The phase composition and microstructural evolution of a novel MgO-C-Al-Si refractory used in bottom-blowing elements at high temperatures in flowing nitrogen
文献类型：期刊论文
| 作者 | Yan, Mingwei2; Zhang, Jiayu2; Yang, Yumin1; Liu, Kaiqi2; Sun, Guangchao2 |
| 刊名 | JOURNAL OF ASIAN CERAMIC SOCIETIES
 |
| 出版日期 | 2021-05-01 |
| 页码 | 12 |
| ISSN号 | 2187-0764 |
| 关键词 | MgO-C-Al-Si bottom-blowing element phase composition microstructure nitrogen |
| DOI | 10.1080/21870764.2021.1917113 |
| 英文摘要 | A novel MgO-C-Al-Si refractory with low carbon content used in bottom-blowing elements was prepared, and its phase composition and microstructural evolution were investigated by XRD, SEM and EDS after being treated at 1200-1600 degrees C in flowing nitrogen. Results show that the samples are composed of MgO, Al4C3, SiC, Al4SiC4, MgAl2O4, Mg3Al2N4 and Al2O3 at 1200-1400 degrees C, while the samples are composed of MgO, Al4C3, SiC, Al4SiC4, Al4Si2C5, MgAl2O4, Mg3Al2N4 and Al2O3 at 1500-1600 degrees C. Al and Si present gradient reactivity at high temperatures and Al has priority over Si to react with MgO, forming MgAl2O4. Based on the microstructure analysis, we find that the higher the temperatures are, the more abundant the products. Al(g), Al2O(g), SiO(g), Mg(g) and CO(g), as the gas-gas reaction substances, react to form many of Al4SiC4 flakes containing Mg, O and N within pores or gaps of the refractory, along with trace amounts of SiC whiskers and MgAl2O4 spinel whiskers. In addition, the surface morphology of the magnesia aggregates is modified by the MgAl2O4 spinels and Al4SiC4 flakes, owing to the synergistic effect of Al and Si. Further, some physical properties are also characterized. |
| WOS关键词 | MECHANICAL-PROPERTIES ; CARBON ; BEHAVIOR ; RESISTANCE ; OXIDATION ; ADDITIVES |
| 资助项目 | Key Research Program of Nanjing IPE Institute of Green Manufacturing Industry (China)[E0010717] |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| 出版者 | TAYLOR & FRANCIS LTD |
| WOS记录号 | WOS:000646131800001 |
| 资助机构 | Key Research Program of Nanjing IPE Institute of Green Manufacturing Industry (China) |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/48492]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Liu, Kaiqi |
| 作者单位 | 1.AVIC Tianshui New & High Abras Co Ltd, Tianshui City, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yan, Mingwei,Zhang, Jiayu,Yang, Yumin,et al. The phase composition and microstructural evolution of a novel MgO-C-Al-Si refractory used in bottom-blowing elements at high temperatures in flowing nitrogen[J]. JOURNAL OF ASIAN CERAMIC SOCIETIES,2021:12. |
| APA | Yan, Mingwei,Zhang, Jiayu,Yang, Yumin,Liu, Kaiqi,&Sun, Guangchao.(2021).The phase composition and microstructural evolution of a novel MgO-C-Al-Si refractory used in bottom-blowing elements at high temperatures in flowing nitrogen.JOURNAL OF ASIAN CERAMIC SOCIETIES,12. |
| MLA | Yan, Mingwei,et al."The phase composition and microstructural evolution of a novel MgO-C-Al-Si refractory used in bottom-blowing elements at high temperatures in flowing nitrogen".JOURNAL OF ASIAN CERAMIC SOCIETIES (2021):12. |
入库方式： OAI收割
来源：过程工程研究所
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