In situ observation of Li2O-Al2O3-SiO2 glass crystallization process and kinetics analysis
文献类型：期刊论文
| 作者 | Li, HD; Yang, LP; Cao, CC; Tao, Y; Zhong, Q; Xu, ZJ; Luo, CY; Wang, WB |
| 刊名 | JOURNAL OF CRYSTAL GROWTH
 |
| 出版日期 | 2020-10-01 |
| ISSN号 | 0022-0248 |
| DOI | 10.1016/j.jcrysgro.2020.125816 |
| 文献子类 | Article |
| 英文摘要 | In this work, we have observed the crystallization process of Li2O-Al2O3-SiO2 glass using a high-temperature confocal laser scanning microscope and studied its crystallization kinetics with differential thermal analysis. The value of activation energy has been calculated out using Kissinger and Flynn-Wall-Ozawa methods. The results show that LiAlSi3O8 crystal particles precipitate at 850 degrees C, and then gradually grow to 75 um with the irregular hexagonal structure until 980 degrees C. The activation energy of two exothermal peaks through Kissinger method is 121.78 +/- 13.42 and 189.74 +/- 7.76 kJ/mol. Glass transition and crystallization both have remarkable kinetics effects, and kinetic crystallization parameter, Avrami index (n), indicates that crystallization mechanism of two exothermal peaks corresponds to one-dimensional and surface crystallization, respectively. |
| WOS关键词 | CERAMICS ; MICROSTRUCTURE ; PYROLYSIS |
| WOS研究方向 | Crystallography ; Materials Science ; Physics |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.sic.ac.cn/handle/331005/27719]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Li, HD,Yang, LP,Cao, CC,et al. In situ observation of Li2O-Al2O3-SiO2 glass crystallization process and kinetics analysis[J]. JOURNAL OF CRYSTAL GROWTH,2020. |
| APA | Li, HD.,Yang, LP.,Cao, CC.,Tao, Y.,Zhong, Q.,...&Wang, WB.(2020).In situ observation of Li2O-Al2O3-SiO2 glass crystallization process and kinetics analysis.JOURNAL OF CRYSTAL GROWTH. |
| MLA | Li, HD,et al."In situ observation of Li2O-Al2O3-SiO2 glass crystallization process and kinetics analysis".JOURNAL OF CRYSTAL GROWTH (2020). |
入库方式： OAI收割
来源：上海硅酸盐研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。