Journal of Materials Science

, Volume 42, Issue 22, pp 9491–9494 | Cite as

Laser nanostructuring of EB-PVD thermal barrier coatings for ultra-low thermal conductivity

  • Pal MolianEmail author

In recent years, there are serious efforts to reduce thermal conductivity of thermal barrier coatings (TBC) in order to (i) improve the TBC durability, reduce the metal temperature, and retard the thermally-induced failure; (ii) improve engine efficiency by allowing it to operate at higher temperatures; and (iii) allow designers to reduce the TBC thickness and thereby decrease the significant centrifugal load that the mass of the TBCs imposes on the rotating turbine engine components [1, 2]. Nanoparticle structuring of TBC has the potential to offer ultra-low thermal conductivity in addition to providing other desirable properties such as low density, high thermal expansion, high strength, and high toughness. Hence, in this study, an array of thermally stable, uniform nanoparticles, and nanoporous structures (<100 nm) in electron beam-deposited TBC coatings were synthesized by the use of femtosecond laser irradiation followed by a dip in nanostabilizing-slurry. In addition, the effect...


Fume Silica Thermal Barrier Coating Recast Layer Coulomb Explosion Thermal Barrier Coating 


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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  1. 1.Department of Mechanical Engineering, Laboratory for Lasers, MEMS and NanotechnologyIowa State UniversityAmesUSA

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