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Orientation relationship and interfacial structure between alpha-nb5si3 and nb solid solution in the eutectic lamellar structure

文献类型：期刊论文

作者Cheng, Guangming1,3; Tian, Yuxin2; He, Lianlong1; Guo, Jianting2
刊名Philosophical magazine
出版日期2009
卷号89期号:31页码:2801-2812
关键词Microstructure Orientation relationship Interfacial structure Alpha-nb5si3 Transmission electron microscopy
ISSN号1478-6435
DOI10.1080/14786430903128015
通讯作者He, lianlong(llhe@imr.ac.cn)
英文摘要The orientation relationship (or) and the interfacial structure of the eutectic alpha-nb5si3 and nb solid solution (nbss) lamellar microstructure were investigated by transmission electron microscopy (tem). the or between alpha-nb5si3 and nbss was determined as (002)(alpha)//(002)(nb) and [310](alpha)//[110](nb). in spite of the significant difference in crystal structure between alpha-nb5si3 and nbss, the interface was found to be semi-coherent with good matching. high-resolution tem images of the alpha-nb5si3/nbss interface are presented to describe the chemistry of the terminating plane of alpha-nb5si3. the results revealed that a pure nb layer not si or mixed (nb + si) layer of the alpha-nb5si3 phase was bonded to the nb phase at the interface. a periodic array of edge-type misfit dislocations, with line direction [1 (1) over bar0](nb) and burgers vector 1/2[1 (1) over bar0](nb), was observed at the interface.
WOS关键词EPITAXIAL NB-AL2O3 INTERFACES ; SILICIDE-BASED COMPOSITES ; ATOMIC-STRUCTURE ; ALLOY ; MICROSTRUCTURE ; BEHAVIOR ; PHASE
WOS研究方向Materials Science ; Mechanics ; Metallurgy & Metallurgical Engineering ; Physics
WOS类目Materials Science, Multidisciplinary ; Mechanics ; Metallurgy & Metallurgical Engineering ; Physics, Applied ; Physics, Condensed Matter
语种英语
WOS记录号WOS:000271871600003
出版者TAYLOR & FRANCIS LTD
URI标识http://www.irgrid.ac.cn/handle/1471x/2393680
专题中国科学院大学
通讯作者He, Lianlong
作者单位1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Superalloy Div, Shenyang 110016, Peoples R China
3.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
推荐引用方式
GB/T 7714		 Cheng, Guangming,Tian, Yuxin,He, Lianlong,et al. Orientation relationship and interfacial structure between alpha-nb5si3 and nb solid solution in the eutectic lamellar structure[J]. Philosophical magazine,2009,89(31):2801-2812.
APA Cheng, Guangming,Tian, Yuxin,He, Lianlong,&Guo, Jianting.(2009).Orientation relationship and interfacial structure between alpha-nb5si3 and nb solid solution in the eutectic lamellar structure.Philosophical magazine,89(31),2801-2812.
MLA Cheng, Guangming,et al."Orientation relationship and interfacial structure between alpha-nb5si3 and nb solid solution in the eutectic lamellar structure".Philosophical magazine 89.31(2009):2801-2812.

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来源：中国科学院大学

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