Insights into the self-optimized hydrophobicity of cerium oxide surface under impact abrasive wear

Zhaoqian Li, Jie Wang, Tengfeng He, Junpeng Liu, Dongdong Hao, Xianghui Hou

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Cerium oxide (CeO2) is one of potential candidates of hydrophobic coatings servicing in harsh environments. In this letter, abraded CeO2 surface was prepared using sandblasting treatment to investigate the wetting mechanism under the condition of impact abrasive wear. The water contact angle (WCA) of the abraded surface increased from 62.8° to 93.7° after aging in ambient air for about 700 h. The hydrophobic self-optimisation mechanism of the abraded CeO2 surface is due to the hierarchical structure formed during impact abrasive wear and the surface adsorption of airborne hydrocarbon, resulting the wetting state changed from “Wenzel state” to “Cassie-Baxter State”.

Original languageEnglish
Title of host publicationMetallurgy Technology and Materials VIII - Selected peer-reviewed full text papers from the 8th International Conference on Metallurgy Technology and Materials, ICMTM 2020
EditorsNor Sabirin Mohamed
PublisherTrans Tech Publications Ltd
Pages109-113
Number of pages5
ISBN (Print)9783035737004
DOIs
StatePublished - 2021
Externally publishedYes
Event8th International Conference on Metallurgy Technology and Materials, ICMTM 2020 - Xian, China
Duration: 1 Aug 20202 Aug 2020

Publication series

NameSolid State Phenomena
Volume315 SSP
ISSN (Print)1012-0394
ISSN (Electronic)1662-9779

Conference

Conference8th International Conference on Metallurgy Technology and Materials, ICMTM 2020
Country/TerritoryChina
CityXian
Period1/08/202/08/20

Keywords

  • Cerium oxide
  • Hydrophobic
  • Self-optimisation
  • Wettability
  • XPS

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