Ultrasonic velocities in pure hydrocarbons and mixtures
Ultrasonic velocities in pure hydrocarbons and mixtures
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纯碳氢化合物和混合物中的超声波速度
DOI：
10.1121/1.400711
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发表时间：
1991
影响因子：
2.4
通讯作者：
A. Nur
中科院分区：
文献类型：
--
作者：
Zhijing Wang;A. Nur
采用超声波脉冲透射法，测量了正构烷烃、1-烯烃和环烷烃中的声速随温度的变化关系。测量的所有烃的速度随温度的升高近似线性地减小，尽管减小的速率对于不同的烃是不同的。数据还表明，具有较高碳含量的相同同系烃具有较高的体积模量（或较低的压缩模量），并且在这些纯烃的混合物中测量的速度V服从简单的物理混合定律V= Xi = 1 nXiVi，其中Xi是第i组分的体积分数，Vi是第i组分的速度。
Ultrasonic velocities were measured in hydrocarbons of n-alkanes, 1-alkenes, and naphthenes as a function of temperature, using the ultrasonic pulse transmission method. The velocities of all the hydrocarbons measured decrease with increasing temperature approximately linearly, although the rate of decrease is different for different hydrocarbons. The data also show that hydrocarbons of the same homologous series with higher carbon content have higher bulk moduli (or lower compressibilities) and the measured velocities V in mixtures of these pure hydrocarbons obey a simple physical mixing law V=Σi=1nXiVi, where Xi is the volume fraction and Vi is the velocity, respectively, of the ith component.