Structure and properties of mixed sodium-lead borophosphate glasses

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F05%3A00002865" target="_blank" >RIV/00216275:25310/05:00002865 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Structure and properties of mixed sodium-lead borophosphate glasses

Original language description

Mixed sodium-lead borophosphate glasses were prepared in two compositional series xNa2O-(50-x)PbO-10B2O3-40P2O5 and xNa2O-(50-x)PbO-20B2O3-30P2O5 with x = 0, 10, 20, 30, 40 and 50 mol% Na2O. Their density decreases and molar volume slightly increases with increasing Na2O content. Chemical durability steeply decreases for glasses containing 40-50 mol% Na2O, whereas glass transition temperatures reveals a minimum at the glasses with 30-40 mol% Na2O. The 31P MAS NMR and Raman spectra of the first series show that with increasing Na2O content the ratio of structural units Q2/Q1 slowly increases and the Q2 phosphate units and BO4 units prevail in the structure of these glasses. In the second series of glasses Q1 diphosphate units together with BO4 and smallnumber of BO3 units form structural network of glasses. The replacement of PbO by Na2O results in higher ionicity of bonding interactions between compensating cations and the anionic network. Lower cation field strength of Na+ ions resul

Czech name

Struktura a vlastnosti sodno-olovnatých borofosfátových skel.

Czech description

Byla studována struktura a vlastnosti borofosfátových skel připravených v kompozičních řadách xNa2O-(50-x)PbO-10B2O3-40P2O5 a xNa2O-(50-x)PbO-20B2O3-30P2O5 (x = 0, 10, 20, 30, 40 and 50 mol% Na2O).

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JH - Ceramics, fire-proof materials and glass

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2005

Confidentiality

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

Name of the periodical

Journal of Non-Crystalline Solids

ISSN

0022-3093

e-ISSN

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Volume of the periodical

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Issue of the periodical within the volume

351

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

7

Pages from-to

1039-1045

UT code for WoS article

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EID of the result in the Scopus database

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