Superhydrophilic surface on Cu substrate to enhance lubricant retention

作者：Morehead Julius; Zou Min^*

来源：Journal of Adhesion Science and Technology, 2014, 28(8-9): 833-842.

DOI：10.1080/01694243.2012.697751

• aluminum-induced crystallization
• amorphous silicon
• superhydrophilicity
• lubricant retention
• Cu substrate

The loss of lubricant from the surfaces of critical machine parts often leads to friction and heat-related failures which can cause catastrophic damage to machinery. In this study, the effect of micro- and nano-texturing on lubricant retention was investigated. Micro-textures were produced by sandblasting Cu substrates, while nano-textures were created by aluminum-induced crystallization of amorphous silicon. The topography and the wettability of the textured surfaces were characterized by means of scanning electron microscopy and a video-based optical contact angle measuring system, respectively. The lubricant retention on the textured surfaces was investigated using a dynamic method. It was found that superhydrophilic surfaces created by the combined micro- and nano-texturing technique can significantly enhance the lubricant retention on Cu substrates.

• 出版日期2014-4-18