Surface strengthening of lithium disilicate glass-ceramic by ion-exchange using Rb, Cs nitrates
文献类型：期刊论文
| 作者 | Shan, Zhengjie; Liu, Jingxiao; Liu, Ming; Shi, Fei; Wu, Chengtie1; Wang, Chengyu; Liu, Tianshuang2 |
| 刊名 | CERAMICS INTERNATIONAL
 |
| 出版日期 | 2018 |
| 卷号 | 44期号:11页码:12466 |
| 关键词 | Strength Hardness Corrosion Glass-ceramics Biomedical applications |
| ISSN号 | 0272-8842 |
| DOI | 10.1016/j.ceramint.2018.04.037 |
| 英文摘要 | In order to further improve the flexural strength of lithium disilicate glass-ceramic, surface strengthening by ion exchange using Rb, Cs nitrates has been studied for the first time. The influences of ion exchange using rubidium and cesium salts on the flexural strength and corrosion resistance have been investigated. It was found that the mechanical properties of the lithium disilicate glass-ceramic could be increased greatly by the ion exchange in rubidium nitrate (RbNO3) salt. After ion exchange for 4 h in RbNO3 salt, the flexural strength and microhardness increased from 169 MPa and 587 kgf mm(-2) (5.75 Gpa) of the original lithium disilicate glass-ceramic to 493 MPa and 654 kgf mm(-2) (6.4 Gpa), respectively. Moreover, the corrosion resistance of the lithium disilicate glass-ceramic was further improved by ion exchange in rubidium and cesium nitrate salts. Furthermore, the maximum thickness of the ion exchange layer using RbNO3 and CsNO3 was only 4.3 mu m and 0.45 mu m respectively. Such a thin exchange layer, which will only require very low Rb+, Cs+ ions exchange amount, indicates that the molten salts of RbNO3 and CsNO3 can be reused for many times. So it is suggested that surface strengthening of lithium disilicate glass-ceramic by ion exchange using Rb, Cs nitrates is cost-efficient and very suitable for the actual production and applications. |
| 学科主题 | Materials Science, Ceramics |
| WOS记录号 | WOS:000436351700069 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | This work is supported by the Opening Project of State Key Laboratory of High Performance Ceramics and Superfine Microstructure (SKL201514SIC), the National Natural Science Foundation of China (No. 51778098), the 2015 Science & Technology Project by the Ministry of Housing and Urban-Rural Development of China (2015-K1-042), and the 2016 Dalian City Construction Science & Technology Project (201612). ; This work is supported by the Opening Project of State Key Laboratory of High Performance Ceramics and Superfine Microstructure (SKL201514SIC), the National Natural Science Foundation of China (No. 51778098), the 2015 Science & Technology Project by the Ministry of Housing and Urban-Rural Development of China (2015-K1-042), and the 2016 Dalian City Construction Science & Technology Project (201612). |
| 源URL | [http://ir.sic.ac.cn/handle/331005/24773]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 作者单位 | 1.Dalian Polytech Univ, Sch Text & Mat Engn, Dalian 116034, Peoples R China 2.Chinese Acad Sci, Shanghai Inst Ceram, Shanghai 20050, Peoples R China 3.Dalian Stomatol Hosp, Dalian 116021, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shan, Zhengjie,Liu, Jingxiao,Liu, Ming,et al. Surface strengthening of lithium disilicate glass-ceramic by ion-exchange using Rb, Cs nitrates[J]. CERAMICS INTERNATIONAL,2018,44(11):12466, 12471. |
| APA | Shan, Zhengjie.,Liu, Jingxiao.,Liu, Ming.,Shi, Fei.,Wu, Chengtie.,...&Liu, Tianshuang.(2018).Surface strengthening of lithium disilicate glass-ceramic by ion-exchange using Rb, Cs nitrates.CERAMICS INTERNATIONAL,44(11),12466. |
| MLA | Shan, Zhengjie,et al."Surface strengthening of lithium disilicate glass-ceramic by ion-exchange using Rb, Cs nitrates".CERAMICS INTERNATIONAL 44.11(2018):12466. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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