TY - JOUR
T1 - Pressure dependence of the elastic moduli of glasses in the K2OSiO2 system
AU - Gamberg, E.
AU - Uhlmann, D. R.
AU - Chung, D. H.
N1 - Funding Information:
Financial support for the present work was provided by the National Science Foundation. This support is gratefully acknowledged.
PY - 1974/3
Y1 - 1974/3
N2 - The elastic moduli and their variation with pressure have been determined for three glass compositions in the K2OSiO2 glass system. The results may be summarized: {A table is presented}. Additionally, the heat capacities of the three compositions were determined over the temperature range of 320 to 700 K, and were used together with the other data to evaluate the thermal Grüneisen ratios. This parameter was found to increase with increasing K2O concentration, with values of 0.48, 0.63 and 0.69 for the three compositions indicated above. For comparison, the acoustic Grüneisen ratios evaluated from the variation of the moduli with pressure were found to be negative and also to increase with increasing K2O concentration.
AB - The elastic moduli and their variation with pressure have been determined for three glass compositions in the K2OSiO2 glass system. The results may be summarized: {A table is presented}. Additionally, the heat capacities of the three compositions were determined over the temperature range of 320 to 700 K, and were used together with the other data to evaluate the thermal Grüneisen ratios. This parameter was found to increase with increasing K2O concentration, with values of 0.48, 0.63 and 0.69 for the three compositions indicated above. For comparison, the acoustic Grüneisen ratios evaluated from the variation of the moduli with pressure were found to be negative and also to increase with increasing K2O concentration.
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U2 - 10.1016/0022-3093(74)90003-9
DO - 10.1016/0022-3093(74)90003-9
M3 - Article
AN - SCOPUS:0016035920
SN - 0022-3093
VL - 13
SP - 399
EP - 408
JO - Journal of Non-Crystalline Solids
JF - Journal of Non-Crystalline Solids
IS - 3
ER -