Abstract: A set of experimental data on the thermodynamic parameters of polymorphic transitions in the silica system is considered. Analysis of these parameters in dimensionless form is performed. A fundamental result of the analysis is that the thermodynamic parameters of all silica polymorphs after transitions are described by a single universal Hugoniot of polymorphic transition. It is shown that the two-shock model of polymorphic transformations proposed earlier by the author describes all the results obtained in the analysis. A joint consideration of the experimental data and model calculations leads to the conclusion that during a polymorphic transformation, the density of the new phase is determined from the condition that the elastic pressure components after the first shock and after the polymorphic transition are equal. Keywords: silica, quartz, coesite, stishovite, fused quartz, quartz ceramic, polymorphic transformation, similarity, Hugoniot.

Cite: Kinelovskii S.A.
Similarity between shock-induced polymorphic transitions in the silica system
Technical Physics. 2022. V.92. N6. P.695-701. DOI: 10.21883/TP.2022.06.54415.320-21 РИНЦ OpenAlex

Original: Кинеловский С.А.
Подобие ударно-волновых полиморфных переходов в системе кремнезема
Журнал технической физики. 2022. Т.92. №6. С.822-828. DOI: 10.21883/JTF.2022.06.52511.320-21 РИНЦ OpenAlex

Dates:

Submitted:	Dec 20, 2021
Accepted:	Mar 24, 2022

Identifiers:

Elibrary:	59586407
OpenAlex:	W4316335873

Citing:

DB	Citing
OpenAlex	3

Altmetrics: