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Study on Crystallization Kinetics of Binary Alloys Through Model Colloidal Mixtures
Hu YP; Lan D(蓝鼎); Dai GL(戴国亮); Jiang H(姜恒); Duan L(段俐); Wei BC(魏炳忱); Wei, BC (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Micrograv, Natl Micrograv Lab, Beijing 100190, Peoples R China.
Source PublicationJOURNAL OF ALLOYS AND COMPOUNDS
2010
Volume504Pages:S243-S246
ISSN0925-8388
AbstractSince the discovery of amorphous alloys, extensive attentions have been paid to understand the mechanism of glass-forming. The structural studies on its underlying mechanism have met challenge on direct structural characterization. It has been shown that the phase behavior of colloids dispersed in a solvent is thermodynamically equivalent to that of atoms and small molecules, however, colloids can be studied with optical microscopy due to their relatively large size. In this work, we use a binary colloidal model system with the particle size ratio comparable to atomic ratio of reported binary bulk metallic glasses to study the topological effect on crystallization and glass-forming ability of binary metallic alloys (Cu-Hf and Cu-Zr systems). The crystallization kinetics and structure of the colloid system were studied by real-time optical examination and light scattering technique. The results exhibit that there are two confined regions in the mixing ratio (composition) range in the colloid system with an enhanced glass-forming ability and retarded crystallization kinetics. The agreement between results of the model system and the experimental data on the binary bulk metallic glass formation suggests that purely topological factor plays an important role in determining the glass-forming ability. (C) 2010 Elsevier B.V. All rights reserved.
KeywordGlass-forming Ability Metallic Glass Colloid Crystallization
DOI10.1016/j.jallcom.2010.02.151
Indexed BySCI ; EI
Language英语
WOS IDWOS:000285252600062
WOS KeywordBULK METALLIC-GLASS ; CU-ZR ; MECHANICAL-PROPERTIES ; THERMAL-STABILITY ; PHASE-SEPARATION ; FORMING ABILITY ; SPHERES ; SYSTEM
WOS Research AreaChemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/58605
Collection国家微重力实验室
Corresponding AuthorWei, BC (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Micrograv, Natl Micrograv Lab, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Hu YP,Lan D,Dai GL,et al. Study on Crystallization Kinetics of Binary Alloys Through Model Colloidal Mixtures[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2010,504:S243-S246.
APA Hu YP.,蓝鼎.,戴国亮.,姜恒.,段俐.,...&Wei, BC .(2010).Study on Crystallization Kinetics of Binary Alloys Through Model Colloidal Mixtures.JOURNAL OF ALLOYS AND COMPOUNDS,504,S243-S246.
MLA Hu YP,et al."Study on Crystallization Kinetics of Binary Alloys Through Model Colloidal Mixtures".JOURNAL OF ALLOYS AND COMPOUNDS 504(2010):S243-S246.
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