Damping properties of epoxy-based composite embedded with sol-gel-derived Pb(Zr 0·53Ti 0·47)O 3 thin film with different thicknesses

Abstract

Pb(Zr 0·53Ti 0·47)O 3 (PZT) thin films were prepared on Pt/Ti/SiO 2/Si substrate by sol-gel method. The effect of film thickness on microstructure, ferroelectric and dielectric properties was investigated. The single-phase PZT films were obtained with different thicknesses. PZT films with a thickness of 190-440 nm had better dielectric and ferroelectric properties. The epoxy/PZT film/epoxy sandwiched composites were prepared. The thickness of PZT films influenced their damping properties of the composites, and the epoxy-based composites embedded with 310 nm-thick PZT films had the largest damping loss factor of 0middot;915. © Indian Academy of Sciences.