X-ray tomography of feed-to-glass transition of simulated borosilicate waste glasses

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985891%3A_____%2F17%3A00480538" target="_blank" >RIV/67985891:_____/17:00480538 - isvavai.cz</a>

Alternative codes found

RIV/60461373:22310/17:43914566

Result on the web

<a href="http://dx.doi.org/10.1111/jace.14895" target="_blank" >http://dx.doi.org/10.1111/jace.14895</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/jace.14895" target="_blank" >10.1111/jace.14895</a>

Result language

angličtina

Original language name

X-ray tomography of feed-to-glass transition of simulated borosilicate waste glasses

Original language description

High-level waste feed composition affects the overall melting rate by influencing the chemical, thermophysical, and morphological properties of a cold cap layer that floats on the molten glass where most feed-to-glass reactions occur. Data from X-ray computed tomography imaging of melting pellets comprised of a simulated high-aluminum feed reveal the morphology of bubbles, known as the primary foam, for various feed compositions at temperatures between 600 degrees C and 1040 degrees C. These feeds were formulated to make glasses with viscosities ranging from 0.5 to 9.5Pas at 1150 degrees C, which was accomplished by changing the SiO2/(B2O3+Na2O+Li2O) ratio in the final glass. Pellet dimensions and profile area, average and maximum bubble areas, bubble diameter, and void fraction were evaluated. The feed viscosity strongly affects the onset of the primary foaming and the foam collapse temperature. Despite the decreasing amount of gas-evolving components (Li2CO3, H3BO3, and Na2CO3), as the feed viscosity increases, the measured foam expansion rate does not decrease. This suggests that the primary foaming is not only affected by changes in the primary melt viscosity but also by the compositional reaction kinetic effects. The temperature-dependent foam morphological data will be used to inform cold cap model development for a high-level radioactive waste glass melter.

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

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2017

Confidentiality

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

Name of the periodical

Journal of the American Ceramic Society

ISSN

0002-7820

e-ISSN

—

Volume of the periodical

100

Issue of the periodical within the volume

9

Country of publishing house

US - UNITED STATES

Number of pages

12

Pages from-to

3883-3894

UT code for WoS article

000409281400008

EID of the result in the Scopus database

2-s2.0-85019022647