The Second and Third Virial Coefficients of 3He from 3.3 K to 13 K from Experimental Data

被引：0
|
作者：
Kohei Tada
机构：
[1] Kyoto University,Graduate School of Engineering
[2] Kyoto University,Division for Low Temperature and Materials Sciences
来源：
International Journal of Thermophysics | 2021年 / 42卷
关键词：
Helium-3; Virial equation of state; Density virial coefficients; Acoustic virial coefficients;
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摘要：
The second and third density virial coefficients, B and C, of helium-3 (3He) are determined in the temperature range from 3.3 K to 13 K based on the analysis of experimental thermophysical data. The empirically fitted equations of B and C are obtained, which enable us to calculate the second and third acoustic virial coefficients, βa and RTγa, of 3He in the same temperature range. This study provides the first experiment-based values of βa and RTγa from 3.75 K to 13 K. The obtained density and acoustic virial coefficients of 3He are compared with previous experimental and theoretical studies.
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