KLIMASHIN, Fedor F., Nikola KOUTNÁ, Holger EUCHNER, David HOLEC and Paul H. MAYRHOFER. The impact of nitrogen content and vacancies on structure and mechanical properties of Mo-N thin films. Journal of Applied Physics. Melville: AMER INST PHYSICS, 2016, vol. 120, No 18, p. "nestrankovano", 10 pp. ISSN 0021-8979. Available from: https://dx.doi.org/10.1063/1.4966664.
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Basic information
Original name The impact of nitrogen content and vacancies on structure and mechanical properties of Mo-N thin films
Authors KLIMASHIN, Fedor F. (643 Russian Federation), Nikola KOUTNÁ (203 Czech Republic, belonging to the institution), Holger EUCHNER (276 Germany), David HOLEC (203 Czech Republic) and Paul H. MAYRHOFER (40 Austria).
Edition Journal of Applied Physics, Melville, AMER INST PHYSICS, 2016, 0021-8979.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10302 Condensed matter physics
Country of publisher United States of America
Confidentiality degree is not subject to a state or trade secret
WWW Full Text
Impact factor Impact factor: 2.068
RIV identification code RIV/00216224:14310/16:00092633
Organization unit Faculty of Science
Doi http://dx.doi.org/10.1063/1.4966664
UT WoS 000388734700023
Keywords in English molybdenum nitride; PVD; vacancies
Tags AKR, rivok
Tags International impact, Reviewed
Changed by Changed by: Mgr. Marie Šípková, DiS., učo 437722. Changed: 19/12/2019 15:45.
Abstract
Based on a combined computational and experimental study, we show that besides the thermodynamically stable beta-MoN0.5 and delta(2)-MoN phases, also metastable gamma-MoNx and its ordered relative gamma'-MoNx can be synthesized by physical vapor deposition. The formation of the NaCl-based gamma-MoNx phase is favored for nitrogen concentrations between 23 and 34 at.% (i.e., x = 0.30-0.53). Higher nitrogen contents (close to the 3:2 stoichiometry, hence, MoN0.67) favor the ordering of the vacancies at the nitrogen sublattice (hence, gamma'-MoNx). The highest hardness of similar to 33 GPa is obtained for single-phase cubic-structured gamma-MoN0.53 coatings, whereas the ordered gamma'-MoN0.67 coatings are slightly softer with a hardness of similar to 28 GPa.
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