Study on the formation mechanism of Y-Ti-O oxides during mechanical milling and annealing treatment
文献类型：期刊论文
| 作者 | Zhang, Jiarong1,2; Li, Yanfen2,3; Bao, Feiyang2,4; Rui, Xiang2,4; Duan, Zhengang5; Yan, Wei2,3; Shi, Quanqiang2,3; Wang, Wei2,3; Shan, Yiyin2,3; Yang, Ke2 |
| 刊名 | ADVANCED POWDER TECHNOLOGY
 |
| 出版日期 | 2021-02-01 |
| 卷号 | 32期号:2页码:582-590 |
| ISSN号 | 0921-8831 |
| 关键词 | Nuclear energy systems ODS steels Y2Ti2O7 Mechanical milling Annealing |
| DOI | 10.1016/j.apt.2021.01.005 |
| 通讯作者 | Li, Yanfen(yfli@imr.ac.cn) ; Yang, Ke(kyang@imr.ac.cn) |
| 英文摘要 | Y-Ti-O nano-scale oxides play important roles in ensuring the excellent performance of oxide dispersion strengthened (ODS) steels. In this study, a model powder system of Y2O3 and Ti was designed to investigate the formation and evolution mechanism of Y-Ti-O oxides. The morphology of powders tended to be stable after high energy ball milling for 240 min in Ar. X-ray diffraction (XRD) results suggested that there was no formation of new phase after mechanical milling. Thermo-gravimetric and differential thermal analysis (TG-DTA) was applied to analyze physical and chemical reactions of milled powders respectively in Ar and air. The corresponding annealing and XRD were performed to study the types and structures of oxides at different temperatures. It shows that oxygen concentration and temperature are the critical factors affecting the formation of oxides. Ti was evolved into Ti6O, Ti3O and TiO2 in turn with temperature increasing. Then only TiO2 was reacted with Y2O3 to form Y2Ti2O7. The formation of Y2Ti2O7 began at around 500 celcius and was completed around 1004 celcius. A maximum formation rate occurred at about 779 celcius. High resolution transmission electron microscopy (HRTEM) suggested that the main phase in powders sintered at 1100 celcius was identified as pyrochlore structure Y2Ti2O7. (c) 2021 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder Technology Japan. All rights reserved. |
| 资助项目 | National Natural Science Foundation of China[51971217] ; Institute of Metal Research Chinese Academy of Science (IMR-CAS)[JY7A7A111A1] ; Youth Innovation Promotion Association of Chinese Academy of Sciences[2017233] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000617539500001 |
| 资助机构 | National Natural Science Foundation of China ; Institute of Metal Research Chinese Academy of Science (IMR-CAS) ; Youth Innovation Promotion Association of Chinese Academy of Sciences |
| 源URL | [http://ir.imr.ac.cn/handle/321006/160690]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Li, Yanfen; Yang, Ke |
| 作者单位 | 1.Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Liaoning, Peoples R China 2.Chinese Acad Sci IMR CAS, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 3.IMR, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Liaoning, Peoples R China 4.Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China 5.Nucl Power Inst China, Sci & Technol Reactor Syst Design Technol Lab, Chengdu 610213, Shichuan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Jiarong,Li, Yanfen,Bao, Feiyang,et al. Study on the formation mechanism of Y-Ti-O oxides during mechanical milling and annealing treatment[J]. ADVANCED POWDER TECHNOLOGY,2021,32(2):582-590. |
| APA | Zhang, Jiarong.,Li, Yanfen.,Bao, Feiyang.,Rui, Xiang.,Duan, Zhengang.,...&Yang, Ke.(2021).Study on the formation mechanism of Y-Ti-O oxides during mechanical milling and annealing treatment.ADVANCED POWDER TECHNOLOGY,32(2),582-590. |
| MLA | Zhang, Jiarong,et al."Study on the formation mechanism of Y-Ti-O oxides during mechanical milling and annealing treatment".ADVANCED POWDER TECHNOLOGY 32.2(2021):582-590. |
入库方式： OAI收割
来源：金属研究所
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