Densification and microstructure evolution of reactively sintered transparent spinel ceramics
文献类型：期刊论文
| 作者 | Han, Dan1; Zhang, Jian2; Liu, Peng3; Li, Gui; Wang, Shiwei2 |
| 刊名 | CERAMICS INTERNATIONAL
 |
| 出版日期 | 2018 |
| 卷号 | 44期号:10页码:11101 |
| 关键词 | Spinels Reactive sintering Microstructure Densification Optical properties |
| ISSN号 | 0272-8842 |
| DOI | 10.1016/j.ceramint.2018.03.109 |
| 英文摘要 | Reactive sintering is an effective and simple method to prepare transparent spinel ceramics. In this research, transparent MgO center dot nAl(2)0(3) (0.98 >= n >= 2) spinel ceramics were prepared via reactive sintering in air followed by hot isostatic press (HIP), using MgO and gamma-Al2O3 powders as raw materials. The influence of composition on densification and microstructure evolution was systemically investigated. More importantly, the relationship between microstructure of presintered samples and final properties of transparent ceramics was singled out. Thermodynamically stable large pores were easily generated in magnesia-rich and stoichiometric samples after presintering in air, causing severe abnormal grain growth during the HIP treatment and poor optical quality of the resulting samples. The presintering temperature of alumina-rich samples widely varied with composition. No large pores were observed in the presintered sample, which was beneficial for the elimination of residual pores in the following HIP process. Highly transparent spinel ceramics with n = 1.1 and 1.3 were successfully fabricated with the transmittance above 84% even at the short wavelength of 400 nm, close to the theoretical value. |
| 学科主题 | Materials Science, Ceramics |
| WOS记录号 | WOS:000432768200012 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | The authors gratefully acknowledge financial supports from National Key R&D Program of China (No. 2017YFB0310501) and Key Development Program of Chinese Academy of Sciences (No. Y62YZ4140G). ; The authors gratefully acknowledge financial supports from National Key R&D Program of China (No. 2017YFB0310501) and Key Development Program of Chinese Academy of Sciences (No. Y62YZ4140G). |
| 源URL | [http://ir.sic.ac.cn/handle/331005/24843]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Inst Ceram, Key Lab Transparent Optofunct Inorgan Mat, Shanghai 200050, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Surperfine, Shanghai 200050, Peoples R China 4.Jiangsu Normal Univ, Sch Phys & Elect Engn, Xuzhou 221116, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Han, Dan,Zhang, Jian,Liu, Peng,et al. Densification and microstructure evolution of reactively sintered transparent spinel ceramics[J]. CERAMICS INTERNATIONAL,2018,44(10):11101, 11108. |
| APA | Han, Dan,Zhang, Jian,Liu, Peng,Li, Gui,&Wang, Shiwei.(2018).Densification and microstructure evolution of reactively sintered transparent spinel ceramics.CERAMICS INTERNATIONAL,44(10),11101. |
| MLA | Han, Dan,et al."Densification and microstructure evolution of reactively sintered transparent spinel ceramics".CERAMICS INTERNATIONAL 44.10(2018):11101. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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