光散射学报, 2022, 34 (3): 249, 网络出版: 2023-02-04  

缔合液体声学及粘弹性质的布里渊散射测试

BrillouinScattering Measurement of the Acoustic and Viscoelastic Properties of Associated Liquids
作者单位
省部共建高品质特殊钢冶金与制备国家重点实验室、上海市钢铁冶金新技术开发应用重点实验室和上海大学材料科学与工程学院, 上海 200072
摘要
缔合液体是日常生活和工业生产过程中的常见媒介之一, 而声学和粘弹性质是其十分重要的基础性质之一。为此, 本文作者将布里渊散射测试方法用于纯水和甘油两种代表性缔合液体不同温度下的声学和粘弹性质的测试, 在180°背散射几何设置下测得了完整布里渊散射谱图。在构建系统理论描述的基础上, 计算获得了它们的声速、声吸收系数和剪切粘度等参数值, 从而进一步分析得到温度变化对液体材料声学性质及剪切粘度的影响。
Abstract
Associated liquids is a kind of common media in daily life and industrial production process, and their acoustic and viscoelastic properties are very important in many scenes. To this end, the Brillouin scattering spectroscopy is used to measure the acoustic and viscoelastic properties of two representative associative liquids, pure water and glycerol, at different temperatures. Complete spectra were obtained at 180° backscattering geometry. Based on a full theoretical description of the system, the acoustic absorption coefficient and shear viscosity were calculated, and the influence of temperature on those properties was further achieved.
参考文献

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陶倩, 包正平, 尤静林, 吴永全. 缔合液体声学及粘弹性质的布里渊散射测试[J]. 光散射学报, 2022, 34(3): 249. TAO Qian, BAO Zhengping, YOU Jinglin, WU Yongquan. BrillouinScattering Measurement of the Acoustic and Viscoelastic Properties of Associated Liquids[J]. The Journal of Light Scattering, 2022, 34(3): 249.

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