Relaxor behavior, polarization buildup, and switching in nanostructured 0.92 PbZn1/3Nb2/3O3-0.08 PbTiO3 ceramics.
The relaxor-type behavior, electrical polarization buildup, and switching in 0.92Pb(Zn(1/3)Nb(2/3))O(3)-0.08PbTiO(3) nanostructured ceramics with a grain size of approximately 20 nm is reported for the first time. This composition presents the highest-known piezoelectric coefficients, yet phase stability is an issue. Ceramics can only be obtained by the combination of mechanosynthesis and spark-plasma sintering. The results raise the possibility of using nanoscale, perovskite-relaxor-based morphotropic-phase-boundary materials for sensing and actuation in nanoelectromechanical systems.
Algueró
Miguel
M
Instituto de Ciencia de Materiales de Madrid (ICMM), Cantoblanco, 28049 Madrid, Spain. malguero@icmm.csic.es
Hungría
Teresa
T
Amorín
Harvey
H
Ricote
Jesús
J
Galy
Jean
J
Castro
Alicia
A
D002516:Ceramics / Q000737:chemistry*; D003460:Crystallization / Q000379:methods*; D017097:Electric Impedance; D007854:Lead / Q000737:chemistry*; D046911:Macromolecular Substances / Q000737:chemistry; D008280:Magnetics; D008422:Materials Testing; D008968:Molecular Conformation; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D036103:Nanotechnology / Q000379:methods*; D010316:Particle Size; D012666:Semiconductors; D013499:Surface Properties; D014025:Titanium / Q000737:chemistry*
D046911:Macromolecular Substances; C481719:lead titanate; D007854:Lead; D014025:Titanium