Rheological properties of borosilicate glasses and melts

• Published in: Glass and ceramics Vol. 70; no. 5-6; pp. 208 - 211
• Main Authors: Levitskii, I. A., Papko, L. F., Dyadenko, M. V.
• Format: Journal Article
• Language: English
• Published: Boston Springer US 01-09-2013; Springer; Springer Nature B.V
• Subjects: Boron; Building materials; Ceramics; Characterization and Evaluation of Materials; Chemistry and Materials Science; Composites; Equipment and supplies; Fiber optics; Glass; Materials Science; Natural Materials; Toy industry; optical fiber; borosilicate glass; viscosity; index of refraction; linear thermal expansion coefficient
• ISSN: 0361-7610; 1573-8515
• DOI: 10.1007/s10717-013-9544-3

The effect of concentration and structural factors on the character of the temperature dependence of the viscosity of glasses in the systems K
2
O–B
2
O
3
–SiO
2
and Na
2
O–B
2
O
3
–SiO
2
in the range 10
9
– 10
4
Pa ⋅ sec is determined. It is shown that the effect of boron and potassium oxides on the temperature dependence of the viscosity near the transition from the liquid into the plastic state is complex.