Molecular dynamics study of the growth of crystalline ZrO2

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F16%3A43929088" target="_blank" >RIV/49777513:23520/16:43929088 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.surfcoat.2016.07.004" target="_blank" >http://dx.doi.org/10.1016/j.surfcoat.2016.07.004</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.surfcoat.2016.07.004" target="_blank" >10.1016/j.surfcoat.2016.07.004</a>

Result language
angličtina
Original language name
Molecular dynamics study of the growth of crystalline ZrO2
Original language description
Thin films of ZrO2 are of high interest due to a wide range of useful technological properties. Previously, the plasma-assisted preparation of ZrO2 has been described in terms of extrinsic process parameters such as total pressure, oxygen partial pressure or discharge power. In this paper the growth of ZrO2 is studied by atom-by-atom molecular dynamics simulations, focused on intrinsic process parameters such as the energy and energy distribution function of arriving atoms. The results show how do the film densification, crystal nucleation and uninterrupted crystal growth depend not only on the energy delivered into the growing films (i) per fast atom (ion) or (ii) per any atom, but especially (iii) on the fraction of fast atoms in the particle flux and (iv) on the mass of fast atoms (Zr or O). In parallel, there is a clear effect of the temperature on crystal nucleation, contrary to a very weak effect of the temperature on crystal growth. The results facilitate defining new synthesis pathways for ZrO2, and constitute phenomena which may be relevant for other coating materials (isostructural HfO2 at the first place) as well.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JI - Composite materials
OECD FORD branch
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Project
<a href="/en/project/GJ15-00859Y" target="_blank" >GJ15-00859Y: Design of new functional materials, and pathways for their atom-by-atom preparation, using advanced computer modelling</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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