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Dynamics of Compressed and Stretched Liquid SiO2, and the Glass Transition

Published online by Cambridge University Press:  25 February 2011

C. A. Angell ,
P. A. Cheeseman  and
C. C. Phifer
C. A. Angell
Affiliation:
Department of Chemistry, Purdue UniversityWest Lafayette, IN 47907
P. A. Cheeseman
Affiliation:
Department of Chemistry, Purdue UniversityWest Lafayette, IN 47907
C. C. Phifer
Affiliation:
Department of Chemistry, Purdue UniversityWest Lafayette, IN 47907
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Abstract

Ion dynamics simulations are presented to model the system SiO2 over wide ranges of temperature and density as it passes from liquid into glassy states. Essential features of the diffusive mechanism by means of which the system configuration space is explored are examined in relation to density and structure. The presence of a water-like density maximum in the liquid state of this system is established by using the negative pressure regime to stretch the system and thereby sharpen the phenomenon.

Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 63: Symposium R – Computer-Based Microscopic Description of the Structure and Properties of Materials , 1985 , 85
Copyright
Copyright © Materials Research Society 1986

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References

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