Инд. авторы:	Kuryaeva R.G., Dmitrieva N.V.
Заглавие:	The position of silica glass in a series of compressibilities of silicate glasses in the pressure range up to 5•0 GPa
Библ. ссылка:	Kuryaeva R.G., Dmitrieva N.V. The position of silica glass in a series of compressibilities of silicate glasses in the pressure range up to 5•0 GPa // European Journal of Glass Science and Techology. Part B: Physics and Chemistry of Glasses. - 2016. - Vol.57. - Iss. 6. - P.272-278. - ISSN 1753-3562.
Внешние системы:	DOI: 10.13036/17533562.57.6.106; SCOPUS: 2-s2.0-85007240059; WoS: 000392256900005;
Реферат:	eng: Relative changes in the density, (d-d0)/d, of SiO2 glass in pressures up to 5•0 GPa were compared with the (d-d0)/d values of aluminosilicate and magnesium silicate glasses in the M2O(CaO)-Al2O3(MgO)-SiO2 system (M=Li, Na, K). It is shown that the silica glass is not the most highly compressible among the silicate glasses, as can be expected in the case of an ideal structure of SiO2 glass (the ideal structure of fused quart is characterized by the absence of nonbridging oxygen atoms in the fully polymerized structural network, NBO/T=0). The compressibility of silica glass is below that of aluminosilicate glasses with a high content of SiO2, such as KAlSi3O8 and NaAlSi3O8 glasses. This is related to the defect structure of SiO2 glass and the possible maintainance of abnormally high density of liquid silica in glass on cooling of the melt, due to its high viscosity.
Ключевые слова:	Structural networks; Silicate glass; Pressure ranges; Non-bridging oxygen atoms; Magnesium silicates; High-content; High viscosities; Glass; Silicates; Silica; Fused silica; Density of liquids; Defect density; Compressibility; Aluminosilicates; Aluminosilicate glass;
Издано:	2016
Физ. характеристика:	с.272-278