The Yttria-Alumina Glasses- MD and TD models
Result description
The ab-initio molecular dynamics (MD) calculations of the yttrium - aluminate binary system 23Y2O3?77Al2O3 were performed with help of the Vienna ab-initio simulation package VASP. The thermodynamic model (TD) of glasses of the studied binary system wasconstructed. Both the Y/O and Al/O coordination numbers calculated from the partial pair radial distribution function (PP RDF) obtained for MD simulated melt at the temperature of 2500 K were significantly lower than the corresponding coordination numbers obtained from the TD model. The published neutron diffraction and X-ray diffraction studies give the results close to the results of the present ab-initio MD simulation. The TD model resulted in higher Al/O and Y/O coordination when compared with experimental results.
Keywords
Molecular dynamicsab-initiothermodynamic modelingstructureyttrium-aluminate glass
The result's identifiers
Result code in IS VaVaI
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
The Yttria-Alumina Glasses- MD and TD models
Original language description
The ab-initio molecular dynamics (MD) calculations of the yttrium - aluminate binary system 23Y2O3?77Al2O3 were performed with help of the Vienna ab-initio simulation package VASP. The thermodynamic model (TD) of glasses of the studied binary system wasconstructed. Both the Y/O and Al/O coordination numbers calculated from the partial pair radial distribution function (PP RDF) obtained for MD simulated melt at the temperature of 2500 K were significantly lower than the corresponding coordination numbers obtained from the TD model. The published neutron diffraction and X-ray diffraction studies give the results close to the results of the present ab-initio MD simulation. The TD model resulted in higher Al/O and Y/O coordination when compared with experimental results.
Czech name
Alumino-yttritá skla - MD a TD modely
Czech description
Alumino-yttritá skla - MD a TD modely
Classification
Type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JH - Ceramics, fire-proof materials and glass
OECD FORD branch
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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
2008
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Advanced Materials Research
ISSN
1022-6680
e-ISSN
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Volume of the periodical
39-40
Issue of the periodical within the volume
1
Country of publishing house
CH - SWITZERLAND
Number of pages
4
Pages from-to
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UT code for WoS article
000257175200020
EID of the result in the Scopus database
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Basic information
Result type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP
JH - Ceramics, fire-proof materials and glass
Year of implementation
2008