Physical Properties and Structure Characteristics of Laser Prepared (Na0.5K0.5)NbO3-LiNbO3 Ceramics
Published in Ferroelectrics, 2010
Recommended citation: Lingfei Ji, Xinyu Du, Yan Zhao, Jie Liu, and Yijian Jiang, "Physical Properties and Structure Characteristics of Laser Prepared (Na0.5K0.5)NbO3-LiNbO3 Ceramics", Ferroelectrics 400, 104-112 (2010) http://dx.doi.org/10.1080/00150193.2010.505498
Abstract
Fine ferroelectric properties with remnant polarization of 22.7 μC/cm2 and coercive field of 16.1 kV/cm of (1-x)K0.5Na0.5NbO3-xLiNbO3 ((1-x)KNN-xLN) ceramics were obtained by laser sintering method. The optimum piezoelectric properties of piezoelectric constant d33 ∼ 110 pC/N do not exist in the ceramics with the amount of LiNbO3 at x = 0.06 but lower to x = 0.04. The texture structure with the increase of (00l) orientation along the spontaneous polarization directions results in strong contribution to the ferroelectric response. High substitution effect of Li+ leads to the transformation from orthorhombic phase to tetragonal phases occurring at lower amount of LiNbO3.