Correlation between dynamic flow and thermodynamic glass transition in metallic glasses

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	Correlation between dynamic flow and thermodynamic glass transition in metallic glasses
	Ke, HB ; Wen, P ; Zhao, DQ ; Wang, WH
刊名	APPLIED PHYSICS LETTERS
	2010
卷号	96 期号:25
关键词	SUPERCOOLED LIQUIDS FORMING LIQUIDS RELAXATION
ISSN号	0003-6951
通讯作者	Ke, HB: Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China.
中文摘要	We report the values of steps of heat capacity (Delta C(p)) during the glass transition in a variety of metallic glasses (MGs). It is found that Delta C(p) is around 13.69 J mol(-1) K(-1) and almost invariable for the MGs. Based on the Eyring's theory [N. Hirai and H. Eyring, J. Polym. Sci. 37, 51 (1959)], the phenomenon corresponds to a critical reduced free volume value. This exhibits that the glass transition takes place when the reduced free volume approaches to similar to 2.35% in the MG systems. The value, consistent with that of the yielding of MGs, confirms that temperature and stress are equivalent for fluidizing MGs. Our results give an implication to understanding the glass transition in MGs as a Lindemann-type melting behavior [F. A. Lindemann, Z. Phys. 11, 609 (1910)]. (C) 2010 American Institute of Physics. [doi:10.1063/1.3455337]
收录类别	SCI
资助信息	NSF of China [50731008, 50921091]; MOST 973 of China [2007CB613904, 2010CB731600]
语种	英语
公开日期	2013-09-17
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/35209]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Ke, HB,Wen, P,Zhao, DQ,et al. Correlation between dynamic flow and thermodynamic glass transition in metallic glasses[J]. APPLIED PHYSICS LETTERS,2010,96(25).
APA	Ke, HB,Wen, P,Zhao, DQ,&Wang, WH.(2010).Correlation between dynamic flow and thermodynamic glass transition in metallic glasses.APPLIED PHYSICS LETTERS,96(25).
MLA	Ke, HB,et al."Correlation between dynamic flow and thermodynamic glass transition in metallic glasses".APPLIED PHYSICS LETTERS 96.25(2010).