National Institute of Advanced Industrial Science and Technology (AIST), Moriyama, Nagoya 463-8560, Japan.
National Institute of Advanced Industrial Science and Technology (AIST), Moriyama, Nagoya 463-8560, Japan.
Ultrason Sonochem. 2022 Aug;88:106084. doi: 10.1016/j.ultsonch.2022.106084. Epub 2022 Jul 3.
Ultrasonic impregnation is thought to be an effective way of permeation of liquid into material through the material-surface reforming with the attack by an ultrasonic cavitation jet or by the shock wave emitted from a collapsing bubble, or through dynamic transformation of material like a sponge. The action of a cavitation bubble can also provide penetration of liquid into the interior of the material. This paper investigates whether there is a correlation between the intensity of sonoluminescence (SL) measured at different positions and the increment in the mass of the wood material (cedar) after sonication with immersion into water in order to clarify the role of cavitation bubbles for ultrasonic impregnation. It was found that a high mass change was obtained for the material located at the position for high (the maximum) SL intensity. The number density of ultrasonic cavitation bubbles that are able to collapse leading to the emission of SL is correlated with the degree of ultrasonic impregnation.
超声浸渍被认为是一种有效的方法，通过超声空化射流或由塌缩气泡发射的冲击波对材料表面进行改性，或者通过材料的动态变形（如海绵），使液体渗透到材料中。空化泡的作用还可以提供液体进入材料内部的渗透。本文研究了在不同位置测量的声致发光（SL）强度与浸入水中超声处理后木材材料（雪松）质量增加之间是否存在相关性，以阐明空化泡在超声浸渍中的作用。结果发现，位于 SL 强度最高位置的材料的质量变化较大。能够导致 SL 发射的超声空化泡的数密度与超声浸渍的程度相关。
