| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8020470 | Materials Letters | 2014 | 4 Pages |
Abstract
In order to increase the breakdown strength of ferroelectric glass-ceramic, morphological control of tridymite in SrO-BaO-Nb2O5-CaO-SiO2-B2O3 glass-ceramic is achieved by adjustment of annealing temperature. Annealed at 600-650 °C, round tridymite crystal can be obtained using Cr2O3 as the nucleating agent, whereas flowerlike tridymite crystal would be formed after annealing at the temperatures of 700-800 °C. With XRD, SEM and EDS analyses, a crystallization model is used to explain the morphological feature change. Because of more SiO2 keeping as amorphous phase, the breakdown strength of the ferroelectric glass-ceramic with round morphological feature of tridymite crystal can be increased. The results have indicated that the annealing processes have a great impact on the composition of the glass-ceramic hosting tridymite crystal and morphological feature of tridymite.
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Xiaoyan Liu, Yongping Pu, Peikui Wang, Zijing Dong, Zixiong Sun, Yao Hu,