A new strengthening theory for improving the fracture strength of lithium disilicate glass-ceramics by introducing Rb or Cs ions
文献类型：期刊论文
| 作者 | Shan, Zhengjie; Liu, Jingxiao; Shi, Fei; Liu, Suhua; Yu, Ling; Wu, Chengtie1; Wang, Chengyu; Liu, Tianshuang2 |
| 刊名 | JOURNAL OF NON-CRYSTALLINE SOLIDS
 |
| 出版日期 | 2018 |
| 卷号 | 481页码:479 |
| 关键词 | Glass-ceramics Lithium disilicate Dental materials Fracture strength Strengthening theory |
| ISSN号 | 0022-3093 |
| DOI | 10.1016/j.jnoncrysol.2017.11.038 |
| 英文摘要 | The lithium disilicate (LD) glass-ceramics with the SiO2-Li2O-R2O-Al2O3-P2O5-CeO2 system were prepared by adding R2O (R = K, Rb, Cs) as modifier. The effects of R2O addition on the crystallization behavior, microstructure and fracture strength of the LD glass-ceramics were investigated by differential thermal analysis (DTA), X-ray diffraction (XRD) and scanning electron microscopy (SEM) etc. The results indicate that the fracture strength of LD glass-ceramics could be improved greatly by introducing Rb2O or Cs2O instead of K2O, therein, introducing Rb2O instead of K2O improved the fracture strength by 26% and Cs2O substituting K2O improved the fracture strength by 37%. The crystallization activation energy of different crystal phase was calculated. It was found that the lower the crystallization activation energy of lithium disilicate is, the higher the fracture strength of LD glass-ceramic achieves. Based on the results, a new chemical strengthening theory of LD glass-ceramic has been proposed, which is of great significance for developing ID dental restorative materials and other functional glasses. |
| 学科主题 | Materials Science, Ceramics ; Materials Science, Multidisciplinary |
| WOS记录号 | WOS:000423646200065 |
| 出版者 | ELSEVIER SCIENCE BV |
| 资助机构 | This work is supported by the Opening Project of State Key Laboratory of High Performance Ceramics and Superfine Microstructure (SKL201514SIC). ; This work is supported by the Opening Project of State Key Laboratory of High Performance Ceramics and Superfine Microstructure (SKL201514SIC). |
| 源URL | [http://ir.sic.ac.cn/handle/331005/24515]  |
| 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,Shi, Fei,et al. A new strengthening theory for improving the fracture strength of lithium disilicate glass-ceramics by introducing Rb or Cs ions[J]. JOURNAL OF NON-CRYSTALLINE SOLIDS,2018,481:479, 485. |
| APA | Shan, Zhengjie.,Liu, Jingxiao.,Shi, Fei.,Liu, Suhua.,Yu, Ling.,...&Liu, Tianshuang.(2018).A new strengthening theory for improving the fracture strength of lithium disilicate glass-ceramics by introducing Rb or Cs ions.JOURNAL OF NON-CRYSTALLINE SOLIDS,481,479. |
| MLA | Shan, Zhengjie,et al."A new strengthening theory for improving the fracture strength of lithium disilicate glass-ceramics by introducing Rb or Cs ions".JOURNAL OF NON-CRYSTALLINE SOLIDS 481(2018):479. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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