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Investigation on the effect of Nb doping on the oxidation mechanism of Ti3SiC2
Zhenga, Lili1,2,3; Hua, Qingsong1,2; Li, Xichao3,4; Li, Meishuan3; Qian, Yuhai3; Xu, Jingjun3; Zhang, Jianmin1,2; Zheng, Zongmin1,2; Dai, Zuoqiang1,2; Zhang, Hongxin1,2; Zhang, Tiezhu1,2
Corresponding AuthorZhenga, Lili(llzhengqdu@163.com) ; Li, Xichao(lixc@qibebt.ac.cn)
2018-08-01
Source PublicationCORROSION SCIENCE
ISSN0010-938X
Volume140Pages:374-378
AbstractNb doping substantially changes the oxidation mechanism and significantly enhances its oxidation resistance of Ti3SiC2 at 800 degrees C. After Nb doping, the oxidation of Ti3SiC2 is only controlled by the inward diffusion of O, while the outward diffusion of Ti is restrained totally. The oxide layer structure changes from a duplex-layer of TiO2 outer layer and TiO2+SiO2 mixture inner layer to a single TiO2+SiO2 mixture layer. It is proposed that Nb doping decreases the concentrations of oxygen vacancies and Ti interstitials in the formed TiO2, leading to the completely restrained outward diffusion of Ti and the decreased oxidation rate.
KeywordTi3SiC2Nb doping Oxidation mechanism Ion diffusion Defect concentration
Funding OrganizationNational Science Foundation of China ; National Key Research and Development Program of China ; Shandong Province Key Research and Development Program ; Qingdao postdoctoral research project ; Scientific Research Start-up Fund of Qingdao University
DOI10.1016/j.corsci.2018.05.028
Indexed BySCI
Language英语
Funding ProjectNational Science Foundation of China[51271191] ; National Science Foundation of China[51571205] ; National Key Research and Development Program of China[2017YFB0102004] ; Shandong Province Key Research and Development Program[2017CXGC0502] ; Qingdao postdoctoral research project ; Scientific Research Start-up Fund of Qingdao University[41117010089]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000440121100036
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/128946
Collection中国科学院金属研究所
Corresponding AuthorZhenga, Lili; Li, Xichao
Affiliation1.Qingdao Univ, Natl Engn Res Ctr Intelligent Elect Vehicle Power, 308 Ningxia Rd, Qingdao 266071, Peoples R China
2.Qingdao Univ, Coll Mech & Elect Engn, 308 Ningxia Rd, Qingdao 266071, Peoples R China
3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China
4.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China
Recommended Citation
GB/T 7714
Zhenga, Lili,Hua, Qingsong,Li, Xichao,et al. Investigation on the effect of Nb doping on the oxidation mechanism of Ti3SiC2[J]. CORROSION SCIENCE,2018,140:374-378.
APA Zhenga, Lili.,Hua, Qingsong.,Li, Xichao.,Li, Meishuan.,Qian, Yuhai.,...&Zhang, Tiezhu.(2018).Investigation on the effect of Nb doping on the oxidation mechanism of Ti3SiC2.CORROSION SCIENCE,140,374-378.
MLA Zhenga, Lili,et al."Investigation on the effect of Nb doping on the oxidation mechanism of Ti3SiC2".CORROSION SCIENCE 140(2018):374-378.
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