Manganese-doped Effects on Dielectric and Piezoelectric Properties of Lead-free (1-x)(Na0.5Bi0.5)TiO

• 作 者: ShengFenWANG[1]C.-S.TU[1]P.-Y.CHEN[2]C.-S.CHEN[3]T.-L.CHANG[2]V.H.SCHMIDT[4]R.R.CHIEN[4]
• 机 构: Department of physics,Fu Jen Catholic University,Taipei,Taiwan
• 出 处: The 5th International Congress on Ceramics, ICC5(第五届国际陶瓷大会)
• 发表日期: 2014年期

　　Dielectric permittivity,depolarization current,hysteresis loops of polarization and strain,structure,grain morphology,and piezoelectric coefficient(d33)of 0.5 mol%Mn4+-doped(1-x)(Bi0.5Na0.5)TiO3-xBaTiO3(x=0.0 and 0.075)polycrystalline ceramics have been characterized systematically.BNT7.5B and BNT7.5B-0.5Mn exhibit wide dielectric thermal hystereses respectively in the regions of 100-320 ℃ and 30-340 ℃ suggesting a first-order broad diffuse transition with coexistence of R(rhombohedral)and T(Tetragonal)phases.