BNKT-NKS压电陶瓷的制备及电学性能研究  

Preparation and properties of BNKT-NKS lead-free ceramics

作　　者：李伟[1] 熊健[1] 周勇[1] 廖运文[2] 

机构地区：[1]西藏大学理学院,西藏拉萨850000 [2]西华师范大学化学化工学院,四川南充637002

出　　处：《应用化工》2017年第2期179-181,共3页Applied Chemical Industry

基　　金：四川省基础研究项目(2011jy0058)

摘　　要：以碳酸盐和氧化物为原料,无水乙醇为研磨介质,采用固相法合成压电陶瓷体系0.995Bi0.5(Na0.8K0.2)0.5Ti O3-0.005(Na1-xKx)Sb O3(BNKT-NKS),并对其微结构、表面形貌、电学性能进行了分析测试。结果表明,压电陶瓷样品都能形成单一钙钛矿固溶体结构,具有较好的电学性质:x=30%时,d33=149 p C/N,kp=0.315,Qm=139,tanδ=0.037;x=10%时,tanδ=0.037。; Using carbonate and oxide as raw material, with anhydrous ethanol as a solvent, synthesis the lead-free piezoelectric ceramics 0.995Bi0.5（Na0.8K0.2）0.5Ti O3-0.005（Na1-xKx）SbO3（BNKT-NKS） by solid state method that sintering technique. For research the microstructure, surface morphology and piezo-electric and dielectric properties of the sample, these experimental data were measured by using XRD, SEM and so on. The results show that a new lead-free piezoelectric ceramics have good electrical properties of d33 = 149 pC/N,Ap =0.315 , Qm =139, tanδ=0. 037.

关 键 词：无铅压电陶瓷 微结构 钙钛矿结构 压电性能 

分 类 号：TQ016[化学工程] TM282[一般工业技术—材料科学与工程]