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Damage Behavior of Air‐Plasma‐Sprayed Thermal Barrier Coatings under Foreign Object Impact
Author(s) -
Dericioglu A.F.,
Zhu S.,
Kagawa Y.,
Kasano H.
Publication year - 2003
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.200300386
Subject(s) - materials science , thermal barrier coating , projectile , composite material , coating , ceramic , thermal , plasma , cross section (physics) , deformation (meteorology) , forensic engineering , metallurgy , engineering , physics , quantum mechanics , meteorology
How do thermal barrier coatings react to the impact of a foreign object? The authors examined the damage done by a projectile to an air‐plasma‐sprayed coating system. Apart from permanent deformation, chipping of the ceramic top coat around the impression sites occurs at impact velocities above 150 m s –1 . At increasing impact speed, the cracks in the top coat tend to elongate and result in coating removal (see Figure for a cross‐section).