Extraordinary oxidation behavior of W–Zr thin-film metallic glasses: A route for tailoring functional properties of W–Zr–O films
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F25%3A43975328" target="_blank" >RIV/49777513:23520/25:43975328 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.surfcoat.2025.132074" target="_blank" >https://doi.org/10.1016/j.surfcoat.2025.132074</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.surfcoat.2025.132074" target="_blank" >10.1016/j.surfcoat.2025.132074</a>
Alternative languages
Result language
angličtina
Original language name
Extraordinary oxidation behavior of W–Zr thin-film metallic glasses: A route for tailoring functional properties of W–Zr–O films
Original language description
The oxidation behavior of W–Zr thin-film metallic glasses (TFMGs) with 32, 48 and 61 at.% Zr, prepared by dc magnetron co-sputtering, was comprehensively studied after annealing in synthetic air. The study focuses on the effect of the annealing temperature (up to 600 °C) on the oxidation process, oxygen saturation, structure evolution, and their subsequent impact on electrical, optical and mechanical properties. The findings reveal that controlled oxidation transforms W–Zr TFMGs into amorphous ceramic W–Zr–O films with substoichiometric compositions. This is a consequence of an oxidation process that does not proceed through the formation of a stoichiometric oxide layer on the surface of W–Zr TFMGs, acting as a diffusion barrier against fast oxidation, but leads to a gradual incorporation of oxygen across the film volume due to thermodynamics factors. Higher Zr content accelerates the oxygen incorporation and its depth uniformity in films. As a result, the mechanical properties are significantly enhanced by achieving hardness values of up to 17.5 GPa at approximately 50 % oxygen saturation. Simultaneously, the electrical and optical properties are finely tuned with the resistivity and the extinction coefficient (measured at 550 nm) ranging from 1.7 to 95.7 × 10^−4 Ω·cm and 0.28 to 1.06, respectively.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20506 - Coating and films
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Surface and Coatings Technology
ISSN
0257-8972
e-ISSN
1879-3347
Volume of the periodical
505
Issue of the periodical within the volume
JUN 1 2025
Country of publishing house
CH - SWITZERLAND
Number of pages
9
Pages from-to
nestránkováno
UT code for WoS article
001461525100001
EID of the result in the Scopus database
2-s2.0-105000979233