High tough W-added silicon nitride ceramics
文献类型：期刊论文
| 作者 | Wang, Lujie; Qi, Qian; Zhang, Hui; Yang, Xiao; Liu, Zehua; Ge, Sheng; Peng, Xinglin; Liu, Xuejian; Huang, Zhengren |
| 刊名 | CERAMICS INTERNATIONAL
 |
| 出版日期 | 2019-10-15 |
| 卷号 | 45期号:15页码:19055 |
| 关键词 | Silicon nitride Fracture toughness Tungsten Nitrogen pressure |
| ISSN号 | 0272-8842 |
| DOI | 10.1016/j.ceramint.2019.06.148 |
| 文献子类 | Article |
| 英文摘要 | Silicon nitride ceramics with varying amounts of tungsten were fabricated by sintering with various nitrogen pressure using yttria and alumina as sintering aids. It has been found that the chemical composition of the ceramics is sensitive to the nitrogen pressure during the sintering process, and the adverse interfacial reactions between W and Si3N4 could be perfectly inhibited by altering nitrogen pressure. The weak interfacial bonding strength between the tungsten particle and silicon nitride matrix dramatically promotes crack deflection, branch and grain pullout during the fracture process. As a consequence, with increasing W fraction, the fracture toughness of silicon nitride ceramics increases noticeably. Nevertheless, excessive W fraction lowers the relative density and degrades the performance of the ceramics. The silicon nitride ceramics with high fracture toughness about 11 MPa m(1/2) and high flexural strength about 1 GPa were fabricated. |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.sic.ac.cn/handle/331005/26774]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Wang, Lujie,Qi, Qian,Zhang, Hui,et al. High tough W-added silicon nitride ceramics[J]. CERAMICS INTERNATIONAL,2019,45(15):19055. |
| APA | Wang, Lujie.,Qi, Qian.,Zhang, Hui.,Yang, Xiao.,Liu, Zehua.,...&Huang, Zhengren.(2019).High tough W-added silicon nitride ceramics.CERAMICS INTERNATIONAL,45(15),19055. |
| MLA | Wang, Lujie,et al."High tough W-added silicon nitride ceramics".CERAMICS INTERNATIONAL 45.15(2019):19055. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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