Effect of Y2O3 addition on the oxidation resistance of TiN/Ni composites applied for intermediate temperature solid oxide fuel cell interconnects
文献类型：期刊论文
| 作者 | Duan, H; Liu, Y; Zhang, H; Huang, ZR |
| 刊名 | MATERIALS CHARACTERIZATION
 |
| 出版日期 | 2020-08-01 |
| ISSN号 | 1044-5803 |
| DOI | 10.1016/j.matchar.2020.110461 |
| 文献子类 | Article |
| 英文摘要 | TiN/Ni Composites with high electrical conductivity and suitable thermal expansion coefficient have become potential materials for intermediate temperature solid oxide fuel cells interconnects (IT-SOFCs). The interconnect study is very broad in the current form, which is crucially important to increase fuel- cells power efficiency. In order to study the effect of Y2O3 addition on the oxidation resistance of TiN/Ni composites, composites with low Y2O3 content are fabricated by spark plasma sintering. The results show that by adding minor Y2O3, the average size of TiN particles increases from 1.65 mu m to 2.92 mu m. In addition, adding Y2O3 to the composite can reduce the mass gain (800 degrees C/120 h oxidation) from 4.46 mg.cm(-2) to 2.97 mg.cm(-2), which is a result of that Y2O3 promoted the formation of relatively dense NiO and inhibits the formation of loose rutile TiO2. Compared with TiN/Ni composites without Y2O3 , the thermal expansion coefficient of Y2O3-containing composites is reduced from 12.4 x 10(-6) k(-1) to 11.9 x 10(-6) k(-1), and the diffusion depth of O is brought down from 98 mu m to 63 mu m. Meanwhile, composites with Y2O3 exhibits excellent electrical conductivity (1.34 x 10(4) S.cm(-1)), and high flexural strength (716 +/- 14 MPa) after 800 degrees C/120 h oxidation. Therefore, Y2O3 can effectively change the composition and microstructure of the oxide scale and optimize the oxidation resistance of composites. |
| WOS关键词 | FERRITIC STAINLESS-STEEL ; METALLIC INTERCONNECTS ; ELECTRICAL-CONDUCTIVITY ; BASE ALLOYS ; MICROSTRUCTURE ; BEHAVIOR |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE INC |
| 源URL | [http://ir.sic.ac.cn/handle/331005/27864]  |
| 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, H,Liu, Y,Zhang, H,et al. Effect of Y2O3 addition on the oxidation resistance of TiN/Ni composites applied for intermediate temperature solid oxide fuel cell interconnects[J]. MATERIALS CHARACTERIZATION,2020. |
| APA | Duan, H,Liu, Y,Zhang, H,&Huang, ZR.(2020).Effect of Y2O3 addition on the oxidation resistance of TiN/Ni composites applied for intermediate temperature solid oxide fuel cell interconnects.MATERIALS CHARACTERIZATION. |
| MLA | Duan, H,et al."Effect of Y2O3 addition on the oxidation resistance of TiN/Ni composites applied for intermediate temperature solid oxide fuel cell interconnects".MATERIALS CHARACTERIZATION (2020). |
入库方式： OAI收割
来源：上海硅酸盐研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。