Lead-free ternary perovskite compounds with large electromechanical strains

Abstract

Articles you may be interested inComposition induced structure evolution and large strain response in ternary Bi0.5Na0.5TiO3-Bi0.5K0.5TiO3-SrTiO3 solid solution Growth and orientation dependence of electrical properties of 0.92Na0.5Bi0.5TiO3-0.08 K0.5Bi0.5TiO3 lead-free piezoelectric single crystal Effect of lattice occupation behavior of Li+ cations on microstructure and electrical properties of (Bi1/2Na1/2)TiO3-based lead-free piezoceramics

Evolution of phase structure and giant strain at low driving fields in Bi-based lead-free incipient piezoelectrics

“…The Nb0.75 and Nb1.0 shows somewhat similar behavior, may be due to small compositional difference. The majority of BNTbased systems have required high driving fields to achieve high EFIS and S max /E max ≥ 600 pm/V [16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33]. Table 1 compares the S max and corresponding S max /E max values of BNBTNb-SZ ceramics with previously reported BNT-based ceramics.…”

“…Several researchers have attempted to lower this E th and improve the electric field-induced strain (EFIS) response [17][18][19][20][21][22][28][29][30][31][32][33][34][35][36]. Doping of impurities, either on the A-or Bsites of the ABO 3 perovskite structure, has been found as an effective method to enhance EFIS [19,[25][26][27][28].…”

Bipolar piezoelectric fatigue of Bi(Zn0.5Ti0.5)O3-(Bi0.5K0.5)TiO3-(Bi0.5Na0.5)TiO3 Pb-free ceramics

“…[15][16][17] Another common method has been forming solid solutions of BNT-BKT with end members that are unstable in ambient processing conditions, such as Bi(Mg 0.5 Ti 0.5 )O 3 or Bi(Ni 0.5 Ti 0.5 )O 3 . 18 Previously, it was shown that when BNT-BKT is combined with increasing concentrations of Bi(Zn 0.5 Ti 0.5 )O 3 (BZT), a transition from normal ferroelectric behavior to a material with large electric field induced strains was observed. 19,20 The higher BZT containing compositions are characterized by large hysteretic strains (>0.3%) with no negative strains that might indicate domain switching.…”

High temperature electronic properties of BaTiO3 – Bi(Zn1/2Ti1/2)O3 – BiInO3 for capacitor applications

“…Moreover, BaTiO 3 -BiInO 3 solid solutions have been studied by Datta et al; however, only a detailed structural analysis was reported [18]. Often, solid solutions of ternary compounds exhibit an improved performance compared to binary compounds, for example, BaTiO 3 -(Bi 1/2 Na 1/2 )TiO 3 -(K 1/2 Na 1/2 )NbO 3 [19], (Bi 1/2 Na 1/2 )TiO 3 -(Bi 1/2 K 1/2 )TiO 3 -Bi((Ni/Mg) 1/2 Ti 1/2 )O 3 [20], BiScO 3 -BaTiO 3 -(Bi 1/2 K 1/2 )TiO 3 [21], and BaTiO 3 -Bi(Zn 1/2 Ti 1/2 )O 3 -BiScO 3 [22].…”