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Structure and properties of GeO2 modified borophosphate glasses

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F15%3A39900088" target="_blank" >RIV/00216275:25310/15:39900088 - isvavai.cz</a>

  • Result on the web

    <a href="http://dx.doi.org/10.1166/asem.2015.1683" target="_blank" >http://dx.doi.org/10.1166/asem.2015.1683</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1166/asem.2015.1683" target="_blank" >10.1166/asem.2015.1683</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Structure and properties of GeO2 modified borophosphate glasses

  • Original language description

    Structure, physico-chemical properties and thermal behaviour of GeO2-containing lithium borophosphate glasses in the compositional series (100-x)[0.4Li2O-0.4B2O3-0.2P2O5]-xGeO2 (x = 0-30 mol%) were investigated. According to the Raman spectra and 11B MASNMR spectra, the glass structure consists mostly of BO4 tetrahedra and planar BO3 triangles. P2O5 is incorporated in the structural network mostly in the form of tetrahedral PO4 metaphosphate (Q2) and diphosphate (Q1) units. The ratio of BO4/BO3 and Q2/Q1 structural units remains practically constant with increasing GeO2 content. This suggests that GeO2 formed mainly isolated GeOx units in the structural network. The incorporation of GeO2 the glass structure results only in a small changes of physico-chemical properties. Glass transition temperature, dilatometric softening temperature and chemical durability reveal a maximum, whereas molar volume and thermal expansion coefficient reveal a minimum at the glass with 15 mol% GeO2. DTA stu

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    JH - Ceramics, fire-proof materials and glass

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/GA13-00355S" target="_blank" >GA13-00355S: Multicomponent phosphate and borophosphate glasses</a><br>

  • Continuities

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

Others

  • Publication year

    2015

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    Advanced Science, Engineering and Medicine

  • ISSN

    2164-6627

  • e-ISSN

  • Volume of the periodical

    7

  • Issue of the periodical within the volume

    4

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    5

  • Pages from-to

    "331?335"

  • UT code for WoS article

  • EID of the result in the Scopus database