| Mechanical properties of directionally solidified Al2O3/Y3Al5O12 eutectic ceramic prepared by optical floating zone technique | |
| Wang, Xu1,4; Tian, Zhilin2; Zhang, Wen1; Zhong, Yujie3; Xian, Quangang4; Zhang, Jian4; Wang, Jingyang4 | |
| Corresponding Author | Zhong, Yujie(yjzhong11s@alum.imr.ac.cn) ; Wang, Jingyang(jywang@imr.ac.cn) |
| 2018-08-01 | |
| Source Publication | JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
 |
| ISSN | 0955-2219 |
| Volume | 38Issue:10Pages:3610-3617 |
| Abstract | Al2O3/Y3Al5O12(YAG) directionally solidified eutectic (DSE) crystal was prepared by optical floating zone technique. A1(2)O(3)/YAG DSE consists of continuous entangled Al2O3 and the YAG forming a three-dimensional networks structure. The volume fraction of porosity is ultra-low (0.013%) and the average equivalent diameters of most pores (> 84%) are smaller than 4 mu m. The Al2O3/YAG DSE shows excellent high-temperature elastic stiffness. The Young's modulus at 1500 degrees C maintains more than 85% of the value at room temperature. Bending strength exhibits excellent retention up to high temperature as well. High-temperature ball indentation testing shows plastic deformation involving dislocations and twinning, which predominantly occur in A1(2)O(3) phase, while the YAG phase is stable. Evaluation on H-v/E index predicts A1(2)O(3)/YAG DSE with moderate capability to accommodate damages. Our results highlight A1(2)O(3)/YAG DSE as excellent high-temperature structural materials. |
| Keyword | Al2O3/YAG DSE Directional solidification Eutectic microstructure Mechanical properties |
| Funding Organization | Research Fund of Equipment Development ; National Natural Science Foundation of China ; Doctoral Starting Fund of Xi'an University of Technology |
| DOI | 10.1016/j.jeurceramsoc.2018.04.017 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Research Fund of Equipment Development[6140759040102] ; Research Fund of Equipment Development[6140923040203] ; National Natural Science Foundation of China[51701156] ; Doctoral Starting Fund of Xi'an University of Technology[101-451116013] |
| WOS Research Area | Materials Science |
| WOS Subject | Materials Science, Ceramics |
| WOS ID | WOS:000432768900026 |
| Publisher | ELSEVIER SCI LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/128131 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Zhong, Yujie; Wang, Jingyang |
| Affiliation | 1.Xian Univ Technol, Sch Mat Sci & Engn, 5 South Jinhua Rd, Xian 710048, Shaanxi, Peoples R China 2.Chinese Univ Hong Kong, Dept Elect Engn, Hong Kong, Hong Kong, Peoples R China 3.Xian Shiyou Univ, Sch Mat Sci & Engn, Xian 710065, Shaanxi, Peoples R China 4.Chinese Acad Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China |
| Recommended Citation GB/T 7714 | Wang, Xu,Tian, Zhilin,Zhang, Wen,et al. Mechanical properties of directionally solidified Al2O3/Y3Al5O12 eutectic ceramic prepared by optical floating zone technique[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,2018,38(10):3610-3617. |
| APA | Wang, Xu.,Tian, Zhilin.,Zhang, Wen.,Zhong, Yujie.,Xian, Quangang.,...&Wang, Jingyang.(2018).Mechanical properties of directionally solidified Al2O3/Y3Al5O12 eutectic ceramic prepared by optical floating zone technique.JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,38(10),3610-3617. |
| MLA | Wang, Xu,et al."Mechanical properties of directionally solidified Al2O3/Y3Al5O12 eutectic ceramic prepared by optical floating zone technique".JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 38.10(2018):3610-3617. |
| 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