Abstract
Lead zirconate-titanate thick films of perovskite structure Pb(Zr0.52Ti0.48)O3 were fabricated on the curved surface of IN718 superalloy substrate using photochemical metal organic deposition technique. The films were heated at 200°C, irradiated by UV lamp (365nm, 6W) for 10min, pyrolyzed at 400°C, and subsequently annealed at 700°C for 1h after successive multi-step coating with 10wt.% excess PbO. Fairly smooth, dense, and crack-free polycrystalline thick films of Au/PZT/Au structure were deposited on IN718. The films were characterized to investigate the effect of photochemical deposition process and substrate on the crystalline, morphological, dielectric, ferroelectric and piezoelectric properties. Remanent polarization (Pr=20.2μC/cm2), coercive field (Ec=−10kV/cm), permittivity (εr=324@1kHz), dielectric loss (tanδ≈3%), and piezoelectric charge coefficient (d33=113.4pm/V) of the PZT thick film transducers were measured and interpreted as regards domain wall motions. Consequently, the photochemical grown lead zirconate-titanate thick film on the superalloy substrate IN718 was confirmed to be consistent to structural health monitoring due to its acceptable electrical response.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
