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Mathematical modeling and flow thermodynamics study of borosilicate glass melt after external addition of Cr2O3.
- Source :
-
Ceramics International . Sep2024:Part A, Vol. 50 Issue 18, p32905-32911. 7p. - Publication Year :
- 2024
-
Abstract
- This article uses a high-temperature sintering imaging instrument to test the flowability of borosilicate glass melt doped with Cr 2 O 3 , and establishes a mathematical model for high-temperature glass melt spreading. Discuss the glass melt from a thermodynamic perspective by combining model interpretation with experimental characterization. The results indicate that the thermodynamic judgment formula for high-temperature flow spreading of borosilicate glass is: Q ≥ ρ [ A 0 exp (− T / k 0) + S 0 ] − M · δ [ A 0 exp (− T / k 0) + S 0 ] 1 / 2 . To improve the high-temperature flow ability of borosilicate glass, it is necessary to increase the spreading activation energy Q. On the other hand, it is necessary to reduce the spreading coefficients A 0 、 k 0 and S 0. As a refractory metal oxide and active oxide, Cr 2 O 3 plays a role in reducing the spreading coefficient of glass systems. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02728842
- Volume :
- 50
- Issue :
- 18
- Database :
- Academic Search Index
- Journal :
- Ceramics International
- Publication Type :
- Academic Journal
- Accession number :
- 178638542
- Full Text :
- https://doi.org/10.1016/j.ceramint.2024.06.101