Microstructure and properties of MgAl2O4 transparent ceramics fabricated by hot isostatic pressing
文献类型：期刊论文
| 作者 | Liu, Q; Jing, YQ; Su, S; Li, XY; Liu, X; Feng, YG; Chen, XP; Li, J |
| 刊名 | OPTICAL MATERIALS
 |
| 出版日期 | 2020-06-01 |
| ISSN号 | 0925-3467 |
| DOI | 10.1016/j.optmat.2020.109938 |
| 文献子类 | Article |
| 英文摘要 | Transparent magnesium aluminate spinet (MgAl2O4) ceramics were successfully fabricated by presintering in air and hot isostatic pressing (HIP) with commercial spinet and calcium oxide powders as raw materials. Due to the liquid phase formation of calcium aluminate in the presintering process, small amount of CaO (0.1 wt%) is found to be very effective for the densification of the ceramics. The influence of presintering temperature on the microstructure, densification process, optical quality and mechanical properties of MgAl2O4 ceramics were investigated. It is found that the relative density of presintered MgAl2O4 ceramics changes from 86.3% to 99.4% when the presintering temperature increases from 1450 degrees C to 1550 degrees C. The average grain size of MgAl2O4 ceramics increases from 0.7 mu m to 4.5 mu m with the increase of presintering temperature from 1450 to 1650 degrees C. The transparent MgAl2O4 ceramic sample presintered at 1525 degrees C for 3 h and HIP post-treated at 1600 degrees C for 3 h shows high in-line transmittances of 86.3% at 1100 nm and 82.5% at 600 nm, the average grain size of 1.5 mu m, the high flexural strength of 281 +/- 16 MPa and hardness of 13.23 +/- 0.07 GPa. |
| WOS关键词 | MAGNESIUM-ALUMINATE SPINEL ; PLASMA SINTERING SPS ; OPTICAL-PROPERTIES ; FRACTURE-TOUGHNESS ; QUALITY ; PERFORMANCE ; NANOPOWDERS |
| WOS研究方向 | Materials Science ; Optics |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.sic.ac.cn/handle/331005/28015]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Liu, Q,Jing, YQ,Su, S,et al. Microstructure and properties of MgAl2O4 transparent ceramics fabricated by hot isostatic pressing[J]. OPTICAL MATERIALS,2020. |
| APA | Liu, Q.,Jing, YQ.,Su, S.,Li, XY.,Liu, X.,...&Li, J.(2020).Microstructure and properties of MgAl2O4 transparent ceramics fabricated by hot isostatic pressing.OPTICAL MATERIALS. |
| MLA | Liu, Q,et al."Microstructure and properties of MgAl2O4 transparent ceramics fabricated by hot isostatic pressing".OPTICAL MATERIALS (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。