Key melt properties for controlled synthesis of glass beads by aerodynamic levitation coupled to laser heating

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F23%3A43928782" target="_blank" >RIV/60461373:22310/23:43928782 - isvavai.cz</a>

Result on the web

<a href="https://ceramics.onlinelibrary.wiley.com/doi/10.1111/ijag.16627" target="_blank" >https://ceramics.onlinelibrary.wiley.com/doi/10.1111/ijag.16627</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/ijag.16627" target="_blank" >10.1111/ijag.16627</a>

Result language

angličtina

Original language name

Key melt properties for controlled synthesis of glass beads by aerodynamic levitation coupled to laser heating

Original language description

Binary alkali silicate glasses were synthesized as beads by aerodynamic levitation coupled to laser heating to test the applicability of the method to this compositional range. While bubble-free lithium disilicate beads could be easily obtained, sodium and potassium silicates proved more challenging to melt without significant alkali evaporation: the final samples contained bubbles and exhibited compositional drifts compared to the starting stoichiometry, especially at high SiO2 content. The risk of volatilization from the melts was evaluated empirically: the volatility of each oxide component scaled to the ratio between its melting temperature Tm and the Tm of the target composition (revap), while the difference between such ratios (Δevap) provided a qualitative estimation of the risk of differential evaporation. The formulated approach enables to evaluate the suitability of aerodynamic levitation synthesis for a given target glass composition: while low melting temperature and low liquidus viscosity (η &lt; 100 Pa s) represent the primary optimal conditions, more viscous materials can still be prepared without major compositional drifts using a more careful melting procedure, especially if revap and Δevap are minimized. © 2023 The Authors. International Journal of Applied Glass Science published by American Ceramics Society and Wiley Periodicals LLC.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10402 - Inorganic and nuclear chemistry

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2023

Confidentiality

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

Name of the periodical

International Journal of Applied Glass Science

ISSN

2041-1286

e-ISSN

—

Volume of the periodical

14

Issue of the periodical within the volume

3

Country of publishing house

US - UNITED STATES

Number of pages

13

Pages from-to

455-467

UT code for WoS article

000946993500001

EID of the result in the Scopus database

2-s2.0-85150663326