| Microstructure evolution and crystallography of directionally solidified Al2O3/Y3Al5O12 eutectic ceramics prepared by the modified Bridgman method | |
| Wang, Xu1; Zhang, Nan1; Zhong, Yujie2; Jiang, Bailing1; Lo, Langhong3; Zhang, Jian3; Wang, Jingyang3 | |
| Corresponding Author | Wang, Xu(xwang@alum.imr.ac.cn) |
| 2019-09-01 | |
| Source Publication | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
 |
| ISSN | 1005-0302 |
| Volume | 35Issue:9Pages:1982-1988 |
| Abstract | Large size, high-density (99.97%) and well-organized Al2O3/Y3Al5O12 (YAG) eutectic ceramics were prepared by the modified Bridgman method. The evolution of the three dimensional microstructure and micropores were investigated. The diameter of the micro-pores and the porosity decreased during directional solidification. The average equivalent diameter of the micro-pores was 2.41 mu m in the well-prepared eutectic ceramics. Most of the pores (98.07%) were smaller than 4 mu m. These data are comparable to those prepared by the optical floating zone method. The as-grown eutectic ceramics were polycrystalline, but the interfaces were well-bonded and there were no amorphous phases in the microstructure. The misfits of the different crystallographic relationships were calculated, and the bottleneck of the single-crystal preparation was identified. These results could provide theoretical guidance for the preparation of large, single-crystal Al2O3/YAG eutectic ceramics by the modified Bridgman method. (C) 2019 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology. |
| Keyword | Al2O3/YAG eutectic ceramics Crystallography Interfaces Bridgman method |
| Funding Organization | National Natural Science Foundation of China ; Equipment Pre-Research Foundation of China ; Doctoral Starting Fund of Xi'an University of Technology |
| DOI | 10.1016/j.jmst.2019.05.018 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[51804252] ; National Natural Science Foundation of China[51701156] ; Equipment Pre-Research Foundation of China[6140759040102] ; Equipment Pre-Research Foundation of China[6140923040203] ; Doctoral Starting Fund of Xi'an University of Technology[101-451116013] |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000475870600021 |
| Publisher | JOURNAL MATER SCI TECHNOL |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/134521 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Wang, Xu |
| Affiliation | 1.Xian Univ Technol, Sch Mat Sci & Engn, Xian 710048, Shaanxi, Peoples R China 2.Xian Shiyou Univ, Sch Mat Sci & Engn, Xian 710065, Shaanxi, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China |
| Recommended Citation GB/T 7714 | Wang, Xu,Zhang, Nan,Zhong, Yujie,et al. Microstructure evolution and crystallography of directionally solidified Al2O3/Y3Al5O12 eutectic ceramics prepared by the modified Bridgman method[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2019,35(9):1982-1988. |
| APA | Wang, Xu.,Zhang, Nan.,Zhong, Yujie.,Jiang, Bailing.,Lo, Langhong.,...&Wang, Jingyang.(2019).Microstructure evolution and crystallography of directionally solidified Al2O3/Y3Al5O12 eutectic ceramics prepared by the modified Bridgman method.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,35(9),1982-1988. |
| MLA | Wang, Xu,et al."Microstructure evolution and crystallography of directionally solidified Al2O3/Y3Al5O12 eutectic ceramics prepared by the modified Bridgman method".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 35.9(2019):1982-1988. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment