Reaction sintering of lead zinc niobate-lead zirconate titanate ceramics

Abstract Lead zinc niobate (PZN)–lead zirconate titanate (PZT) ceramics were produced by the reaction-sintering process. The specimens were prepared directly from a mixture of their constituent oxides without any calcination step. When 50% PZN was added to tetragonal Pb(Zr 0.47 Ti 0.53 )O 3 ceramics, the densities and electrical properties were found to be optimal ( ρ  = 7.91 g/cm 3 , K  = 1947 at 1 kHz and room temperature, d 33  = 530 pC/N, k p  = 0.61). However, the specimen containing more than 50% PZN showed reduced density and decreased electrical properties, due to the formation of pyrochlore phases. The improved densification behavior of the reaction-sintering process was attributed to the enhanced diffusion of lattice defects, which were created by differences in the ionic valence of the B-sites ions of the perovskite structure.

[1]  Hyoun‐Ee Kim,et al.  Perovskite stabilization and electromechanical properties of polycrystalline lead zinc niobate-lead zirconate titanate , 2002 .

[2]  L. Kong,et al.  PZT ceramics formed directly from oxides via reactive sintering , 2001 .

[3]  T. Shrout,et al.  Ultrahigh strain and piezoelectric behavior in relaxor based ferroelectric single crystals , 1997 .

[4]  A. Kingon,et al.  Sintering of PZT Ceramics: II, Effect of PbO Content on Densification Kinetics , 1983 .

[5]  K. Uchino,et al.  Diffuse phase transition in lead zinc niobate , 1978 .

[6]  Y. Liou.  Stoichiometric perovskite PMN-PT ceramics produced by reaction-sintering process , 2003 .

[7]  Jun Ma,et al.  REACTION SINTERING OF PARTIALLY REACTED SYSTEM FOR PZT CERAMICS VIA A HIGH-ENERGY BALL MILLING , 2001 .

[8]  R. Fulrath,et al.  Point Defects and Sintering of Lead Zirconate-Titanate , 1971 .

[9]  S. Nomura,et al.  Ferroelectric Properties of Pb(Zn1/3Nb2/3)O3 , 1970 .

[10]  Hyoun‐Ee Kim,et al.  Microstructural Evolution of Transparent PLZT Ceramics Sintered in Air and Oxygen Atmospheres , 2004 .

[11]  A. Safari,et al.  Preparation of Perovskite PZN-PT ceramic powder near the morphotropic phase boundary , 1986 .

[12]  R. Newnham,et al.  Stabilization of the perovskite phase and dielectric properties of ceramics in the Pb(Zn1/3Nb2/3)O3-BaTiO3 system , 1987 .

[13]  Yuhuan Xu,et al.  Ferroelectric Materials and Their Applications , 2023, Japanese Journal of Applied Physics.

[14]  C. Alemany,et al.  Effect of PMN modification on structure and electrical response of xPMN–(1−x)PZT ceramic systems , 2003 .

[15]  Thomas R. Shrout,et al.  Fabrication of perovskite lead magnesium niobate , 1982 .

[16]  G. Haertling.  Ferroelectric ceramics : History and technology , 1999 .

[17]  Jun Ma,et al.  Possibility of one-step approach to 0.7PZN–0.3BT multiple ceramics from component constituent oxides , 2002 .

[18]  Kenji Uchino,et al.  Dielectric and Piezoelectric Properties of 0.91Pb(Zn1/3Nb2/3)O3-0.09PbTiO3 Single Crystals , 1982 .

[19]  T. Shrout,et al.  Preparation of lead-based ferroelectric relaxors for capacitors , 1987 .

[20]  Y. Liou,et al.  Stoichiometric Perovskite Lead Magnesium Niobate Ceramics Produced by Reaction-Sintering Process , 2003 .

[21]  Y. H. Chang,et al.  Behavior of PbO in the two-stage sintering of PLZT ceramics , 1994 .

[22]  H. M. Jang,et al.  Effects of Sintering Atmosphere on Densification Behavior and Piezoelectric Properties of Pb(Ni1/3Nb2/3)O3–PbZrO3 Ceramics , 1993 .

[23]  X. Tan,et al.  Perovskite phase formation and ferroelectric properties of the lead nickel niobate–lead zinc niobate–lead zirconate titanate ternary system , 2003 .