| Study on the formation mechanism of Y-Ti-O oxides during mechanical milling and annealing treatment | |
| 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 | |
| Corresponding Author | Li, Yanfen(yfli@imr.ac.cn) ; Yang, Ke(kyang@imr.ac.cn) |
| 2021-02-01 | |
| Source Publication | ADVANCED POWDER TECHNOLOGY
 |
| ISSN | 0921-8831 |
| Volume | 32Issue:2Pages:582-590 |
| Abstract | 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. |
| Keyword | Nuclear energy systems ODS steels Y2Ti2O7 Mechanical milling Annealing |
| Funding Organization | 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 |
| DOI | 10.1016/j.apt.2021.01.005 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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 Research Area | Engineering |
| WOS Subject | Engineering, Chemical |
| WOS ID | WOS:000617539500001 |
| Publisher | ELSEVIER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/160695 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Li, Yanfen; Yang, Ke |
| Affiliation | 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 |
| Recommended Citation 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. |
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