HIGH-RESOLUTION TRANSMISSION-ELECTRON-MICROSCOPY OBSERVATION OF THE ULTRA-FINE STRUCTURE OF NATURAL MAGNETITE

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	HIGH-RESOLUTION TRANSMISSION-ELECTRON-MICROSCOPY OBSERVATION OF THE ULTRA-FINE STRUCTURE OF NATURAL MAGNETITE
	Y. G. Wang; D. H. Ping; J. G. Guo
	1994
发表期刊	Journal of Applied Crystallography
ISSN	0021-8898
卷号	27 页码:96-102
摘要	The microstructure of natural magnetite found in the Panzhihua mountain in China was studied by means of high-resolution transmission electron microscopy (HRTEM). Electron diffraction patterns show lattice modulations along the [110] direction of wustite co-existing with magnetite. Such a one-dimensional superstructure, with a lattice parameter of 2.6a0, is the characteristic feature of an incommensurate structure. It is related to the nonstoichiometric phase P' of Fe0.920O that results from a deficiency of Fe atoms in the wustite. The structural images exhibit the intergrowth of the magnetite matrix and the wustite. The wavelike ultra-fine structure in wustite suggests that the superstructure is possibly coincident with the displacive lattice modulation. Basal and nonbasal domains, which result from the random distribution of Fe atoms during the initial stage of nucleation of magnetite during the geological aging of wustite, are also revealed in the structural images and are discussed on the basis of the structure of magnetite.
部门归属	acad sinica,inst geochem,guiyang 550002,peoples r china.;wang, yg (reprint author), acad sinica,inst met res,atom imaging solids lab,shenyang 110015,peoples r china
关键词	Cation Diffusion Defects
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/38943
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. G. Wang,D. H. Ping,J. G. Guo. HIGH-RESOLUTION TRANSMISSION-ELECTRON-MICROSCOPY OBSERVATION OF THE ULTRA-FINE STRUCTURE OF NATURAL MAGNETITE[J]. Journal of Applied Crystallography,1994,27:96-102.
APA	Y. G. Wang,D. H. Ping,&J. G. Guo.(1994).HIGH-RESOLUTION TRANSMISSION-ELECTRON-MICROSCOPY OBSERVATION OF THE ULTRA-FINE STRUCTURE OF NATURAL MAGNETITE.Journal of Applied Crystallography,27,96-102.
MLA	Y. G. Wang,et al."HIGH-RESOLUTION TRANSMISSION-ELECTRON-MICROSCOPY OBSERVATION OF THE ULTRA-FINE STRUCTURE OF NATURAL MAGNETITE".Journal of Applied Crystallography 27(1994):96-102.