Accelerated phase transformation of thermally grown alumina on Ni2Al3: Effect of dispersion of hcp-oxides with various content and particle size and chemistry
文献类型：期刊论文
| 作者 | Khan, A.1,2; Dong, Z.2; Peng, X.3,4 |
| 刊名 | SURFACE & COATINGS TECHNOLOGY
 |
| 出版日期 | 2020-07-25 |
| 卷号 | 394页码:11 |
| 关键词 | Oxide dispersion Electrodeposition Aluminide coating Phase transformation Raman spectroscopy Oxidation |
| ISSN号 | 0257-8972 |
| DOI | 10.1016/j.surfcoat.2020.125861 |
| 通讯作者 | Peng, X.(xpeng@imr.ac.cn) |
| 英文摘要 | A promotion in theta-to-a phase transformation of thermally grown alumina on a nickel aluminide coating by dispersing Cr2O3 nanoparticles inside has been reported most recently. In the present work, the nickel aluminide coating has been deliberately dispersed with hexagonal closed pack (hcp)-structured alpha-Al2O3 or Cr2O3 particles which vary in size from nano range to micron range and in content from 2.4 wt% to 6.5 wt%, respectively. The oxidation in air at 900 degrees C leads to several findings: 1) either the finer the size or the higher the content of the oxide particle dispersion, the faster the theta-to-alpha phase transformation, and the lower the oxidation rate, 2) alpha-Al2O3 appears to be more effective than Cr2O3 in facilitating the theta-to-alpha phase transformation; 3) faster theta-to-alpha phase transformation helps to form more adherent thermally grown alumina. The reasons for the results are interpreted. |
| 资助项目 | National Natural Science Foundation of China (NSFC)[51471178] ; National Natural Science Foundation of China (NSFC)[51771088] |
| WOS研究方向 | Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000542100500038 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | National Natural Science Foundation of China (NSFC) |
| 源URL | [http://ir.imr.ac.cn/handle/321006/140409]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Peng, X. |
| 作者单位 | 1.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Lab Corros & Protect, 62 Wencui Rd, Shenyang 110016, Peoples R China 3.Nanchang Hangkong Univ, Sch Mat Sci & Engn, 696 Fenghenan Ave, Nanchang 330063, Jiangxi, Peoples R China 4.Nanchang Hangkong Univ, Jiangxi Prov Engn Res Ctr Surface Technol Aeronau, 696 Fenghenan Ave, Nanchang 330063, Jiangxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Khan, A.,Dong, Z.,Peng, X.. Accelerated phase transformation of thermally grown alumina on Ni2Al3: Effect of dispersion of hcp-oxides with various content and particle size and chemistry[J]. SURFACE & COATINGS TECHNOLOGY,2020,394:11. |
| APA | Khan, A.,Dong, Z.,&Peng, X..(2020).Accelerated phase transformation of thermally grown alumina on Ni2Al3: Effect of dispersion of hcp-oxides with various content and particle size and chemistry.SURFACE & COATINGS TECHNOLOGY,394,11. |
| MLA | Khan, A.,et al."Accelerated phase transformation of thermally grown alumina on Ni2Al3: Effect of dispersion of hcp-oxides with various content and particle size and chemistry".SURFACE & COATINGS TECHNOLOGY 394(2020):11. |
入库方式： OAI收割
来源：金属研究所
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