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Structure and Properties at the Ferroelectric/Electrode Interface between Lead Zirconate Titanate and Copper
Author(s) -
Cao Heng C.,
Graef Marc,
Evans Anthony G.
Publication year - 1993
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1993.tb06603.x
Subject(s) - materials science , lead zirconate titanate , ferroelectricity , microstructure , ceramic , electrode , copper , composite material , dielectric , optoelectronics , metallurgy , chemistry
In advanced actuator systems, ferroelectric ceramics are usually made into multilayered stacks to obtain optimum performance. This is done by interlacing noble metals (such as Pt/Pd) with ceramic green sheet and cofiring. The present study proposes an alternative, more economic electrode. Copper has been successfully diffusion bonded to several PZT‐based ferroelectric ceramics in a multilayer configuration. The microstructure and the relevant physical properties of the interfaces have been investigated. This has been achieved by using microscopy, as well as by mechanical and electrical characterization. These studies indicate that no reaction product forms at the interface and, furthermore, that the interface exhibits good cohesion.