Design and realization of interface strengthening to GNPs/YSZ nanocomposite coating

Chenkun Sun, Hongzhi Ji, Liwei Guo, Xue Gong, Feifei Zhou, Wei Tian, Yiyong Wu, Xiaodong Zhang*, You Wang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

Interfacial strengthening of ceramic coatings on metal surfaces is a goal that has been pursued by researchers in this field, but remains unsolved. In this work, the interface strengthening between ceramic coating and metal substrate was designed and successfully realized. GNPs were modified with silica-sol at the molecular scale to disperse in YSZ uniformly and the GNPs/YSZ nanocomposite coatings with high bonding strength were produced due to in-situ generation of interfacial carbides. Results show that the bonding strength of 9 wt% GNPs/YSZ nanocomposite coating increased by up to ∼54% compared to nanostructured YSZ coating without NiCrAlY bond-coat, and even 17% higher than that of nanostructured conventional type YSZ coating with NiCrAlY bond-coat. This technique could be applied to reinforce the interface between various materials, showing great application potential.

Original languageEnglish
Pages (from-to)19624-19630
Number of pages7
JournalCeramics International
Volume49
Issue number12
DOIs
Publication statusPublished - 15 Jun 2023
Externally publishedYes

Keywords

  • Bonding strength
  • GNPs/YSZ nanocomposite Coating
  • Interface strengthening
  • Silica-sol

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