Equation of state for fluid helium-3 based on Debye phonon model
Equation of state for fluid helium-3 based on Debye phonon model
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DOI：
10.1063/1.2178867
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发表时间：
2006-02
影响因子：
4
通讯作者：
Yonghua Huang;Guo-bang Chen;V. Arp
中科院分区：
文献类型：
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作者：
Yonghua Huang;Guo-bang Chen;V. Arp
用Helmholtz势函数建立了He 3的状态方程。它是基于德拜声子模型，该模型在零温度的极限下平稳地趋于零，在零密度和/或很高温度的极限下约化为理想气体。方程的温度下限为10 mK，安全地高于2.6mK的超流转变。60 K的上限大约是可用的He 3性质测量的上限。该方程适用的压力范围为0 ~ 15 MPa。状态属性由标准热力学从亥姆霍兹能量确定。
An equation of state for He3 using the Helmholtz potential function has been developed. It is based on the Debye phonon model which goes smoothly to zero in the limit of zero temperature, and reduces to the ideal gas in the limit of zero density and/or very high temperature. The lower temperature limit of the equation 10mK is safely above the superfluid transition at 2.6mK. The upper limit of 60K is approximately the upper limit of available He3 properties measurements. The certain pressure range of validity of the equation is from about 0 to the melting pressure or 15MPa. State properties are determined from the Helmholtz energy by standard thermodynamics.