New route to improve the fracture toughness and flexural strength of Si3N4 ceramics by adding FeSi2
文献类型：期刊论文
| 作者 | Wang, Lujie1,2; Qi, Qian1; Cai, Ping1; Zhang, Hui1; Yang, Xiao1; Liu, Xuejian1; Jiao, Zheng2; Huang, Zhengren1 |
| 刊名 | SCRIPTA MATERIALIA
 |
| 出版日期 | 2017 |
| 卷号 | 126页码:11-14 |
| 关键词 | Silicon nitride Iron silicide Reinforcing particles beta-Si3N4 seeds |
| 英文摘要 | Silicon nitride (Si3N4) ceramics were pressureless sintered with 02 wt% FeSi2 at 1780 degrees C for 2 h in nitrogen with Al2O3 and Y2O3 as sintering aids and found to have high toughness and strength. During the sintering process, (beta-Si3N4 crystal seeds and Fe5Si3 reinforcing particles were in situ generated by FeSi2. Abnormal growth of Si3N4 grains was promoted by beta-Si3N4 crystal seeds. High thermal expansion coefficient of Fe5Si3 particles induced residual stresses in the ceramics matrix, which deflected the crack. Ultimately, the fracture toughness and flexural strength of Si3N4 ceramics reached 9.8 +/- 0.5 MPa.m(1/2) and 1086 +/- 48 MPa respectively. (C) 2016 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| 研究领域[WOS] | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 关键词[WOS] | SILICON-NITRIDE CERAMICS ; MECHANICAL-PROPERTIES ; BETA-SI3N4 SEEDS ; MICROSTRUCTURE ; COMPOSITE ; IDENTIFICATION ; PHASES ; STEEL ; SIZE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000384776000003 |
| 源URL | [http://ir.sic.ac.cn/handle/331005/22032]  |
| 专题 | 上海硅酸盐研究所_结构陶瓷与复合材料工程研究中心_期刊论文 |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China 2.Shanghai Univ, Coll Environm & Chem Engn, Shanghai 200444, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Lujie,Qi, Qian,Cai, Ping,et al. New route to improve the fracture toughness and flexural strength of Si3N4 ceramics by adding FeSi2[J]. SCRIPTA MATERIALIA,2017,126:11-14. |
| APA | Wang, Lujie.,Qi, Qian.,Cai, Ping.,Zhang, Hui.,Yang, Xiao.,...&Huang, Zhengren.(2017).New route to improve the fracture toughness and flexural strength of Si3N4 ceramics by adding FeSi2.SCRIPTA MATERIALIA,126,11-14. |
| MLA | Wang, Lujie,et al."New route to improve the fracture toughness and flexural strength of Si3N4 ceramics by adding FeSi2".SCRIPTA MATERIALIA 126(2017):11-14. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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