Oxidation-accelerated crystallization of (GeS2)(y)(Sb2S3)(1-y) chalcogenide glasses

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F17%3A39902697" target="_blank" >RIV/00216275:25310/17:39902697 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.jnoncrysol.2016.11.004" target="_blank" >http://dx.doi.org/10.1016/j.jnoncrysol.2016.11.004</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jnoncrysol.2016.11.004" target="_blank" >10.1016/j.jnoncrysol.2016.11.004</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Oxidation-accelerated crystallization of (GeS2)(y)(Sb2S3)(1-y) chalcogenide glasses

Popis výsledku v původním jazyce

Influence of oxygen presence on the crystallization behavior of (GeS2)(y)(Sb2S3)(1-y) glasses (for y up to 0.3) was studied by differential scanning calorimetry, X-ray diffraction analysis and infrared microscopy - the study was performed in dependence on particle size. The oxygen was found to significantly accelerate crystallization from mechanically induced defects for the (GeS2)(0.1)(Sb2S3)(0.9) composition and to sustain the intensity of crystal formation in case of the (GeS2)(0.2)(Sb2S3)as and (GeS2)(0.3)(Sb2S3)(0.7) compositions. On the other hand, presence of oxygen influenced neither the morphology of the crystallites, nor the actual crystallization model-free and model-based kinetics. Direct microscopic observation confirmed strict surface crystallization for all studied composition. Compositional evolutions of the viscosity data and microscopically determined crystal growth rate curves have shown that it is the exceptionally high crystal growth rate and crystallization tendency (compared to the minor-to-moderate contribution of viscosity itself) that are responsible for the significant influenceability of the (GeS2)(0.1)(Sb2S3)(0.9) crystallization by the presence of oxygen.

Název v anglickém jazyce

Oxidation-accelerated crystallization of (GeS2)(y)(Sb2S3)(1-y) chalcogenide glasses

Popis výsledku anglicky

Influence of oxygen presence on the crystallization behavior of (GeS2)(y)(Sb2S3)(1-y) glasses (for y up to 0.3) was studied by differential scanning calorimetry, X-ray diffraction analysis and infrared microscopy - the study was performed in dependence on particle size. The oxygen was found to significantly accelerate crystallization from mechanically induced defects for the (GeS2)(0.1)(Sb2S3)(0.9) composition and to sustain the intensity of crystal formation in case of the (GeS2)(0.2)(Sb2S3)as and (GeS2)(0.3)(Sb2S3)(0.7) compositions. On the other hand, presence of oxygen influenced neither the morphology of the crystallites, nor the actual crystallization model-free and model-based kinetics. Direct microscopic observation confirmed strict surface crystallization for all studied composition. Compositional evolutions of the viscosity data and microscopically determined crystal growth rate curves have shown that it is the exceptionally high crystal growth rate and crystallization tendency (compared to the minor-to-moderate contribution of viscosity itself) that are responsible for the significant influenceability of the (GeS2)(0.1)(Sb2S3)(0.9) crystallization by the presence of oxygen.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20500 - Materials engineering

Projekt

<a href="/cs/project/GA16-10562S" target="_blank" >GA16-10562S: Viskozita a kinetické jevy ve sklotvorných systémech</a><br>

Návaznosti

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

Rok uplatnění

2017

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

—

Svazek periodika

456

Číslo periodika v rámci svazku

January

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

7

Strana od-do

88-94

Kód UT WoS článku

000390719900014

EID výsledku v databázi Scopus

2-s2.0-85002170866