Rheological behaviour of CaO-MgO-SiO2-Al2O3-B2O3 system with varying B2O3 content up to 30 wt% at basicity of 0.4
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F24%3A10253971" target="_blank" >RIV/61989100:27360/24:10253971 - isvavai.cz</a>
Alternative codes found
RIV/61989100:27640/24:10253971
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0272884223032856?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0272884223032856?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.ceramint.2023.10.228" target="_blank" >10.1016/j.ceramint.2023.10.228</a>
Alternative languages
Result language
angličtina
Original language name
Rheological behaviour of CaO-MgO-SiO2-Al2O3-B2O3 system with varying B2O3 content up to 30 wt% at basicity of 0.4
Original language description
A comprehensive theoretical and experimental study describing the effect of B2O3 (0-30 wt%) on softening, liquidus, and crystallization temperatures, flow behaviour, and dynamic viscosity of the glass-based oxide system SiO2(64.64-43.21 wt%)-MgO(10 wt%)-CaO(15.86-7.29 wt%)-Al2O3(9.50 wt%)-B2O3 with a constant basicity of 0.4 was carried out. The experimental data was obtained up to 1550 degrees C using a high-temperature rheometer and were supported by the study of the internal structure by means of scanning electron microscopy with energy -dispersive X-ray spectroscopy, X-ray powder diffraction analysis, and Fourier transform infrared spectroscopy. The increasing addition of boron oxide caused a decrease in the start and end softening and liquidus tempera-tures. At 1550 degrees C, the systems exhibited Newtonian behaviour, with a dynamic viscosity increasing exponentially with a decreasing temperature and decreasing with increasing B2O3 content. The amorphous character of the samples and the formation of structural units [BO2O-] and [BO3] and [BO4], confirmed by complementary analyses, led to a decrease in the degree of polymerization of the silicate structure. The theoretical insight into the dependence of dynamic viscosity on the temperature and composition was realized based on molecular dynamics. Furthermore, the prediction of viscosity as a function of temperature (1230-1550 degrees C) and the change in chemical composition (0-30 wt% B2O3) was performed using artificial neural networks.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10403 - Physical chemistry
Result continuities
Project
<a href="/en/project/EF17_049%2F0008399" target="_blank" >EF17_049/0008399: Development of inter-sector cooperation of RMSTC with the application sphere in the field of advanced research and innovations of classical metal materials and technologies using modelling methods</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Ceramics International
ISSN
0272-8842
e-ISSN
1873-3956
Volume of the periodical
50
Issue of the periodical within the volume
1
Country of publishing house
US - UNITED STATES
Number of pages
9
Pages from-to
1389-1397
UT code for WoS article
001130368600001
EID of the result in the Scopus database
2-s2.0-85174697265