title: Giant Strains in Non-Textured (Bi1/2 Na1/2 )TiO3 -Based Lead-Free Ceramics.
abstract: Giant electric-field-induced strain of 0.70%, corresponding to a d33 * value of 1400 pm V(-1) , is observed in a lead-free (Bi1/2 Na1/2 )TiO3 -based polycrystalline ceramic. This is comparable to the properties of single crystals. An in situ transmission electron microscopy study indicates that the excellent performance originates from phase transitions under the applied electric fields.
authors.affiliation: Department of Materials Science and Engineering, Iowa State University, Ames, IA, 50011, USA.
authors.forename: Xiaoming
authors.initials: X
authors.lastname: Liu
authors.affiliation: Department of Materials Science and Engineering, Iowa State University, Ames, IA, 50011, USA.
authors.forename: Xiaoli
authors.initials: X
authors.lastname: Tan
keywords: electric field-induced strain; lead-free ceramics; lead-free piezoelectrics; phase transition