Studium struktury a vlastností skel systému ZnO-Bi2O3-P2O5

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F07%3A00005840" target="_blank" >RIV/00216275:25310/07:00005840 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Study of structure and properties of ZnO-Bi2O3-P2O5 glasses

Popis výsledku v původním jazyce

Glasses of the ternary system ZnO-Bi2O3-P2O5 were prepared and studied in two compositional series 50ZnO-xBi2O3-(50-x)P2O5 and (50-y)ZnO-yBi2O3-50P2O5. Two distinct glass-forming regions were found in the 50ZnO-xBi2O3-(50-x)P2O5 glass series with x = 0-10 and 20-35 mol% Bi2O3. All prepared Bi2O3-containing glasses reveal a high chemical durability. Small additions of Bi2O3 (~5 mol%) improve thermal stability of glasses. All glasses crystallize on heating within the temperature range of 505-583oC. Structural studies by Raman and 31P MAS NMR spectroscopies showed the rapid depolymerisation of phosphate chains within the first region with x = 0-15 and the presence of isolated Q0 phosphate units within the second region with x = 20-35. Raman studies showedthat bismuth is incorporated in the glass structure in BiO6 units and their vibrational bands were observed within the spectral region of 350-700 cm-1. The evolution of properties and the spectroscopic data are both in accordance with a

Název v anglickém jazyce

Study of structure and properties of ZnO-Bi2O3-P2O5 glasses

Popis výsledku anglicky

Glasses of the ternary system ZnO-Bi2O3-P2O5 were prepared and studied in two compositional series 50ZnO-xBi2O3-(50-x)P2O5 and (50-y)ZnO-yBi2O3-50P2O5. Two distinct glass-forming regions were found in the 50ZnO-xBi2O3-(50-x)P2O5 glass series with x = 0-10 and 20-35 mol% Bi2O3. All prepared Bi2O3-containing glasses reveal a high chemical durability. Small additions of Bi2O3 (~5 mol%) improve thermal stability of glasses. All glasses crystallize on heating within the temperature range of 505-583oC. Structural studies by Raman and 31P MAS NMR spectroscopies showed the rapid depolymerisation of phosphate chains within the first region with x = 0-15 and the presence of isolated Q0 phosphate units within the second region with x = 20-35. Raman studies showedthat bismuth is incorporated in the glass structure in BiO6 units and their vibrational bands were observed within the spectral region of 350-700 cm-1. The evolution of properties and the spectroscopic data are both in accordance with a

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/GA104%2F07%2F0315" target="_blank" >GA104/07/0315: Fosfátová a borofosfátová skla dotovaná oxidy těžkých kovů pro optoelektronické a fotonické aplikace.</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2007

Kód důvěrnosti údajů

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

Název periodika

Journal of Materials Science

ISSN

0022-2461

e-ISSN

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Svazek periodika

2007

Číslo periodika v rámci svazku

42

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

7

Strana od-do

8592-8598

Kód UT WoS článku

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EID výsledku v databázi Scopus

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