Oxygen vacancy induced superhydrophobicity of air plasma spraying deposited Y2O3 coatings

Dong Wang, Qi Zhang, Yueze Zhen, Feihan Xu, Zhuang Ma, Lihong Gao, Yanbo Liu, Ling Liu*, Xinchun Tian

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Air plasma spraying (APS) is widely used for preparing superhydrophobic rare earth oxide (SH-REO) coatings due to its advantages of capable for large-scale and fast deployment with low cost. However, the origin of the superhydrophobicity remains unclear, which has impeded the design and development of robust APS-deposited SH-REO coatings. In this work, by studying APS-deposited superhydrophobic yttrium oxide (SH-Y2O3) coatings, we found a close correlation between oxygen vacancy and surface adsorbed species. Our results suggest that oxygen vacancy introduced during APS makes the Y2O3 surface liable to the adsorption of nonpolarized, hydrocarbon molecules, which contributes to a low-energy surface. Therefore, we showed the crucial role of oxygen vacancy in the acquirement of reliable SH-REO coatings.

Original languageEnglish
Article number116871
JournalJournal of the European Ceramic Society
Volume45
Issue number1
DOIs
Publication statusPublished - Jan 2025

Keywords

  • Air plasma spraying
  • Oxygen vacancy
  • Rare earth oxide
  • Superhydrophobic coatings

Fingerprint

Dive into the research topics of 'Oxygen vacancy induced superhydrophobicity of air plasma spraying deposited Y2O3 coatings'. Together they form a unique fingerprint.

Cite this