Structure and properties of the lithium aluminosilicate glasses with yttria addition

2007 ◽  
Vol 22 (2) ◽  
pp. 362-366 ◽  
Author(s):  
Weihong Zheng ◽  
Jinshu Cheng ◽  
Hong Li ◽  
Jian Quan ◽  
Lifen Shi
Keyword(s):  
Structure And Properties ◽  
Lithium Aluminosilicate ◽  
Aluminosilicate Glasses

Structure and properties of low-silica calcium aluminosilicate glasses

2000 ◽  
Vol 274 (1-3) ◽  
pp. 110-114 ◽  
Author(s):  
Laurent Cormier ◽  
Daniel R Neuville ◽  
Georges Calas
Keyword(s):  
Structure And Properties ◽  
Aluminosilicate Glasses ◽  
Calcium Aluminosilicate

Different roles of phosphorus in the nucleation of lithium aluminosilicate glasses

2018 ◽  
Vol 493 ◽  
pp. 48-56 ◽  
Author(s):  
Pauline Glatz ◽  
Monique Comte ◽  
Laurent Cormier ◽  
Lionel Montagne ◽  
Bertrand Doumert ◽  
...  
Keyword(s):  
Lithium Aluminosilicate ◽  
Aluminosilicate Glasses

The Effect of Fluorine on the Viscosity and Crystallization of Lithium Aluminosilicate Glasses

2012 ◽  
Vol 509 ◽  
pp. 346-352
Author(s):  
Wei Hong Zheng ◽  
Yang Dai ◽  
Mo Zhou Lin ◽  
Kun Yang ◽  
Hao Wu
Keyword(s):  
Melting Temperature ◽  
Glass Ceramics ◽  
Fluorine Content ◽  
X Ray Diffraction ◽  
Lithium Aluminosilicate ◽  
X Ray ◽  
Melting Temperatures ◽  
Aluminosilicate Glasses ◽  
Main Crystalline Phase ◽  
Rotation Viscometer

Lithium aluminosilicate glasses have high viscosities, resulting in high melting temperatures and processing temperatures. In this study, F was added to the LAS glasses to reduce the melting temperature and viscosity for float process. The effects of fluorine content on the viscosity and crystallization of the parent glasses were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), differential thermal analysis (DTA) and rotation viscometer. It was found that the addition of F was useful in reducing the melting temperature and viscosity. The main crystalline phase of resulting glass-ceramics was β-spodumene. The activation energy (E) of LAS glasses was decreased from 460.3 KJ/mol to 417.7 KJ/mol with the addition of 2.63 wt% F, which accelerated the crystallization and enhanced the crystallinity of specimens.

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