Effects of Al2O3 on the Structure and Properties of Calcium-Magnesium-Silicate Glass Fiber
| Periodical | Advanced Materials Research (Volumes 450 - 451) |
|---|---|
| Main Theme | Trends in Building Materials Research |
| Edited by | Jianjun Zheng, Xiuli Du, Weiming Yan, Yue Li and Jianwei Zhang |
| Pages | 42-45 |
| DOI | 10.4028/www.scientific.net/AMR.450-451.42 |
| Citation | Hao Liu et al., 2012, Advanced Materials Research, 450-451, 42 |
| Online since | January, 2012 |
| Authors | Hao Liu, Xi Tang Wang, Zhou Fu Wang, Bao Guo Zhang |
| Keywords | Crystallization, Dissolution, Glass Fiber |
| Price | US$ 28,- |
Calcium-magnesium-silicate glass fiber is a kind of candidate materials for aluminosilicate ceramic fiber in high temperature resistant field. However, the large thermal shrinkage limits its rapid development and industrial application in high temperature insulation field. It has been known that the shrinkage under high temperatures is mainly affected by the structure and crystallization mechanisms of glass fibers. Thus, Al2O3 was chosen as additive in the chemical composition of glass fiber to investigate the glassy network structure, crystallization and dissolution properties of calcium-magnesium-silicate glass fiber by DTA, XRD and ICP-AES techniques. The results show that with the addition of Al2O3, the glassy network structure was strengthened and the precipitation of crystals was inhibited for heat-treated fibers. As for the dissolution properties in physiological fluids, though the weight losses, changes of pH values and leached ions concentration lowered slightly with the addition of Al2O3 for the intensified network structure, fibers still present high dissolution rates.
