Molten-Volcanic-Ash-Phobic Thermal Barrier Coating based on Biomimetic Structure.

ABSTRACT: Volcanic ash is a major threat to aviation safety. The softening/melting temperatures of volcanic ash lie far below typical aero-engine operating temperatures. Thus, molten ash can accelerate the failure of thermal barrier coatings (TBCs). Here, inspired by natural superhydrophobic surfaces (e.g., the lotus leaf), a molten-volcanic-ash-phobic TBC, which provides a large possibility to eliminate molten ash issues of TBCs, is developed. A hierarchically structured surface is first prepared on a (Gd_0.9 Yb_0.1 )₂ Zr₂ O₇ (GYbZ) pellet by ultrafast laser direct writing technology, aiming to confirm the feasibility of the biomimetic microstructure to repel molten volcanic ash wetting. Then biomimetic-structured GYbZ TBCs are successfully fabri

SUBMITTER: Guo Y 

PROVIDER: S-EPMC10074056 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature