Investigation of thermomechanical responses in ultrafast laser heating of metal nanofilms

doi:10.1016/j.tsf.2011.05.062

IMECH-IR > 环境力学重点实验室(2009-2011)

	Investigation of thermomechanical responses in ultrafast laser heating of metal nanofilms
	Zhou ZP(周志平); Ma W(马维); Ma, W (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China
发表期刊	Thin Solid Films
	2011
卷号	519 期号:22 页码:7940-7946
ISSN	0040-6090
摘要	The present work uses two-temperature model and Cattaneo's constitutive model to study the thermomechanical responses and the size effect on energy transport during ultrafast laser heating of Au nanofilms. It is shown that the grain size effects on thermophysical properties, heat transport and thermal stresses are rather evident when the average grain diameter is less than the electron mean free path. The study on heat transport shows that there are two heat waves propagating in the lattice during nonequilibrium heating of films. It is found that the classical thermoelastic theory can not reveal the generation of the ultrafast thermal stresses during nonequilibrium heating: however, it can approximately describe the stress evolution in the stage of thermal equilibrium. (C) 2011 Elsevier B.V. All rights reserved.
关键词	Two-temperature Model Ultrafast Laser Thermomechanical Response Size Effect Nonequilibrium Heating Grain-boundary Scattering Electrical-resistivity Polycrystalline Films Size Gold Conductivity Electrons Surface Waves
学科领域	Materials Science ; Physics
DOI	10.1016/j.tsf.2011.05.062
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000295057000054
关键词[WOS]	GRAIN-BOUNDARY SCATTERING ; ELECTRICAL-RESISTIVITY ; POLYCRYSTALLINE FILMS ; SIZE ; GOLD ; CONDUCTIVITY ; ELECTRONS ; SURFACE ; WAVES
WOS研究方向	Materials Science ; Physics
WOS类目	Materials Science, Multidisciplinary ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter
项目资助者	The project was supported by the National Natural Science Foundation of China (10672166, 10632100).
课题组名称	LMFS工程地质体力学(LEM)
论文分区	二类/Q2
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/44997
专题	环境力学重点实验室(2009-2011)
通讯作者	Ma, W (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Zhou ZP,Ma W,Ma, W . Investigation of thermomechanical responses in ultrafast laser heating of metal nanofilms[J]. Thin Solid Films,2011,519,22,:7940-7946.
APA	Zhou ZP,Ma W,&Ma, W .(2011).Investigation of thermomechanical responses in ultrafast laser heating of metal nanofilms.Thin Solid Films,519(22),7940-7946.
MLA	Zhou ZP,et al."Investigation of thermomechanical responses in ultrafast laser heating of metal nanofilms".Thin Solid Films 519.22(2011):7940-7946.

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