High thermal conductivity silicon nitride ceramics prepared by pressureless sintering with ternary sintering additives
文献类型：期刊论文
| 作者 | Duan, Yusen; Zhang, Jingxian; Li, Xiaoguang; Bai, Hainan; Sajgalik, Pavol; Jiang, Dongliang |
| 刊名 | INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
 |
| 出版日期 | 2019-07-01 |
| 卷号 | 16期号:4页码:1399 |
| 关键词 | pressureless sintering silicon nitride ternary sintering additives thermal conductivity |
| ISSN号 | 1546-542X |
| DOI | 10.1111/ijac.13220 |
| 文献子类 | Article |
| 英文摘要 | Silicon nitride ceramics were pressureless sintered at low temperature using ternary sintering additives (TiO2, MgO and Y2O3), and the effects of sintering aids on thermal conductivity and mechanical properties were studied. TiO2-Y2O3-MgO sintering additives will react with the surface silica present on the silicon nitride particles to form a low melting temperature liquid phase which allows liquid phase sintering to occur and densification of the Si3N4. The highest flexural strength was 791(+/- 20) MPa with 12 wt% additives sintered at 1780 degrees C for 2 hours, comparable to the samples prepared by gas pressure sintering. Fracture toughness of all the specimens was higher than 7.2 MPa center dot m(1/2) as the sintering temperature was increased to 1810 degrees C. Thermal conductivity was improved by prolonging the dwelling time and adopting the annealing process. The highest thermal conductivity of 74 W/(m center dot K) was achieved with 9 wt% sintering additives sintered at 1810 degrees C with 4 hours holding followed by postannealing. |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| 出版者 | WILEY |
| 源URL | [http://ir.sic.ac.cn/handle/331005/27016]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Duan, Yusen,Zhang, Jingxian,Li, Xiaoguang,et al. High thermal conductivity silicon nitride ceramics prepared by pressureless sintering with ternary sintering additives[J]. INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY,2019,16(4):1399. |
| APA | Duan, Yusen,Zhang, Jingxian,Li, Xiaoguang,Bai, Hainan,Sajgalik, Pavol,&Jiang, Dongliang.(2019).High thermal conductivity silicon nitride ceramics prepared by pressureless sintering with ternary sintering additives.INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY,16(4),1399. |
| MLA | Duan, Yusen,et al."High thermal conductivity silicon nitride ceramics prepared by pressureless sintering with ternary sintering additives".INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY 16.4(2019):1399. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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