТПУ
синтез
дуговой разряд
борид вольфрама
Online-Zugang:https://doi.org/10.1021/acs.inorgchem.1c03880
Format: Elektronisch Buchkapitel
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=668132

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