Thermal expansion and structural properties of some (PbO)(x)(ZnO)(35-x)(TeO2)(65) glasses

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F21%3A39918271" target="_blank" >RIV/00216275:25310/21:39918271 - isvavai.cz</a>

Výsledek na webu

<a href="https://link.springer.com/article/10.1007/s42452-021-04476-w" target="_blank" >https://link.springer.com/article/10.1007/s42452-021-04476-w</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s42452-021-04476-w" target="_blank" >10.1007/s42452-021-04476-w</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Thermal expansion and structural properties of some (PbO)(x)(ZnO)(35-x)(TeO2)(65) glasses

Popis výsledku v původním jazyce

The glasses (PbO)(x)(ZnO)(35-x)(TeO2)(65) with 0&lt;x&lt;25 were prepared by conventional melting method. The substitution of ZnO by PbO leads to a decrease in the glass transition temperature (T-g) from 338 to 280 degrees C and an increase in the linear coefficient of thermal expansion (alpha) from 15.8 to 19.2 ppm K-1. A correlation between alpha and T-g has been confirmed by the Lindemann rule. The two prediction methods of the coefficient of thermal expansion (alpha) were compared with experimental values: the simple additivity model and the Mackenzie method. From Raman spectra, it is evident that the substitution of ZnO by PbO leads mainly to the conversion of TeO4 structural units to TeO3 structural units. This conversion leads to network depolymerization.

Název v anglickém jazyce

Thermal expansion and structural properties of some (PbO)(x)(ZnO)(35-x)(TeO2)(65) glasses

Popis výsledku anglicky

The glasses (PbO)(x)(ZnO)(35-x)(TeO2)(65) with 0&lt;x&lt;25 were prepared by conventional melting method. The substitution of ZnO by PbO leads to a decrease in the glass transition temperature (T-g) from 338 to 280 degrees C and an increase in the linear coefficient of thermal expansion (alpha) from 15.8 to 19.2 ppm K-1. A correlation between alpha and T-g has been confirmed by the Lindemann rule. The two prediction methods of the coefficient of thermal expansion (alpha) were compared with experimental values: the simple additivity model and the Mackenzie method. From Raman spectra, it is evident that the substitution of ZnO by PbO leads mainly to the conversion of TeO4 structural units to TeO3 structural units. This conversion leads to network depolymerization.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10402 - Inorganic and nuclear chemistry

Projekt

<a href="/cs/project/GA19-11814S" target="_blank" >GA19-11814S: Přímý zápis laserem do vysoko-indexových skel</a><br>

Návaznosti

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

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

SN Applied Sciences

ISSN

2523-3963

e-ISSN

—

Svazek periodika

3

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

8

Strana od-do

484

Kód UT WoS článku

000631028000010

EID výsledku v databázi Scopus

2-s2.0-85102773440