Materials synthesis in a bubble
Materials synthesis in a bubble
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DOI：
10.1557/mrs.2019.107
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发表时间：
2019-05-01
期刊：
影响因子：
5
通讯作者：
Vogel, Alfred
中科院分区：
文献类型：
--
作者：
Barcikowski, Stephan;Plech, Anton;Vogel, Alfred
超声声化学和液体中的脉冲激光烧蚀（LAL）是用于材料合成的现代技术，其以不同的方式与空化气泡的形成和破裂相关联。我们提供了一个概述的激光诱导和声学驱动的气泡振荡的物理，然后描述如何与烧蚀和气泡崩溃，以及发射的冲击波，高压和温度参与材料合成内部和周围的气泡。重点放在声化学合成和修改的机制，并在一步一步的帐户的事件，从激光烧蚀通过相互作用的烧蚀产物与周围的液体的修改或聚集的气泡内的颗粒。声化学和LAL都产生具有独特性质的纳米结构材料和胶体纳米颗粒。合成工艺已被证明是可扩展的。
Ultrasonic sonochemistry and pulsed laser ablation in liquids (LAL) are modern techniques for materials synthesis that are in different ways linked to the formation and collapse of cavitation bubbles. We provide an overview of the physics of laser-induced and acoustically driven bubble oscillations and then describe how the high pressures and temperatures associated with ablation and bubble collapse, as well as emitted shock waves, take part in material synthesis inside and around the bubble. Emphasis is placed on the mechanisms of sonochemical synthesis and modification, and on a step-by-step account of the events from laser ablation through interaction of ablation products with the surrounding liquid up to the modification or aggregation of particles within the bubble. Both sonochemistry and LALs yield nanostructured materials and colloidal nanoparticles with unique properties. The synthesis process has been demonstrated to be scalable.