Sound Velocity and Equation of State of Ballistic Gelatin by Brillouin Scattering

被引:2
|
作者
Ahart, Muhtar [1 ]
Hemley, Russell J. [1 ,2 ,3 ]
机构
[1] Univ Illinois, Dept Phys, Chicago, IL 60607 USA
[2] Univ Illinois, Dept Chem, Chicago, IL 60607 USA
[3] Univ Illinois, Dept Earth & Environm Sci, Chicago, IL 60607 USA
关键词
Brillouin scattering; equation of state; ballistic gelatin; high-pressure; AQUEOUS-SOLUTIONS; LIQUID; COMPRESSIBILITY; BEHAVIOR; LIGHT; WATER; GLASS;
D O I
10.3390/ma16031279
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Brillouin scattering spectroscopy with diamond anvil cells was used by measuring the pressure dependence of the sound-relevant polymer material, glass-forming liquid, and H2O (water and ice VII) velocities of the material from ambient pressure to 12 GPa at room temperature. Measurements of 20%, 10%, and 4% gelatin solutions were performed. For comparison purposes, we also measured the pressure dependence of the sound velocity of animal tissue up to 10 GPa. We analyzed the Brillouin data using the Tait and Vinet equations of state. We discussed the possible influence of frequency dispersion on bulk modulus at low pressure. We compared the elastic moduli obtained for gelatin to those of several other polymers.
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页数:15
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