Intrinsic phase separation in low-temperature quenched arsenic trisulfide glass

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F15%3A39901038" target="_blank" >RIV/00216275:25310/15:39901038 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.jnoncrysol.2015.09.019" target="_blank" >http://dx.doi.org/10.1016/j.jnoncrysol.2015.09.019</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jnoncrysol.2015.09.019" target="_blank" >10.1016/j.jnoncrysol.2015.09.019</a>

Result language
angličtina
Original language name
Intrinsic phase separation in low-temperature quenched arsenic trisulfide glass
Original language description
The nature of intrinsic phase separation initiated under different homogenization routes is studied in arsenic trisulfide As2S3 glass using Raman scattering spectroscopy. It is shown that As2S3 glass prepared within conventional melt-quenching route is subjected to essential phase separation dependent on the homogenization of elemental constituents sealed in evacuated ampoules. Under condition of low-temperature homogenization at 450-550 degrees C, chemical interaction due to limited solubility of liquid S in solid As results in structurally intrinsic As- and S-rich phases with high content of homoatomic As-As and S-S bonds, respectively, which are "wrong" from the point of As2S3 stoichiometry This process can be essentially facilitated with more rapidheating and greater amount of initial elemental ingredients taken for synthesis. During prolonged homogenization of this intrinsically-decomposed melt (such as lasting 2 days in a rocking furnace), these products are partially separated
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
CA - Inorganic chemistry
OECD FORD branch
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Project
<a href="/en/project/ED4.100%2F11.0251" target="_blank" >ED4.100/11.0251: CEMNAT ? Centre of Materials and Nanotechnologies</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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