In-situ coating wear condition monitoring based on solid-liquid triboelectric nanogenerator and its mechanism study

• DOI: 10.1016/j.nanoen.2023.108479
• Publication Date: 2023-04-25T01:19:05Z
• Authors: Di Wang; Jun Zhao; Fan Zhang; Per Claesson; Jinshan Pan; Yijun Shi
• Keywords: Nanogenerator

Various more or less wear-resistant coatings have been developed and used to protect metal substrates. However, the damage caused by wear is still a problem for most coatings. It of great importance monitor in real-time during applications. Recently reported monitoring methods (image processing, luminescent layers use sensing underlayer) require complex external equipment additional coating preparation process steps, which limit their As an emerging technology, triboelectric nanogenerator (TENG) can convert mechanical energy into electricity, it has applied as self-powered sensor. In this study, new method based on solid-liquid TENG. The TENG generates electric signals corresponding different states, facilitates easy coating's conditions. results show that surface composition change main reason affecting signal output. coating-liquid contact-separation motion output directly reflect states without need any equipment. This study provides promising technology in-situ monitoring.