Effects of chemical composition and mean coordination number on glass transitions in Ge-Sb-Se glasses

doi:10.1142/S0217984917503420

CORC > 重庆绿色智能技术研究院 > 中国科学院重庆绿色智能技术研究院 > 机器人与3D打印技术创新中心

	Effects of chemical composition and mean coordination number on glass transitions in Ge-Sb-Se glasses
	Wei, Wen-Hou
刊名	MODERN PHYSICS LETTERS B
	2017-12-30
卷号	31 期号:36 页码:10
关键词	Chalcogenide glass Ge-Sb-Se MCN glass transition glass stability
ISSN号	0217-9849
DOI	10.1142/S0217984917503420
英文摘要	Glass transitions in the Ge-Sb-Se glasses were investigated by means of differential scanning calorimetry (DSC) under non-isothermal conditions. The glass transition temperature (T-g), activation energy of glass transition (E-t), and fragility index as functions of the mean coordination number (MCN) and atomic percent of Ge were examined. The maximum value of T-g in each group of the glasses occurred at the chemically stoichiometric composition, suggesting a glass transition threshold. The E-t and fragility index were calculated from the heating rate dependence of T-g. Both E-t and fragility index show the minima at MCN = 2.4 which can be attributed to the structural phase transition of a covalently glassy network at MCN = 2.4. The analysis of the experimental results suggests that both the chemical composition and MCN have significant effects on the glass transitions in Ge-Sb-Se glasses.
语种	英语
出版者	WORLD SCIENTIFIC PUBL CO PTE LTD
WOS记录号	WOS:000418036800003
内容类型	期刊论文
源URL	[http://172.16.51.4:88/handle/2HOD01W0/98]
专题	机器人与3D打印技术创新中心
通讯作者	Wei, Wen-Hou
作者单位	Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing Key Lab Addit Mfg Technol & Syst, Chongqing 400714, Peoples R China
推荐引用方式 GB/T 7714	Wei, Wen-Hou. Effects of chemical composition and mean coordination number on glass transitions in Ge-Sb-Se glasses[J]. MODERN PHYSICS LETTERS B,2017,31(36):10.
APA	Wei, Wen-Hou.(2017).Effects of chemical composition and mean coordination number on glass transitions in Ge-Sb-Se glasses.MODERN PHYSICS LETTERS B,31(36),10.
MLA	Wei, Wen-Hou."Effects of chemical composition and mean coordination number on glass transitions in Ge-Sb-Se glasses".MODERN PHYSICS LETTERS B 31.36(2017):10.