Infrared absorption spectra of sodium silicate glasses at high pressures
Инфракрасные спектры поглощения натриевых силикатных стекол при высоких давлениях
1972-11-01
SCID: 54.1/5ffu3pka
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Grüneisen parameterhigh pressure (to 58.8 kbar)infrared absorption spectrapressure dependence of infrared frequenciessodium silicate glasses
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Abstract (AI)
Infrared absorption spectra of 12 sodium silicate glasses of varying composition (10 to 45 mole% Na2O) are examined at varying pressures to 58.8 kbar. The pressure dependences of all the infrared absorption frequencies studied are found to be positive. Grüneisen γ's are evaluated from the pressure dependence of the infrared vibrations and elastic parameters. The results are compared with those obtained from previous high-pressure studies of α-quartz and several other silicate glasses.
Key Findings
1
All studied infrared absorption frequencies show positive pressure dependence across the investigated pressure range.
2
Grüneisen parameters (γ) were calculated from the pressure dependence of infrared vibrations and elastic parameters.
3
Infrared absorption spectra were measured for 12 sodium silicate glasses (10–45 mol% Na2O) up to 58.8 kbar.
4
Results were compared with previous high-pressure data for α-quartz and other silicate glasses, implying comparative analysis of pressure response.
Research Object
Twelve sodium silicate glasses (10–45 mol% Na2O) subjected to high pressures up to 58.8 kbar
Research Subject
Pressure dependence of infrared absorption frequencies and derived Grüneisen parameters (from infrared vibrations and elastic parameters) in these sodium silicate glasses
Publication Details
Publication Date
1972-11-01
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