Structure and properties of glasses in ZnO-P2O5-TeO2 system

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F11%3A39885422" target="_blank" >RIV/00216275:25310/11:39885422 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.jnoncrysol.2010.12.052" target="_blank" >http://dx.doi.org/10.1016/j.jnoncrysol.2010.12.052</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jnoncrysol.2010.12.052" target="_blank" >10.1016/j.jnoncrysol.2010.12.052</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Structure and properties of glasses in ZnO-P2O5-TeO2 system

Popis výsledku v původním jazyce

Glasses in the ZnO-P2O5-TeO2 system were prepared and studied in compositional series (100-x)[0.5ZnO-0.5P2O5]-xTeO2 (X-series, x=0-60) and 50ZnO-(50-y)P2O5-yTeO2 (Y-series, y=0-40). Their structure was studied by Raman and 31P MAS NMR spectroscopies. Theincorporation of TeOx units into the structural network is associated with the depolymerisation of phosphate chain structure as revealed by both methods. At a high TeO2 content isolated PO4 tetrahedra are formed in the structure of glass series Y, whilediphosphate O3P-O-PO3 groups are present in the structure of the glass series X. In the structure of glass series Y tellurium atoms form predominantly TeO3 trigonal pyramids, whereas in the X glass series TeO4 trigonal bipyramids prevail in the glass structure. The addition of TeO2 to the parent zinc metaphosphate glass results in a decrease of glass transition temperature in both compositional series associated with the replacement of stronger P-O bonds by weaker Te-O bonds.

Název v anglickém jazyce

Structure and properties of glasses in ZnO-P2O5-TeO2 system

Popis výsledku anglicky

Glasses in the ZnO-P2O5-TeO2 system were prepared and studied in compositional series (100-x)[0.5ZnO-0.5P2O5]-xTeO2 (X-series, x=0-60) and 50ZnO-(50-y)P2O5-yTeO2 (Y-series, y=0-40). Their structure was studied by Raman and 31P MAS NMR spectroscopies. Theincorporation of TeOx units into the structural network is associated with the depolymerisation of phosphate chain structure as revealed by both methods. At a high TeO2 content isolated PO4 tetrahedra are formed in the structure of glass series Y, whilediphosphate O3P-O-PO3 groups are present in the structure of the glass series X. In the structure of glass series Y tellurium atoms form predominantly TeO3 trigonal pyramids, whereas in the X glass series TeO4 trigonal bipyramids prevail in the glass structure. The addition of TeO2 to the parent zinc metaphosphate glass results in a decrease of glass transition temperature in both compositional series associated with the replacement of stronger P-O bonds by weaker Te-O bonds.

Druh

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

CEP obor

JH - Keramika, žáruvzdorné materiály a skla

OECD FORD obor

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Projekt

<a href="/cs/project/GAP106%2F10%2F0283" target="_blank" >GAP106/10/0283: Ternární fosfátová skla dotovaná oxidy přechodných kovů pro optoelektronické aplikace</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

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

357

Číslo periodika v rámci svazku

14

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

5

Strana od-do

2648-2652

Kód UT WoS článku

000292663700027

EID výsledku v databázi Scopus

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