| Scratch hardness of rare-earth substituted calcium aluminosilicate glasses | |
She, Jiangbo1,2 ; Sawamura, Shigeki1,3; Wondraczek, Lothar1
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| 作者部门 | 先进光电与生物材料中心 |
| 2019-03 | |
| 发表期刊 | Journal of Non-Crystalline Solids: X
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| ISSN | 25901591 |
| 卷号 | 1 |
| 产权排序 | 1 |
| 摘要 | We report lateral deformation experiments on rare earth substituted glasses from percalcic CaO-Al2O3-SiO2-Tm2O3. Using instrumented Berkovich indentation with normal loads below 100 mN, the scratch hardness was obtained from the work of lateral deformation per deformed volume in the elastic-plastic regime. The positive effect of rare-earth substitution on normal hardness, Poisson's ratio and Young's modulus was found to extent also to scratch hardness: in 25CaO-15Al2O3-60SiO2, partial replacement of alumina by Tm2O3 leads to an enhancement of the scratch hardness by about 1 GPa per 2 mol% of substitution, reaching the highest values of scratch hardness which have been reported for oxide glasses thus far. The enhancement of scratch hardness is attributed to enhanced cation packing fraction and super-structural cohesion as a result of rare earth substitution. The previously reported linear correlation between scratch hardness and bulk modulus is confirmed. © 2019 The Authors |
| DOI | 10.1016/j.nocx.2019.100010 |
| 收录类别 | EI |
| 语种 | 英语 |
| 出版者 | Elsevier B.V. |
| EI入藏号 | 20191006599969 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.opt.ac.cn/handle/181661/31312 |
| 专题 | 光子功能材料与器件研究室 |
| 通讯作者 | Wondraczek, Lothar |
| 作者单位 | 1.Otto Schott Institute of Materials Research, Friedrich Schiller University Jena, Fraunhoferstraße 6, Jena; D-07743, Germany; 2.State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Science (CAS), Xi'an; 710119, China; 3.AGC Inc., 1150 Hazawa-cho, Kanagawa-ku, Yokohama-shi; Kanagawa; 221-8755, Japan |
| 推荐引用方式 GB/T 7714 | She, Jiangbo,Sawamura, Shigeki,Wondraczek, Lothar. Scratch hardness of rare-earth substituted calcium aluminosilicate glasses[J]. Journal of Non-Crystalline Solids: X,2019,1. |
| APA | She, Jiangbo,Sawamura, Shigeki,&Wondraczek, Lothar.(2019).Scratch hardness of rare-earth substituted calcium aluminosilicate glasses.Journal of Non-Crystalline Solids: X,1. |
| MLA | She, Jiangbo,et al."Scratch hardness of rare-earth substituted calcium aluminosilicate glasses".Journal of Non-Crystalline Solids: X 1(2019). |
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