Atomic packing and short-to-medium-range order in metallic glasses

Nature ◽  
2006 ◽  
Vol 439 (7075) ◽  
pp. 419-425 ◽  
Author(s):  
H. W. Sheng ◽  
W. K. Luo ◽  
F. M. Alamgir ◽  
J. M. Bai ◽  
E. Ma
Keyword(s):  
Metallic Glasses ◽  
Range Order ◽  
Atomic Packing ◽  
Medium Range Order ◽  
Medium Range

Atomic packing and short to medium range order in a U-Fe metallic glass

2012 ◽  
Vol 101 (2) ◽  
pp. 021909 ◽  
Author(s):  
Y. Zhang ◽  
N. Mattern ◽  
T. X. Liang ◽  
Q. Huang ◽  
J. Eckert
Keyword(s):  
Metallic Glass ◽  
Range Order ◽  
Atomic Packing ◽  
Medium Range Order ◽  
Medium Range

scholarly journals Atomic packing and short-to-medium range order evolution of Zr-Pd metallic glass

2011 ◽  
Vol 56 (36) ◽  
pp. 3908-3911 ◽  
Author(s):  
Li Qi ◽  
Mei Liu ◽  
ShiLiang Zhang ◽  
XinYu Zhang ◽  
ChunLin Tan
Keyword(s):  
Metallic Glass ◽  
Range Order ◽  
Atomic Packing ◽  
Medium Range Order ◽  
Medium Range

A new method to characterize medium range order in metallic glasses

2012 ◽  
Vol 358 (15) ◽  
pp. 1873-1875 ◽  
Author(s):  
S.P. Pan ◽  
J.Y. Qin ◽  
W.M. Wang ◽  
T.K. Gu
Keyword(s):  
Metallic Glasses ◽  
Range Order ◽  
New Method ◽  
Medium Range Order ◽  
Medium Range

scholarly journals Dual Cluster Model for Medium-Range Order in Metallic Glasses

Metals ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 1840
Author(s):  
Masato Shimono ◽  
Hidehiro Onodera
Keyword(s):  
Network Structure ◽  
Metallic Glasses ◽  
Random Network ◽  
Alloy System ◽  
Md Simulations ◽  
Range Order ◽  
Size Difference ◽  
Medium Range Order ◽  
Liquid Phases ◽  
Medium Range

The atomic structure of medium-range order in metallic glasses is investigated by using molecular dynamics (MD) simulations. Glass formation processes were simulated by rapid cooling from liquid phases of a model binary alloy system of different-sized elements. Two types of short-range order of atomic clusters with the five-fold symmetry are found in glassy phases: icosahedral clusters (I-clusters) formed around the smaller-sized atoms and Frank–Kasper clusters (i.e., Z14, Z15, and Z16 clusters (Z-clusters)) formed around the bigger-sized atoms. Both types of clusters (I-and Z-clusters) are observed even in liquid phases and the population of them goes up as the temperature goes down. A considerable atomic size difference between alloying elements would enhance the formation of both the I- and Z-clusters. In glassy phases, the I- and Z-clusters are mutually connected to form a complicated network, and the network structure becomes denser as the structural relaxation goes on. In the network, the medium-range order is mainly constructed by the volume sharing type connection between I- and Z-clusters. Following Nelson’s disclination theory, the network structure can be understood as a random network of Z-clusters, which is complimentarily surrounded by another type of network formed by I-clusters.

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