Effect of germanium oxide on the structure and properties of lithium borophosphate glasses

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F13%3A39896360" target="_blank" >RIV/00216275:25310/13:39896360 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S0022309313002834" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0022309313002834</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jnoncrysol.2013.05.009" target="_blank" >10.1016/j.jnoncrysol.2013.05.009</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of germanium oxide on the structure and properties of lithium borophosphate glasses

Popis výsledku v původním jazyce

Lithium borophosphate glasses with addition of germanium oxide were studied along the compositional series (100 - x)[0.5Li(2)O-0.1B(2)O(3)-0.4P(2)O(5)]-xGeO(2), with x = 0-25 mol.%. Their properties (density, glass transition temperature, coefficient ofthermal expansion, chemical durability) were measured and their structure was studied by P-31 and B-11 MAS NMR spectroscopy and Raman spectroscopy. The addition of GeO2 to the parent borophosphate glass results in an increase of their glass transition temperature, while their chemical durability only slightly decreases. P-31 MAS NMR and Raman spectra reflect the depolymerization of phosphate chains by the incorporation of GeOn polyhedra. B-11 MAS NMR spectra reveal the formation of mixed structural units B(OP)(3)(OGe) in the borophosphate glasses and the decomposition of B-11 MAS NMR spectra brings quantitative data on the number of BO3 and B(OP)(3)(OGe) structural units. A small amount of BO3 trigonal units is formed in the glasses as

Název v anglickém jazyce

Effect of germanium oxide on the structure and properties of lithium borophosphate glasses

Popis výsledku anglicky

Lithium borophosphate glasses with addition of germanium oxide were studied along the compositional series (100 - x)[0.5Li(2)O-0.1B(2)O(3)-0.4P(2)O(5)]-xGeO(2), with x = 0-25 mol.%. Their properties (density, glass transition temperature, coefficient ofthermal expansion, chemical durability) were measured and their structure was studied by P-31 and B-11 MAS NMR spectroscopy and Raman spectroscopy. The addition of GeO2 to the parent borophosphate glass results in an increase of their glass transition temperature, while their chemical durability only slightly decreases. P-31 MAS NMR and Raman spectra reflect the depolymerization of phosphate chains by the incorporation of GeOn polyhedra. B-11 MAS NMR spectra reveal the formation of mixed structural units B(OP)(3)(OGe) in the borophosphate glasses and the decomposition of B-11 MAS NMR spectra brings quantitative data on the number of BO3 and B(OP)(3)(OGe) structural units. A small amount of BO3 trigonal units is formed in the glasses as

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/GA13-00355S" target="_blank" >GA13-00355S: Vícesložková fosforečnanová a borofosforečnanová skla</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

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

375

Číslo periodika v rámci svazku

SEP 1 2013

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

6

Strana od-do

1-6

Kód UT WoS článku

000322297700001

EID výsledku v databázi Scopus

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