Fictive temperature and medium range order in silicate glasses: a relationship between heat capacity and boson peak

1998 ◽  
Vol 77 (2) ◽  
pp. 663-669 ◽  
Author(s):  
B. Champagnon, C. Chemarin, P. Richet
Keyword(s):  
Heat Capacity ◽  
Boson Peak ◽  
Range Order ◽  
Silicate Glasses ◽  
Fictive Temperature ◽  
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.

Investigation of medium range order in silicate glasses by infrared spectroscopy

2013 ◽  
Vol 65 ◽  
pp. 50-57 ◽  
Author(s):  
Domingos De Sousa Meneses ◽  
Myriam Eckes ◽  
Leire del Campo ◽  
Cristiane N. Santos ◽  
Yann Vaills ◽  
...  
Keyword(s):  
Infrared Spectroscopy ◽  
Range Order ◽  
Silicate Glasses ◽  
Medium Range Order ◽  
Medium Range

Effect of fictive temperature on medium range order in v-SiO2

1997 ◽  
Vol 216 ◽  
pp. 111-115 ◽  
Author(s):  
C. Chemarin ◽  
B. Champagnon ◽  
G. Panczer
Keyword(s):  
Range Order ◽  
Fictive Temperature ◽  
Medium Range Order ◽  
Medium Range

Medium range order around cations in silicate glasses

1996 ◽  
Vol 128 (1-4) ◽  
pp. 77-91 ◽  
Author(s):  
L. Cormier ◽  
S. Creux ◽  
L. Galoisy ◽  
G. Calas ◽  
Ph. Gaskell
Keyword(s):  
Range Order ◽  
Silicate Glasses ◽  
Medium Range Order ◽  
Medium Range

A medium range order structural connection to the configurational heat capacity of borate–silicate mixed glasses

2016 ◽  
Vol 18 (16) ◽  
pp. 10887-10895 ◽  
Author(s):  
Hao Liu ◽  
Morten M. Smedskjaer ◽  
Haizheng Tao ◽  
Lars R. Jensen ◽  
Xiujian Zhao ◽  
...  
Keyword(s):  
Heat Capacity ◽  
Composition Dependence ◽  
Range Order ◽  
Medium Range Order ◽  
Intermediate Range ◽  
Intermediate Range Order ◽  
Medium Range ◽  
Mixed Glasses ◽  
Structural Connection

Intermediate range order (IRO) structures have a major impact on the composition dependence of the configurational heat capacity of glass.

Sign in / Sign up

Export Citation Format

Share Document