DEBNÁROVÁ, Stanislava, Pavel SOUČEK, Pavel ONDRAČKA, D.M. HOLZAPFEL, S. MRÁZ, J.M. SCHNEIDER and Petr VAŠINA. Phase formation of powders sputtered from X2BC targets and XC+XB powder mixtures {X = Nb, Ta, W}. Surface and Coatings Technology. Elsevier, 2023, vol. 458, April, p. 1-9. ISSN 0257-8972. Available from: https://dx.doi.org/10.1016/j.surfcoat.2023.129379. |
Other formats:
BibTeX
LaTeX
RIS
@article{2264261, author = {Debnárová, Stanislava and Souček, Pavel and Ondračka, Pavel and Holzapfel, D.M. and Mráz, S. and Schneider, J.M. and Vašina, Petr}, article_number = {April}, doi = {http://dx.doi.org/10.1016/j.surfcoat.2023.129379}, keywords = {Magnetron sputtering; Thermal stability; Phase formation; X2BC; Borides; Carbides}, language = {eng}, issn = {0257-8972}, journal = {Surface and Coatings Technology}, title = {Phase formation of powders sputtered from X2BC targets and XC+XB powder mixtures {X = Nb, Ta, W}}, url = {https://doi.org/10.1016/j.surfcoat.2023.129379}, volume = {458}, year = {2023} }
TY - JOUR ID - 2264261 AU - Debnárová, Stanislava - Souček, Pavel - Ondračka, Pavel - Holzapfel, D.M. - Mráz, S. - Schneider, J.M. - Vašina, Petr PY - 2023 TI - Phase formation of powders sputtered from X2BC targets and XC+XB powder mixtures {X = Nb, Ta, W} JF - Surface and Coatings Technology VL - 458 IS - April SP - 1-9 EP - 1-9 PB - Elsevier SN - 02578972 KW - Magnetron sputtering KW - Thermal stability KW - Phase formation KW - X2BC KW - Borides KW - Carbides UR - https://doi.org/10.1016/j.surfcoat.2023.129379 N2 - In this work, the phase formation and thermal stability of X-B-C powders are investigated, where X = {Nb, Ta, and W}. X-B-C powders are synthesized by pulsed-DC magnetron sputtering and compared to annealed mixtures of commercially available monocarbide and monoboride powders. The phase formation of all powders is investigated before and after annealing to 1500 °C in a protective atmosphere. Before annealing, powders prepared from coatings sputtered from X2BC targets exhibited a nanocomposite structure with small XC grains in the case of the Nb-B-C and Ta-B-C powders. No crystalline phases could be identified in the W-B-C powder. Annealing resulted in a significant increase in crystallite size and the formation of additional phases in all sputtered coating powders. Commercial powder mixtures showed XC and XB phases before and after annealing with no evidence of forming additional phases and minor exothermic reactions were observed by DSC measurements, which were linked to grain growth. No formation of the X2BC phases was observed. This can be explained by the energetically favorable binary XC and XB phases over the ternary X2BC phase in the case of Ta and W. The ternary Nb2BC phase was not observed despite being energetically favorable over binary phases, likely due to kinetic limitations. ER -
DEBNÁROVÁ, Stanislava, Pavel SOUČEK, Pavel ONDRAČKA, D.M. HOLZAPFEL, S. MRÁZ, J.M. SCHNEIDER and Petr VAŠINA. Phase formation of powders sputtered from X2BC targets and XC+XB powder mixtures $\{$X = Nb, Ta, W$\}$. \textit{Surface and Coatings Technology}. Elsevier, 2023, vol.~458, April, p.~1-9. ISSN~0257-8972. Available from: https://dx.doi.org/10.1016/j.surfcoat.2023.129379.
|