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 journal › peer-review
Author(s)
Detail(s)
| Original language | English |
|---|---|
| Pages (from-to) | 302-310 |
| Journal / Publication | Surface and Coatings Technology |
| Volume | 367 |
| Online published | 6 Apr 2019 |
| Publication status | Published - 15 Jun 2019 |
| Externally published | Yes |
Link(s)
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 journal › peer-review
