Viscosity of transient glass-forming melt and its relation to foaming during batch-to-glass conversion

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985891%3A_____%2F24%3A00586153" target="_blank" >RIV/67985891:_____/24:00586153 - isvavai.cz</a>

Alternative codes found

RIV/60461373:22310/24:43930978

Result on the web

<a href="https://doi.org/10.1016/j.matlet.2024.136284" target="_blank" >https://doi.org/10.1016/j.matlet.2024.136284</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.matlet.2024.136284" target="_blank" >10.1016/j.matlet.2024.136284</a>

Result language

angličtina

Original language name

Viscosity of transient glass-forming melt and its relation to foaming during batch-to-glass conversion

Original language description

Primary foam, which affects the heat transfer into the glass batch and the final glass quality, occurs when a sufficient quantity of transient glass-forming melt evolves with viscosity low enough to close the open porosity of the reacting glass batch. To better understand how the fraction of transient melt and its viscosity affect the primary foam temperature range, we determined, with x-ray diffraction, the fraction and composition of the transient glass-forming melt in a heated waste glass melter feed as a function of temperature. Then we prepared a set of transient melts that occurred within the foaming temperature interval and measured their viscosities with spindle and falling sphere viscometers. The results agree with the Adam-Gibbs and VFT viscosity-composition models, even for transient melt compositions outside of the models' compositional validity range. As silica and other refractory particles dissolved in the predominantly borate transient melt while temperature increased, viscosity increased from the initial value of - 500 Pa s at the onset of foaming (-650 degrees C) to a maximum of 770 Pa s when silica dissolution was almost complete (-700 degrees C). As temperature increased further, transient melt viscosity decreased to - 220 Pa s (-850 degrees C) when the primary foam collapsed.

Czech name

—

Czech description

—

Type

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

CEP classification

—

OECD FORD branch

20504 - Ceramics

Project

<a href="/en/project/LUAUS23062" target="_blank" >LUAUS23062: Experimental and mathematical analysis of primary glass-forming melt properties, gas evolution, and their relation with primary foam production.</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2024

Confidentiality

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

Name of the periodical

Materials Letters

ISSN

0167-577X

e-ISSN

1873-4979

Volume of the periodical

363

Issue of the periodical within the volume

MAY

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

4

Pages from-to

136284

UT code for WoS article

001218965900001

EID of the result in the Scopus database

2-s2.0-85187221954