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http://ipicyt.repositorioinstitucional.mx/jspui/handle/1010/2385| Mechanosynthesis of metastable cubic delta-Ta1-xN | |
| TERESA GARCIA MENDOZA ALFREDO MARTINEZ GARCIA IGNACIO GUADALUPE BECERRIL JUAREZ ERICK LOPEZ VAZQUEZ MIGUEL AVALOS BORJA Mario Valera_Zaragoza Erick Adrián Juárez Arellano | |
| En Embargo | |
| 31-10-2021 | |
| Atribución-NoComercial-SinDerivadas | |
| https://doi.org/10.1016/j.ceramint.2020.06.082 | |
| Cubic δ-ta1−Xn phase High-energy ball-milling Metastable phase Tantalum nitride | |
| "The formation of the cubic δ-Ta1−xN phase by high-energy ball-milling from tantalum and boron nitride (h-BN) is explored. Two different molar ratios Ta:BN, 1:1 and 2:1, were used. X-ray diffraction, scanning electron microscopy, surface area analysis by the Brunauer-Emmett-Teller method, and thermogravimetric analysis were used to characterize the products obtained. In both molar ratios and after a few minutes of milling, the mechanosynthesis of δ-Ta1−xN was observed. Increasing the entropy of the system by introducing vacancies and point defects by the high-energy ball-milling process seems to stabilize the cubic δ-Ta1−xN phase, as previous theoretical studies had reported. The phase obtained depends on the molar ratio used: in the molar ratio 1:1 a non-stoichiometric δ-Ta1−xN phase is obtained, while in the molar ratio 2:1 a stoichiometric δ-TaN phase and secondary phases are obtained. The amorphous boron remains dispersed in the material until the mechanical energy is high enough to trigger the formation of tantalum borides." | |
| Elsevier | |
| 2020 | |
| Artículo | |
| T. Garcia-Mendoza, A. Martinez-Garcia, I.G. Becerril-Juarez, E. Lopez-Vazquez, M. Avalos-Borja, M. Valera-Zaragoza, E.A. Juarez-Arellano, Mechanosynthesis of metastable cubic δ-Ta1−xN, Ceramics International, Volume 46, Issue 14, 2020, Pages 23049-23058, https://doi.org/10.1016/j.ceramint.2020.06.082. | |
| TECNOLOGÍA DE MATERIALES | |
| Versión revisada | |
| submittedVersion - Versión revisada | |
| Aparece en las colecciones: | Publicaciones Científicas Nanociencias y Materiales |