Electrical properties of lead-free 0.98(Na 0.5 K 0.5 Li x )NbO 3 -0.02Ba(Zr 0.52 Ti 0.48 )O 3 ceramics
作者： Seung-Hwan Lee , Hyun-Ju Kim , Sung-Gap Lee , Jung-Hyuk Koh , Sang-Don Baek
DOI: 10.1007/S13391-011-1063-1
关键词: Composite material 、 Piezoelectric coefficient 、 Dielectric 、 Polarization (electrochemistry) 、 Analytical chemistry 、 Materials science 、 Piezoelectricity 、 Phase boundary 、 Phase transition 、 Electromechanical coupling coefficient 、 Ceramic
摘要: Lead-free 0.98(Na0.5K0.5Lix)NbO3-0.02Ba(Zr0.52Ti0.48)O3 piezoelectric ceramics were investigated. The experimental results show that Li content strongly affects the orthorhombic-tetragonal morphotropic phase boundary (MPB) which in different properties. transition composition shows a range from 0.05 to 0.1. sample with of x = 0.1 showed maximum values coefficient (d33= 201 ρC/N), electromechanical coupling (kp= 39%), and remnant polarization (Pr= 21 μC/cm2).
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