Ferroelectric Fatigue of KNN Ceramics

B. Tah; S. Goswami; T. Dasgupta; J. Bera; P. Sinha; D. Kundu; S. Sen; A. Sen

doi:10.1080/00150193.2015.1051446

Ferroelectric Fatigue of KNN Ceramics

B. Tah, S. Goswami, T. Dasgupta, J. Bera, P. Sinha, D. Kundu, S. Sen, A. Sen

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

Phase-pure KNN (K_0.5Na_0.5NbO₃) was synthesized from Rochelle salt and niobium pentoxide through solid-state route and the synthesized powder was sintered at 1130°C to get dense KNN ceramics. After polarization fatigue test, it was found that the d₃₃, k_P and remanent polarization (P_rem) of KNN decreased substantially. The reduction of the aforesaid parameters after fatigue was much higher in comparison to that of soft PZT (Navy type VI) tested under identical conditions. The possible reason behind such behaviour has been delineated.

Original language	English
Pages (from-to)	119-125
Number of pages	7
Journal	Ferroelectrics
Volume	481
Issue number	1
DOIs	https://doi.org/10.1080/00150193.2015.1051446
State	Published - 1 Jun 2015
Externally published	Yes

Keywords

KNN
Lead-free ceramics
PZT
fatigue

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1080/00150193.2015.1051446

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title = "Ferroelectric Fatigue of KNN Ceramics",

abstract = "Phase-pure KNN (K0.5Na0.5NbO3) was synthesized from Rochelle salt and niobium pentoxide through solid-state route and the synthesized powder was sintered at 1130°C to get dense KNN ceramics. After polarization fatigue test, it was found that the d33, kP and remanent polarization (Prem) of KNN decreased substantially. The reduction of the aforesaid parameters after fatigue was much higher in comparison to that of soft PZT (Navy type VI) tested under identical conditions. The possible reason behind such behaviour has been delineated.",

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AU - Tah, B.

AU - Goswami, S.

AU - Dasgupta, T.

AU - Bera, J.

AU - Sinha, P.

AU - Kundu, D.

AU - Sen, S.

AU - Sen, A.

PY - 2015/6/1

Y1 - 2015/6/1

N2 - Phase-pure KNN (K0.5Na0.5NbO3) was synthesized from Rochelle salt and niobium pentoxide through solid-state route and the synthesized powder was sintered at 1130°C to get dense KNN ceramics. After polarization fatigue test, it was found that the d33, kP and remanent polarization (Prem) of KNN decreased substantially. The reduction of the aforesaid parameters after fatigue was much higher in comparison to that of soft PZT (Navy type VI) tested under identical conditions. The possible reason behind such behaviour has been delineated.

AB - Phase-pure KNN (K0.5Na0.5NbO3) was synthesized from Rochelle salt and niobium pentoxide through solid-state route and the synthesized powder was sintered at 1130°C to get dense KNN ceramics. After polarization fatigue test, it was found that the d33, kP and remanent polarization (Prem) of KNN decreased substantially. The reduction of the aforesaid parameters after fatigue was much higher in comparison to that of soft PZT (Navy type VI) tested under identical conditions. The possible reason behind such behaviour has been delineated.

KW - KNN

KW - Lead-free ceramics

KW - PZT

KW - fatigue

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Ferroelectric Fatigue of KNN Ceramics

Abstract

Keywords

ASJC Scopus subject areas

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