Local structure of polyethylene melt studied by pulsed neutron total scattering

1991 ◽  
Vol 94 (12) ◽  
pp. 8413-8419 ◽  
Author(s):  
M. Misawa ◽  
T. Kanaya ◽  
T. Fukunaga
Keyword(s):  
Local Structure ◽  
Total Scattering ◽  
Polyethylene Melt ◽  
Pulsed Neutron ◽  
Neutron Total Scattering

scholarly journals Structural Analysis of Na2O-B2O3 Melts by Pulsed Neutron Total Scattering Method and Molecular Dynamics Simulation.

1993 ◽  
Vol 33 (1) ◽  
pp. 188-194 ◽  
Author(s):  
Yoshifumi Kita ◽  
Masakatsu Misawa ◽  
Norimasa Umesaki ◽  
Tadashi Kirihara ◽  
Toshiharu Fukunaga ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulation ◽  
Structural Analysis ◽  
Dynamics Simulation ◽  
Scattering Method ◽  
Total Scattering ◽  
Pulsed Neutron ◽  
Neutron Total Scattering

Total scattering studies of silica polymorphs: similarities in glass and disordered crystalline local structure

2000 ◽  
Vol 64 (3) ◽  
pp. 447-457 ◽  
Author(s):  
D. A. Keen ◽  
M. T. Dove
Keyword(s):  
Local Structure ◽  
Glass Structure ◽  
Quantitative Comparison ◽  
Crystalline Phases ◽  
Total Scattering ◽  
Disordered Structure ◽  
Scattering Measurements ◽  
Crystalline Forms ◽  
Short Range Correlations ◽  
Neutron Total Scattering

AbstractThe structure of amorphous silica has frequently been compared with its crystalline counterparts in an attempt to understand the glass structure beyond short-range correlations. This paper presents results from neutron total scattering measurements of several polymorphs of silica and shows how these can be used to make a direct, quantitative comparison of amorphous and crystalline forms. It is found that the glass is similar to HP-tridymite and β-cristobalite, both dynamically-disordered crystalline phases of silica, but only out to distances ∼7.5 Å, beyond which the structures diverge. This is too small to validate a microcrystallite theory of glass structure. It is the average 180° Si–O–Si linkage in these two crystalline phases which gives them the flexibility for their instantaneous disordered structure to resemble the quenched (static) glass structure.

scholarly journals The local structure of ice VII determined by neutron total scattering

2005 ◽  
Vol 61 (a1) ◽  
pp. c94-c94 ◽  
Author(s):  
M. Guthrie ◽  
C. L. Bull ◽  
R. J. Nelmes ◽  
J. S. Loveday ◽  
T. Strässle ◽  
...  
Keyword(s):  
Local Structure ◽  
Total Scattering ◽  
Neutron Total Scattering
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