Experimental Study on nanobubbles at heating surface

2015 Fiscal Year Final Research Report

• Project/Area Number: 25420164
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Thermal engineering
• Research Institution: Kyushu University
• Principal Investigator: Nishiyama Takashi 九州大学, 工学(系)研究科(研究院), 助教 (80363381)
• Co-Investigator(Kenkyū-buntansha): TAKAHASHI Koji 九州大学, 大学院工学研究院, 教授 (10243924)
• Co-Investigator(Renkei-kenkyūsha): TAKATA Yasuyuki 九州大学, 大学院工学研究院, 教授 (70171444)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: ナノバブル / 固液界面 / 原子間力顕微鏡

Outline of Final Research Achievements

Interfacial nanobubble is very thin vapor phase that exists at solid-liquid interface, was investigated using an atomic force microscope. Nanobubbles at the solid-liquid interface might contribute to the boiling initial bubble formation, however, often have questions such as in its stability. In this study, generation of nanobubbles is not determined only by the hydrophobicity of the surface, it was found that the presence of hydrophilic domains on the hydrophobic surface are affecting the nanobubbles. These results indicated that a possibility to control the nanobubbles by hydrophobic-hydrophilic combination surface.

Free Research Field

熱物理学、ナノバブル