Cavicchi Richard E, Avedisian C Thomas
National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899, USA.
Phys Rev Lett. 2007 Mar 23;98(12):124501. doi: 10.1103/PhysRevLett.98.124501. Epub 2007 Mar 19.
Nanobubbles on a hydrophilic surface immersed in water and ethanol are inferred from the response of the surface to two consecutive heat pulses with a variable separation time. Bubble nucleation occurs at specific positions on the surface during the first heat pulse but at lower nucleation temperatures and random locations on the second. Nanobubbles are hypothesized to form on collapse of the bubble from the first pulse.
通过亲水表面对两个具有可变间隔时间的连续热脉冲的响应,推断出浸入水和乙醇中的亲水表面上的纳米气泡。在第一个热脉冲期间,气泡成核发生在表面的特定位置,但在第二个热脉冲时,成核温度较低且位置随机。据推测,纳米气泡是在第一个脉冲产生的气泡坍缩时形成的。