Magneto-Electric Effect of KNN-Ni Composites
A conversion was facilitated with magneto-electric effect between energies stored in ferromagnetic form and piezoelectric one in material. This paper is concerned with magneto-electric performance of composites with a bi-layered structure for ceramic (Nao.5Ko.45Lio.o5)(Nbo.9Tao.o8Sbo.o2)O3, i.e., KNN, and metal nickel. Lead-free piezoelectric KNN ceramics were synthesized by the two-step sintering process. More than 96％ of theoretical density for the ceramics was obtained, and, the d33 of the KNN sample was about 300pC/N. Based on the high piezoelectric performance of the KNN ceramic, a lead-free magnetoelectric composite was prepared by gluing KNN ceramic with Ni plate together. The magneto-electric effect of the bi-layered composites with various thickness ratios was investigated in details, with a magnetoelectric coefficient of about lOmV/Oe.
Qing jun Lu Hao Xue Zhan Shi Zhao xian Xiong Peng Hu Zhibin Zheng Xiaopeng Xiao
College of Materials, Xiamen University, Xiamen 361005, PR China
国际会议
2011 International Symposium on Advanced Packaging Materials(2011年先进电子封装材料国际会议APM)
厦门
英文
35-38
2011-10-25（万方平台首次上网日期，不代表论文的发表时间）