Structural-property relations in a reduced and internally biased oxide wafer (RAINBOW) actuator material

Catherine Elissalde; L. Eric Cross; Clive A. Randall

doi:10.1111/j.1151-2916.1996.tb08935.x

Structural-property relations in a reduced and internally biased oxide wafer (RAINBOW) actuator material

Catherine Elissalde, L. Eric Cross, Clive A. Randall

Research output: Contribution to journal › Article

36 Scopus citations

Abstract

Reduced and internally biased oxide wafer (RAINBOW) actuators are fabricated by a controlled reduction of Pb(Zr,Ti)O₃-based piezoelectric material. The reduction process results in a conductive layer composed of an interconnected metallic lead phase and refractory oxides (ZrTiO₄, ZrO₂, La₂O₃, etc.). The nature of the reduction is discovered to be the result of a complex volume change leading to a nanoscale interconnected metallic structure. The distribution of phases within the cermet vary within the thickness of the wafer. Within the piezoelectric ceramic phase, the reduction process modifies the grain-boundary structure to give two distinct types of fracture: transgranular and intergranular. The complexed microstructures of the RAINBOW actuator materials are discussed in relation to their dielectric and piezoelectric properties.

Original language	English (US)
Pages (from-to)	2041-2048
Number of pages	8
Journal	Journal of the American Ceramic Society
Volume	79
Issue number	8
DOIs	https://doi.org/10.1111/j.1151-2916.1996.tb08935.x
State	Published - Jan 1 1996

All Science Journal Classification (ASJC) codes

Ceramics and Composites
Geology
Geochemistry and Petrology
Materials Chemistry

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10.1111/j.1151-2916.1996.tb08935.x

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Elissalde, C., Cross, L. E., & Randall, C. A. (1996). Structural-property relations in a reduced and internally biased oxide wafer (RAINBOW) actuator material. Journal of the American Ceramic Society, 79(8), 2041-2048. https://doi.org/10.1111/j.1151-2916.1996.tb08935.x

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