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	Dual-phase metallic glass and its two-dimensional fractal morphology
	Zhang, RF ; Li, JH ; Liu, BX
	2010-05-10 ; 2010-05-10
关键词	metallic glass spinodal decomposition fractal molecular dynamics simulations ion beam mixing SPINODAL DECOMPOSITION ALLOYS SYSTEM IRRADIATION MODEL Physics, Multidisciplinary
中文摘要	A dual-phase Y-W metallic glass is observed in nanoscaled Y-W multilayered films upon 200keV xenon ion irradiation. Diffraction analysis and bright field images reveal that the metallic glass consists of separated glass phases evolved from the Y and W lattices, respectively, through spinodal decomposition, and that the glass features a two-dimensional fractal morphology consisting of the W-based glass phase branches sitting on the Y-based glass substrate. The fractal dimension is determined to be 1.75 +/- 0.05, suggesting that the fractal is grown through a cluster-diffusion-limited-aggregation model. Moreover, based on a newly derived n-body Y-W potential, atomistic simulations confirm the possibility of metallic glass formation in the equilibrium immiscible Y-W system.
语种	英语 ; 英语
出版者	PHYSICAL SOCIETY JAPAN ; TOKYO ; KIKAI-SHINKO BUILDING,RM 211, 3-5-8 SHIBA-KOEN, MINATO-KU, TOKYO, 105-0011, JAPAN
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/21884]
专题	清华大学
推荐引用方式 GB/T 7714	Zhang, RF,Li, JH,Liu, BX. Dual-phase metallic glass and its two-dimensional fractal morphology[J],2010, 2010.
APA	Zhang, RF,Li, JH,&Liu, BX.(2010).Dual-phase metallic glass and its two-dimensional fractal morphology..
MLA	Zhang, RF,et al."Dual-phase metallic glass and its two-dimensional fractal morphology".(2010).

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