Partial dislocation in carbon-vacancy-ordered Nb(12)A(13)C(8)

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	Partial dislocation in carbon-vacancy-ordered Nb(12)A(13)C(8)
	Zhang, H; Wang, XH; Wu, ED; Zhou, YC; Wang, XH (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China.; Zhou, YC (reprint author), Aerosp Res Inst Mat & Proc Technol, Sci & Technol Adv Funct Composite Lab, Beijing 100076, Peoples R China.
刊名	SCRIPTA MATERIALIA
	2018-03-01
卷号	145 页码:85-89
关键词	Transmission Electron-microscopy Temperature Solution Growth Transition-metal Carbides Max Phases Room-temperature m(n+1)Ax(n) Phases Grain-boundaries Single-crystals Stacking-faults Ti3sic2
ISSN号	1359-6462
英文摘要	Basal dislocations in nanolaminated machinable ternary carbides and nitrides (also known as MAX phases) have been postulated to be the result of shearing M-A bonds, but have not been microscopically confirmed yet. This study on dislocations and stacking faults in C-vacancy-ordered Nb(12)A(13)C(8) demonstrates that the basal dislocation core lies between NbC slabs, verifying the shear of Nb-Al bonds. The formation of observed 1/3 < 01 (1) over bar0 > type partial dislocations therefore does not give rise to stacking faults. The frequently observed stacking faults are special intergrowth structures of atomically thin NbC slabs embedded in the Nb(12)A(13)C(8) grain. (C) 2017 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.; Basal dislocations in nanolaminated machinable ternary carbides and nitrides (also known as MAX phases) have been postulated to be the result of shearing M-A bonds, but have not been microscopically confirmed yet. This study on dislocations and stacking faults in C-vacancy-ordered Nb(12)A(13)C(8) demonstrates that the basal dislocation core lies between NbC slabs, verifying the shear of Nb-Al bonds. The formation of observed 1/3 < 01 (1) over bar0 > type partial dislocations therefore does not give rise to stacking faults. The frequently observed stacking faults are special intergrowth structures of atomically thin NbC slabs embedded in the Nb(12)A(13)C(8) grain. (C) 2017 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
学科主题	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
语种	英语
资助机构	Youth Innovation Promotion Association, Chinese Academy of Sciences [2011152]; Special Program for Applied Research on Super Computation of the NSFC-Guangdong Joint Fund
公开日期	2018-06-05
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/79478]
专题	金属研究所_中国科学院金属研究所
通讯作者	Wang, XH (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China.; Zhou, YC (reprint author), Aerosp Res Inst Mat & Proc Technol, Sci & Technol Adv Funct Composite Lab, Beijing 100076, Peoples R China.
推荐引用方式 GB/T 7714	Zhang, H,Wang, XH,Wu, ED,et al. Partial dislocation in carbon-vacancy-ordered Nb(12)A(13)C(8)[J]. SCRIPTA MATERIALIA,2018,145:85-89.
APA	Zhang, H,Wang, XH,Wu, ED,Zhou, YC,Wang, XH ,&Zhou, YC .(2018).Partial dislocation in carbon-vacancy-ordered Nb(12)A(13)C(8).SCRIPTA MATERIALIA,145,85-89.
MLA	Zhang, H,et al."Partial dislocation in carbon-vacancy-ordered Nb(12)A(13)C(8)".SCRIPTA MATERIALIA 145(2018):85-89.