Investigation on the effect of Nb doping on the oxidation mechanism of Ti3SiC2

doi:10.1016/j.corsci.2018.05.028

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	Investigation on the effect of Nb doping on the oxidation mechanism of Ti3SiC2
	Zheng, LL ; Hua, QS ; Li, XC ; Li, MS ; Qian, YH ; Xu, JJ ; Zhang, JM ; Zheng, ZM ; Dai, ZQ ; Zhang, HX
刊名	CORROSION SCIENCE
	2018-08-01
卷号	140 页码:374-378
关键词	Ti3SiC2Nb doping Oxidation mechanism Ion diffusion Defect concentration
ISSN号	0010-938X
DOI	10.1016/j.corsci.2018.05.028
英文摘要	Nb 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.
学科主题	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
语种	英语
WOS记录号	WOS:000440121100036
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/80054]
专题	金属研究所_中国科学院金属研究所
作者单位	1.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
推荐引用方式 GB/T 7714	Zheng, LL,Hua, QS,Li, XC,et al. Investigation on the effect of Nb doping on the oxidation mechanism of Ti3SiC2[J]. CORROSION SCIENCE,2018,140:374-378.
APA	Zheng, LL.,Hua, QS.,Li, XC.,Li, MS.,Qian, YH.,...&Zhang, TZ.(2018).Investigation on the effect of Nb doping on the oxidation mechanism of Ti3SiC2.CORROSION SCIENCE,140,374-378.
MLA	Zheng, LL,et al."Investigation on the effect of Nb doping on the oxidation mechanism of Ti3SiC2".CORROSION SCIENCE 140(2018):374-378.