Heredity of medium-range order structure from melts to amorphous solids

2012 ◽  
Vol 112 (8) ◽  
pp. 083524 ◽  
Author(s):  
Y. W. Bai ◽  
X. F. Bian ◽  
X. Q. Lv ◽  
S. P. Pan ◽  
J. Y. Qin ◽  
...  
Keyword(s):  
Amorphous Solids ◽  
Range Order ◽  
Order Structure ◽  
Medium Range Order ◽  
Medium Range

Medium-range order structure in Al80Fe20 alloy during rapid solidification

2002 ◽  
Vol 301 (5-6) ◽  
pp. 477-483 ◽  
Author(s):  
Wang Li ◽  
Hongri Cong ◽  
Jingxiang Zhang ◽  
Xiufang Bian ◽  
Hui Li ◽  
...  
Keyword(s):  
Rapid Solidification ◽  
Range Order ◽  
Order Structure ◽  
Medium Range Order ◽  
Medium Range

scholarly journals Mediumrange Order Structure in Liquid Al80Fe20Alloy

2002 ◽  
Vol 18 (01) ◽  
pp. 39-44
Author(s):  
Cong Hong-Ri ◽  
◽  
Bian Xiu-Fang ◽  
Li Hui ◽  
Wang Li
Keyword(s):  
Range Order ◽  
Order Structure ◽  
Medium Range Order ◽  
Medium Range

scholarly journals Revealing hidden medium-range order in amorphous materials using topological data analysis

2020 ◽  
Vol 6 (37) ◽  
pp. eabc2320
Author(s):  
Søren S. Sørensen ◽  
Christophe A. N. Biscio ◽  
Mathieu Bauchy ◽  
Lisbeth Fajstrup ◽  
Morten M. Smedskjaer
Keyword(s):  
Data Analysis ◽  
Amorphous Materials ◽  
Persistent Homology ◽  
Amorphous Solids ◽  
Range Order ◽  
Silicate Glasses ◽  
Topological Data Analysis ◽  
Medium Range Order ◽  
Medium Range ◽  
Topological Data

Despite the numerous technological applications of amorphous materials, such as glasses, the understanding of their medium-range order (MRO) structure—and particularly the origin of the first sharp diffraction peak (FSDP) in the structure factor—remains elusive. Here, we use persistent homology, an emergent type of topological data analysis, to understand MRO structure in sodium silicate glasses. To enable this analysis, we introduce a self-consistent categorization of rings with rigorous geometrical definitions of the structural entities. Furthermore, we enable quantitative comparison of the persistence diagrams by computing the cumulative sum of all points weighted by their lifetime. On the basis of these analysis methods, we show that the approach can be used to deconvolute the contributions of various MRO features to the FSDP. More generally, the developed methodology can be applied to analyze and categorize molecular dynamics data and understand MRO structure in any class of amorphous solids.

Medium-Range Order Structure and Fragility of Superheated Melts of Amorphous CuHf Alloys

2006 ◽  
Vol 23 (7) ◽  
pp. 1864-1867 ◽  
Author(s):  
Bian Xiu-Fang ◽  
Sun Bao-An ◽  
Hu Li-Na
Keyword(s):  
Range Order ◽  
Order Structure ◽  
Medium Range Order ◽  
Medium Range

scholarly journals MediumRange Order Structure Clusters in Cu12％Al Elloys Melt

2001 ◽  
Vol 17 (08) ◽  
pp. 708-712 ◽  
Author(s):  
Pan Xue-Min ◽  
◽  
Bian Xiu-Fang ◽  
Qin Jing-Yu ◽  
Wang Wei-Min
Keyword(s):  
Range Order ◽  
Order Structure ◽  
Medium Range Order ◽  
Medium Range

Heredity of medium-range order structure from melts to the microstructure of Ni–Cr–W superalloy

2015 ◽  
Vol 120 (1) ◽  
pp. 183-188 ◽  
Author(s):  
Zhongtang Gao ◽  
Rui Hu ◽  
Jun Wang ◽  
Jinshan Li
Keyword(s):  
Range Order ◽  
Order Structure ◽  
Medium Range Order ◽  
Medium Range

Detection of medium-range-order structure in amorphous germanium films by spectroscopic ellipsometry

2015 ◽  
Vol 48 (4) ◽  
pp. 1011-1015 ◽  
Author(s):  
Xiao-Dong Wang ◽  
Bo Chen ◽  
Hai-Feng Wang ◽  
Bin Chen ◽  
Shi-Jie Liu ◽  
...  
Keyword(s):  
Magnetron Sputtering ◽  
Radio Frequency ◽  
Spectroscopic Ellipsometry ◽  
Range Order ◽  
Order Structure ◽  
Radio Frequency Magnetron Sputtering ◽  
Amorphous Germanium ◽  
Medium Range Order ◽  
Medium Range ◽  
Deposition Conditions

Amorphous germanium (a-Ge) films in the thickness range of 5.2–370.7 nm were prepared by radio frequency magnetron sputtering. Spectroscopic ellipsometry analysis shows that less than 3% of medium-range order exists in a-Ge under the reported deposition conditions.

scholarly journals Short and Medium-Range Order in Liquid Ternary Al80Co10Ni10, Al72.5Co14.5Ni13, and Al65Co17.5Ni17.5 Alloys

2010 ◽  
Vol 65 (1-2) ◽  
pp. 123-131 ◽  
Author(s):  
Oleksandr S. Roik ◽  
Oleksiy Samsonnikov ◽  
Volodymyr Kazimirov ◽  
Volodymyr Sokolskii
Keyword(s):  
Three Dimensional ◽  
Range Order ◽  
Ternary Alloys ◽  
X Ray Diffraction ◽  
Medium Range Order ◽  
Intermediate Range Order ◽  
Transition Metal Atoms ◽  
Medium Range ◽  
Three Dimensional Models ◽  
Co Alloys

AbstractA local short-to-intermediate range order of liquid Al80Co10Ni10, Al72.5Co14.5Ni13, and Al65Co17.5Ni17.5 alloys was examined by X-ray diffraction and the reverse Monte Carlo modelling. The comprehensive analysis of three-dimensional models of the liquid ternary alloys was performed by means of the Voronoi-Delaunay method. The existence of a prepeak on the S(Q) function of the liquid alloys is caused by medium range ordering of 3d-transition metal atoms in dense-packed polytetrahedral clusters at temperatures close to the liquidus. The non-crystalline clusters, represented by aggregates of pentagons that consist of good tetrahedra, and chemical short-range order lead to the formation of the medium range order in the liquid binary Al-Ni, Al-Co and ternary Al-Ni-Co alloys.

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