Ablation behaviors of Ir–Al intermetallic coatings in a plasma wind tunnel

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

3 Scopus Citations
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Author(s)

  • Yuanlin Ai
  • Shuxin Bai
  • Li'an Zhu
  • Yicong Ye
  • Hong Zhang
  • Shun Li
  • Yu Tang
  • Ruixin Wang

Detail(s)

Original languageEnglish
Pages (from-to)302-310
Journal / PublicationSurface and Coatings Technology
Volume367
Online published6 Apr 2019
Publication statusPublished - 15 Jun 2019
Externally publishedYes

Abstract

The ablation behaviors of an as-annealed aluminized Ir (IrAl/Ir) coating sample and two aluminized Ir (IrAl 2.7(3) /IrAl/Ir) coating samples were investigated in a plasma wind tunnel for up to 2000s. The IrAl/Ir and IrAl 2.7(3) /IrAl/Ir coating samples showed quite different thermal responses, with ablation resistance limits of ~3.35 MW/m2 and ~3.75 MW/m2 , respectively, due to their different oxidation mechanisms. The failure mechanisms of both Ir–Al intermetallic coating samples were closely related to the melting of Al2 O3 coating due to over-temperature. The results indicated that the Ir–Al is a promising non-ablative thermal protection coating material used in non-equilibrium oxidizing environment up to 2000 °C.

Research Area(s)

  • Ablation resistance, Intermetallic coating, Oxidation, Plasma wind tunnel

Citation Format(s)

Ablation behaviors of Ir–Al intermetallic coatings in a plasma wind tunnel. / Ai, Yuanlin; Bai, Shuxin; Zhu, Li'an; Ye, Yicong; Zhang, Hong; Li, Shun; Tang, Yu; Zhang, Kaili; Wang, Ruixin.

In: Surface and Coatings Technology, Vol. 367, 15.06.2019, p. 302-310.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review