A structural signature of liquid fragility
TLDR
It is demonstrated from a study of several metallic glass-forming liquids that the rate of this structural ordering as a function of temperature correlates with the kinetic fragility of the liquid, demonstrating a structural basis for fragility.Abstract:
Glass fragility characterises the rate of change in viscosity as a liquid is cooled towards the glass transition temperature. Here, the authors demonstrate via neutron diffraction that the rate at which structural ordering occurs within the melt correlates with kinetic fragility in a range of metallic glass samples.read more
Citations
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Structural heterogeneities and mechanical behavior of amorphous alloys
J.C. Qiao,J.C. Qiao,J.C. Qiao,Q. Wang,Jean-Marc Pelletier,Hidemi Kato,Riccardo Casalini,Daniel Crespo,Eloi Pineda,Yao Yao,Yong Yang +10 more
TL;DR: In this paper, the authors review the recent advances on the understanding of structural heterogeneities in metallic supercooled liquids and the influence of the structural heterogeneity on the overall mechanical properties of the corresponding amorphous alloys.
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Tuning order in disorder
TL;DR: Recent research has revealed considerable diversity in the short-range ordering of metallic glass, identifying favoured and unfavoured local atomic configurations coexisting in an inhomogeneous amorphous structure.
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Understanding Glass through Differential Scanning Calorimetry
Qiuju Zheng,Yanfei Zhang,Maziar Montazerian,Ozgur Gulbiten,John C. Mauro,Edgar Dutra Zanotto,Yuanzheng Yue,Yuanzheng Yue,Yuanzheng Yue +8 more
TL;DR: A comprehensive review of the many applications of DSC in glass science with focus on glass transition, relaxation, polyamorphism, and crystallization phenomena is presented and recent advances in DSC characterization technology are emphasized.
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Five-fold symmetry as indicator of dynamic arrest in metallic glass-forming liquids
TL;DR: A universal structural indicator, the average degree of five-fold local symmetry, can well describe the slowdown dynamics during glass transition and a straightforward relationship between structural parameter and viscosity (or α-relaxation time) is introduced to connect the dynamic arrest and the underlying structural evolution.
Journal ArticleDOI
Intrinsic correlation between β-relaxation and spatial heterogeneity in a metallic glass
Fan Zhu,Hung K. Nguyen,Sirui Song,Daisman P.B. Aji,Akihiko Hirata,Hao Wang,Ken Nakajima,Mingwei Chen,Mingwei Chen +8 more
TL;DR: The evolution of nanoscale structural heterogeneity in a metallic glass during β-relaxation is reported by utilizing amplitude-modulation dynamic atomic force microscopy and provides direct evidence on the structural origins of β- Relaxation in metallic glasses.
References
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TL;DR: In this article, the authors reviewed the recent development of new alloy systems of bulk metallic glasses and the properties and processing technologies relevant to the industrial applications of these alloys are also discussed.
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Non-crystalline Structure in Solidified Gold–Silicon Alloys
TL;DR: This article showed that amorphous configurations have been retained in the solid state by cooling from the melt with sufficient celerity so as to prevent formation of the equilibrium crystalline structures in solid metals and alloys.
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Atomic packing and short-to-medium-range order in metallic glasses
TL;DR: This work uses a combination of state-of-the-art experimental and computational techniques to resolve the atomic-level structure of amorphous alloys and elucidate the different types of short-range order as well as the nature of the medium- range order.