Mitigation of thermal and fatigue behavior in K0.5 Na0.5 Nb O3 -based lead free piezoceramics

Shujun Zhang; Ru Xia; Hua Hao; Hanxing Liu; Thomas R. Shrout

doi:10.1063/1.2908960

Mitigation of thermal and fatigue behavior in K0.5 Na0.5 Nb O3 -based lead free piezoceramics

Shujun Zhang, Ru Xia, Hua Hao, Hanxing Liu, Thomas R. Shrout

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

161 Citations (Scopus)

Abstract

K0.5 Na0.5 Nb O3 - (KNN) based lead free materials have been found to exhibit good piezoelectric properties (d33 ∼250 pCN) due to the orthorhombic-tetragonal polymorphic phase transition (PPT) temperature compositionally shifted downward to near room temperature. However, associated with the PPT are issues of temperature and domain instability, making them impractical for applications. In this work, CaTi O3 (CT) was used to effectively shift the PPT downward in effort to mitigate these issues. As expected, CT modified KNN based materials exhibited nearly temperature independent properties (-50∼200 °C) and fatigue-free behavior, together with its relatively high d33 value of ∼200 pCN, make the CT modified KNN based materials excellent candidates for lead free actuators and transducers. © 2008 American Institute of Physics.

Original language	English
Article number	152904
Journal	Applied Physics Letters
Volume	92
Issue number	15
DOIs	https://doi.org/10.1063/1.2908960
Publication status	Published - 2008
Externally published	Yes

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Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to <a href="mailto:[email protected]">[email protected]</a>.

Funding

This work was supported by the ONR and NIH under No. P41-RR11795.

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title = "Mitigation of thermal and fatigue behavior in K0.5 Na0.5 Nb O3 -based lead free piezoceramics",

abstract = "K0.5 Na0.5 Nb O3 - (KNN) based lead free materials have been found to exhibit good piezoelectric properties (d33 ∼250 pCN) due to the orthorhombic-tetragonal polymorphic phase transition (PPT) temperature compositionally shifted downward to near room temperature. However, associated with the PPT are issues of temperature and domain instability, making them impractical for applications. In this work, CaTi O3 (CT) was used to effectively shift the PPT downward in effort to mitigate these issues. As expected, CT modified KNN based materials exhibited nearly temperature independent properties (-50∼200 °C) and fatigue-free behavior, together with its relatively high d33 value of ∼200 pCN, make the CT modified KNN based materials excellent candidates for lead free actuators and transducers. {\textcopyright} 2008 American Institute of Physics.",

author = "Shujun Zhang and Ru Xia and Hua Hao and Hanxing Liu and Shrout, {Thomas R.}",

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AU - Zhang, Shujun

AU - Xia, Ru

AU - Hao, Hua

AU - Liu, Hanxing

AU - Shrout, Thomas R.

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to <a href="mailto:[email protected]">[email protected]</a>.

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AB - K0.5 Na0.5 Nb O3 - (KNN) based lead free materials have been found to exhibit good piezoelectric properties (d33 ∼250 pCN) due to the orthorhombic-tetragonal polymorphic phase transition (PPT) temperature compositionally shifted downward to near room temperature. However, associated with the PPT are issues of temperature and domain instability, making them impractical for applications. In this work, CaTi O3 (CT) was used to effectively shift the PPT downward in effort to mitigate these issues. As expected, CT modified KNN based materials exhibited nearly temperature independent properties (-50∼200 °C) and fatigue-free behavior, together with its relatively high d33 value of ∼200 pCN, make the CT modified KNN based materials excellent candidates for lead free actuators and transducers. © 2008 American Institute of Physics.

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DO - 10.1063/1.2908960

M3 - RGC 21 - Publication in refereed journal

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SN - 0003-6951

VL - 92

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 15

M1 - 152904

ER -

Mitigation of thermal and fatigue behavior in K0.5 Na0.5 Nb O3 -based lead free piezoceramics

Abstract

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