Regulated color-changing metallic glasses

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F44555601%3A13520%2F21%3A43896248" target="_blank" >RIV/44555601:13520/21:43896248 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.jallcom.2021.160139" target="_blank" >https://doi.org/10.1016/j.jallcom.2021.160139</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jallcom.2021.160139" target="_blank" >10.1016/j.jallcom.2021.160139</a>

Result language
angličtina
Original language name
Regulated color-changing metallic glasses
Original language description
A new type of color-changing metallic glasses is discovered: the color can change continuously and spontaneously under ambient conditions. The colors are created mostly by the light interference in the surface metallic-oxide layer and partially by the optical bandgap energy of the formed yttrium-doped cerium oxide. Although metal oxidation is a natural consequence for most metals, this series of yttrium-doped and cerium-based metallic glasses are special because i) the oxidation is continuous, allowing color-changing; ii) the oxide layer is uniform in thickness avoiding stain and corrosion; and iii) the colors can change as fast as in days. The color-changing functionality is greatly connected to the oxygen affinity of the cerium constituent, the glassy structure devoid of grain boundaries, and the regulation from the yttrium dopant. This work not only demonstrates a new direction for metal oxidation but also points out new applications of metallic glass.
Czech name
—
Czech description
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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
10403 - Physical chemistry

Project
<a href="/en/project/LM2018124" target="_blank" >LM2018124: Nanomaterials and Nanotechnologies for Environment Protection and Sustainable Future</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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