Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
675962 | Thermochimica Acta | 2006 | 5 Pages |
Abstract
The crystallization and microstructure of Li2O–Al2O3–SiO2 (LAS) glass ceramic with complex nucleating agents (TiO2 + ZrO2 + P2O5 +/or F−) are investigated by differential thermal analysis (DTA), X-ray diffraction (XRD) and scanning electron microscopy (SEM), and the effects of P2O5 and F− on the crystallization of LAS glass are also analyzed. The introduction of both P2O5 and F− promotes the crystallization of LAS glass by decreasing the crystallization temperature and adjusting the crystallization kinetic parameters, allows a direct formation of β-spodumene without the transformation of LiAl(SiO3)2 into β-spodumene and as a result, increases the crystal size and crystallinity of LAS glass ceramic.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Fluid Flow and Transfer Processes
Authors
Xingzhong Guo, Hui Yang, Chen Han, Fangfang Song,