Abstract
The forming process of the flexible ultrathin glasses (UTG) prepared by the redrawing method was numerically simulated using ANSYS Polyflow software. In the forming process by the redrawing method, temperature, viscosity, transverse and longitudinal velocity distribution of the glasses with different compositions were studied. Furthermore, the influence of these factors on the width and thickness of the flexible glass plate was investigated. It is found that the internal and external heat exchange of glass has a dominant influence on the viscosity variation during the UTG forming process, which is inconsistent with the general viscosity-temperature dependence. The glass that first reaches the lower limit of forming viscosity can significantly resist the shrinking effect caused by surface tension, making the glass wider during the forming. If the original glass width remains unchanged, the glass thickness or feeding speed is reduced, wider and thinner flexible glasses can be produced.
Similar content being viewed by others
References
You H, Steckl AJ. Lightweight Electrowetting Display on Ultra-thin Glass Substrate[J]. J. Soc. Inf. Display, 2013, 21(5): 192–197
Li QY, Gong DQ, Cheng XD. Thickness Dependence of Structural and Optical Properties of Chromium Thin Films as an Infrared Reflector for Solar-thermal Conversion Applications[J]. Journal Wuhan University of Technology-Materials Science Edition, 2019, 34: 1 239–1 247
Macrelli G, Varshneya AK, Mauro JC. Ultra-thin Glass as a Substrate for Flexible Photonics[J]. Opt. Mater., 2020, 106: 1–8
Garner S, Glaesemann S, Li XH. Ultra-slim Flexible Glass for Roll-to-roll Electronic Device Fabrication[J]. Appl. Phys. A, 2014, 116: 403–407
Tamagaki H, Ikari Y, Ohba N. Roll-to-roll Sputter Deposition on Flexible Glass Substrates[J]. Surf. Coat. Tech., 2014, 241: 138–14
Lin HJ, Chang WK. Design of a Sheet Forming Apparatus for Overflow Fusion Process by Numerical Simulation[J]. J. Non-Cryst. Solids, 2007, 353: 2 817–2 825
Feulvarch E, Moulin N, Saillard P, et al. 3D Simulation of Glass Forming Process[J]. J. Mater. Process. Technol., 2005, 164–165: 1 197–1 203
Jia YZ, Liu ZZ, WU D, et al. Mechanical Simulation of Foldable AMOLED Panel with a Module Structure [J]. Organic Electronics, 2019, 65: 185–192
Guo ZQ, Yuan J, Tian PJ. Study on Heating Uniformity of Pt-Rh Alloy Bushing for Producing Flexible Glass[J]. Journal Wuhan University of Technology-Materials Science Edition, 2022, 37: 256–260
Myong SY, Jeon LS, Kwon SW. Superstrate Flexible Thin-film Si Solar Cells Using Flexible Glass Substrates[J]. Thin Solid Films, 2014, 550: 705–709
Xiao ZF, Cheng JS, Wu H. Effect of Al2O3/SiO2 Ratio on the Viscosity and Workability of High-alumina Soda-lime-silicate Glasses[J]. J. Chin. Ceram. Soc., 2012, 40(7): 1 000–1 005
Hrma P. Glass Viscosity as a Function of Temperature and Composition: a Model Based on Adam-Gibbs Equation[J]. J. Non-Cryst. Solids, 2008, 354: 3 389–3 399
Funding
Funded by the National Key Research and Development Program of China (No. 2022YFB3603300)
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Liu, B., Yuan, J., Guo, Z. et al. Numerical Simulation of a Viscoelastic Thinning Process for Preparing Flexible Glasses by Redrawing Method. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 38, 65–71 (2023). https://doi.org/10.1007/s11595-023-2668-x
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11595-023-2668-x