A new method for fast statistical measurement of interfacial misfit strain around nano-scale semicoherent particles

doi:10.1039/c7ra05079h

CORC > 合肥物质科学研究院 > 中国科学院合肥物质科学研究院 > 中国科学院核能安全技术研究所

	A new method for fast statistical measurement of interfacial misfit strain around nano-scale semicoherent particles
	Song, Liang Liang 1,2; Liu, Shaojun 1; Mao, Xiaodong 1
刊名	RSC ADVANCES
	2017
卷号	7 期号:45 页码:28506-28512
DOI	10.1039/c7ra05079h
文献子类	Article
英文摘要	An innovative diffraction contrast imaging method derived from Ashby-Brown contrast is presented for fast and statistical measurement of interfacial misfit strain around nano-sized semi-coherent particles. A correlation between nano-scale interfacial misfit strain and the fringe-like transmission electron microscopy (TEM) contrast lines was set up, by which interfacial misfit strain could be obtained by measuring the inter-spacings between the so-called "no-contrast" lines. The mechanism of the measurement lies on the symmetry of the strain field at specific orientations around semi-coherent particles due to the presence of misfit dislocations, which induces "no-contrast" lines on TEM images under proper two-beam conditions. A much lower average lattice misfit strain of 4%, rather than 9.45% expected from lattice misfit between matrix and precipitate crystals, was revealed along (022)(Matrix) in austenitic oxide dispersion strengthened steel by this method, and was confirmed by geometric phase analysis (GPA) on high resolution transmission electron microscopy (HRTEM) images. This diffraction contrast imaging method is especially suitable for measuring misfit strain around particles that are smaller than 10 nm, and is expected to bridge the gap between nano-scale interfacial structure and mechanical properties of materials that are strengthened by semi-coherent nano-particles.
WOS关键词	AUSTENITIC STAINLESS-STEEL ; RESEARCH-AND-DEVELOPMENT ; OXIDE INTERFACES ; STRENGTHENED ALLOYS ; ATOMIC-STRUCTURE ; FERRITIC STEELS ; RECENT PROGRESS ; PRECIPITATION ; COHERENCY ; ENERGY
WOS研究方向	Chemistry
语种	英语
WOS记录号	WOS:000402999300067
资助机构	One Hundred Talents Program of Chinese Academy of Sciences ; One Hundred Talents Program of Chinese Academy of Sciences ; One Hundred Talents Program of Chinese Academy of Sciences ; One Hundred Talents Program of Chinese Academy of Sciences ; One Hundred Talents Program of Chinese Academy of Sciences ; One Hundred Talents Program of Chinese Academy of Sciences ; One Hundred Talents Program of Chinese Academy of Sciences ; One Hundred Talents Program of Chinese Academy of Sciences ; National Magnetic Confinement Fusion Science Program of China(2013GB108005) ; National Magnetic Confinement Fusion Science Program of China(2013GB108005) ; National Magnetic Confinement Fusion Science Program of China(2013GB108005) ; National Magnetic Confinement Fusion Science Program of China(2013GB108005) ; National Magnetic Confinement Fusion Science Program of China(2013GB108005) ; National Magnetic Confinement Fusion Science Program of China(2013GB108005) ; National Magnetic Confinement Fusion Science Program of China(2013GB108005) ; National Magnetic Confinement Fusion Science Program of China(2013GB108005) ; One Hundred Talents Program of Chinese Academy of Sciences ; One Hundred Talents Program of Chinese Academy of Sciences ; One Hundred Talents Program of Chinese Academy of Sciences ; One Hundred Talents Program of Chinese Academy of Sciences ; One Hundred Talents Program of Chinese Academy of Sciences ; One Hundred Talents Program of Chinese Academy of Sciences ; One Hundred Talents Program of Chinese Academy of Sciences ; One Hundred Talents Program of Chinese Academy of Sciences ; National Magnetic Confinement Fusion Science Program of China(2013GB108005) ; National Magnetic Confinement Fusion Science Program of China(2013GB108005) ; National Magnetic Confinement Fusion Science Program of China(2013GB108005) ; National Magnetic Confinement Fusion Science Program of China(2013GB108005) ; National Magnetic Confinement Fusion Science Program of China(2013GB108005) ; National Magnetic Confinement Fusion Science Program of China(2013GB108005) ; National Magnetic Confinement Fusion Science Program of China(2013GB108005) ; National Magnetic Confinement Fusion Science Program of China(2013GB108005)
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/31944]
专题	合肥物质科学研究院_中国科学院核能安全技术研究所
作者单位	1.Chinese Acad Sci, Inst Nucl Energy Safety Technol, Key Lab Neutron & Radiat Safety, Hefei 230031, Anhui, Peoples R China 2.Univ Sci & Technol China, Hefei, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Song, Liang Liang,Liu, Shaojun,Mao, Xiaodong. A new method for fast statistical measurement of interfacial misfit strain around nano-scale semicoherent particles[J]. RSC ADVANCES,2017,7(45):28506-28512.
APA	Song, Liang Liang,Liu, Shaojun,&Mao, Xiaodong.(2017).A new method for fast statistical measurement of interfacial misfit strain around nano-scale semicoherent particles.RSC ADVANCES,7(45),28506-28512.
MLA	Song, Liang Liang,et al."A new method for fast statistical measurement of interfacial misfit strain around nano-scale semicoherent particles".RSC ADVANCES 7.45(2017):28506-28512.