Study on the formation mechanism of Y-Ti-O oxides during mechanical milling and annealing treatment

doi:10.1016/j.apt.2021.01.005

IMR OpenIR

	Study on the formation mechanism of Y-Ti-O oxides during mechanical milling and annealing treatment
	Zhang, Jiarong 1,2; Li, Yanfen 2,3; Bao, Feiyang 2,4; Rui, Xiang 2,4; Duan, Zhengang 5; Yan, Wei 2,3; Shi, Quanqiang 2,3; Wang, Wei 2,3; Shan, Yiyin 2,3; Yang, Ke 2
通讯作者	Li, Yanfen(yfli@imr.ac.cn) ; Yang, Ke(kyang@imr.ac.cn)
	2021-02-01
发表期刊	ADVANCED POWDER TECHNOLOGY
ISSN	0921-8831
卷号	32 期号:2 页码:582-590
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.
关键词	Nuclear energy systems ODS steels Y2Ti2O7 Mechanical milling Annealing
资助者	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
收录类别	SCI
语种	英语
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
WOS类目	Engineering, Chemical
WOS记录号	WOS:000617539500001
出版者	ELSEVIER
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/160692
专题	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.