| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7900057 | Journal of Non-Crystalline Solids | 2018 | 9 Pages |
Abstract
Glass materials have been applied as insulators during hot extrusion of titanium- and nickel-based alloys to reduce the friction and thermal conduction in the Ugine-Séjournet process. In this research, parallel plate viscometry (PPV) and rotational viscometry (RV) tests were carried out to characterize the viscosity of glass materials such as lead-borate, potassium-lead-silicate, and potassium-sodium-lead-silicate, quantitatively. Herein, we propose a new equation that can be used to predict an extensive range of viscosities from the softening to the melting point. This equation demonstrates more accurate predictions compared with the conventional Vogel-Fulcher-Tamman (VFT), the Avramov&Milchev (AM) and the Mauro-Yue-Ellison-Gupta-Allan (MYEGA) equations.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Youngnam Song, Chanhee Won, Seong-hoon Kang, Howon Lee, Sung-Jun Park, Sung Hyuk Park, Jonghun Yoon,