Intrinsic phase separation in low-temperature quenched arsenic trisulfide glass

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

Intrinsic phase separation in low-temperature quenched arsenic trisulfide glass

Popis výsledku v původním jazyce

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

Název v anglickém jazyce

Intrinsic phase separation in low-temperature quenched arsenic trisulfide glass

Popis výsledku anglicky

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

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CA - Anorganická chemie

OECD FORD obor

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Projekt

<a href="/cs/project/ED4.100%2F11.0251" target="_blank" >ED4.100/11.0251: CEMNAT ? Centrum materiálů a nanotechnologií</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Non-Crystalline Solids

ISSN

0022-3093

e-ISSN

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Svazek periodika

430

Číslo periodika v rámci svazku

Prosinec 2015

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

5

Strana od-do

16-20

Kód UT WoS článku

000365054700003

EID výsledku v databázi Scopus

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