Influence of porous configuration on dielectric and piezoelectric properties of KNN–BKT lead-free ceramic

Pinheiro, Evelyn Derina; Thenmuhil, D.

doi:10.1007/s00339-019-3083-x

Cited by 3 publications

(1 citation statement)

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“…The other porous piezoelectric materials include LNK (porous lithium sodium potassium niobate ceramics) [ 7 ], NKN (porous (Na 0.5 K 0.5 )NbO 3 ceramics) [ 22 ], PZT (porous lead zirconate titanate ceramics) [ 37 , 39 ], BT (porous BaTiO 3 ceramics) [ 36 , 44 , 45 , 46 ], LNKN (porous lithium sodium potassium niobate ceramics) [ 39 ], NKNS (porous (Na 0.52 K 0.48 )(Nb 0.95 Sb 0.05 )O 3 ceramics) [ 47 ], KNN-BKT (porous (1-x) (K, Na)NbO 3 . x (Bi, K)TiO 3 ceramics) [ 48 ], BCZT (porous 0.5Ba(Ca 0.8 Zr 0.2 )O 3 -0.5(Ba 0.7 Ca 0.3 )TiO 3 ceramics) [ 38 ], and PZT-PCN (porous lead zirconate titanate-lead cobalt niobate 0.8Pb(Zr 1/2 Ti 1/2 )O 3 -0.2Pb(Co 1/3 Nb 2/3 )O 3 ceramics) [ 49 ].…”

Section: Figurementioning

confidence: 99%

Anisotropic Piezoelectric Properties of Porous (Ba0.85Ca0.15)(Zr0.1Ti0.9)O3 Ceramics with Oriented Pores through TBA-Based Freeze-Casting Method

Zhang

et al. 2022

Materials

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Porous (Ba0.85Ca0.15)(Zr0.1Ti0.9)O3 (BCZT) piezoelectric ceramics with an oriented directional hole structure were prepared by using the tertbutyl alcohol (TBA)-based freeze-casting method. The influences of sintering temperatures on the microstructure and piezoelectric properties of porous BCZT ceramics were investigated both perpendicular and parallel to the freezing direction. With the increase in sintering temperatures and the porosities decreased from 58% to 42%, the compressive strength increased from 14.0 MPa to 25.0 MPa. In addition, the d33 value of 407 pC/N for the sample sintered at 1400 °C was obtained parallel to the freezing direction, which was 1.40 times that of the other direction.

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