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Relaxation aspects of the liquid—glass transition

 a,  b, c
a Buryat State University, Smolina st. 24a, Ulan-Ude, 670000, Russian Federation
b Lomonosov Moscow State University, Vorobevy Gory, Moscow, 119991, Russian Federation
c Imperial College London, Prince Consort Road, London, SW7 2AZ, United Kingdom

Relaxation theories of the glass transition and viscous flow of glass-forming melts are presented. The main attention is devoted to modern representations of the glass transition equation qτg = δTg determining the appearance of a glassy state during cooling. Here, q=d T/dt is the temperature change rate during melt cooling and τg is the relaxation time at the glass transition temperature Tg. Various methods for calculating the characteristic temperature band δ Tg during the liquid—glass transition are considered. The generalized equation for the dependence of Tg on the melt cooling rate is derived. Based on the model of delocalized atoms, the modified kinetic glass transition criterion is discussed. The generalized viscosity equation for glass-forming liquids is derived.

Fulltext pdf (823 KB)
Fulltext is also available at DOI: 10.3367/UFNe.2018.04.038319
Keywords: glass transition, amorphous polymers, inorganic glasses, metal amorphous melts, glass transition equation, viscosity, glass transition criterion, relaxation theories
PACS: 61.43.Gt, 64.70.Q−, 81.05.kf (all)
DOI: 10.3367/UFNe.2018.04.038319
URL: https://ufn.ru/en/articles/2019/2/a/
000466030200001
2-s2.0-85067549795
2019PhyU...62..111S
Citation: Sanditov D S, Ojovan M I "Relaxation aspects of the liquid—glass transition" Phys. Usp. 62 111–130 (2019)
BibTexBibNote ® (generic)BibNote ® (RIS)Medline RefWorks
RT Journal
T1 Relaxation aspects of the liquid—glass transition
A1 Sanditov,D.S.
A1 Ojovan,M.I.
PB Physics-Uspekhi
PY 2019
FD 10 Feb, 2019
JF Physics-Uspekhi
JO Phys. Usp.
VO 62
IS 2
SP 111-130
DO 10.3367/UFNe.2018.04.038319
LK https://ufn.ru/en/articles/2019/2/a/

Received: 17th, January 2018, revised: 27th, March 2018, 11th, April 2018

Оригинал: Сандитов Д С, Ожован М И «Релаксационные аспекты перехода жидкость—стекло» УФН 189 113–133 (2019); DOI: 10.3367/UFNr.2018.04.038319

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