(1-x)Bi_(0.5)(Na_(0.8)K_(0.2))_(0.5)TiO_3-xKSbO_3压电陶瓷的制备及性能研究  

Preparation and Properties of (1-x)Bi_(0.5)(Na_(0.8)K_(0.2))_(0.5)TiO_3-xKSbO_3 Lead-free Ceramics

作　　者：李伟[1] 熊健[1] 陈虎林[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：《广州化工》2014年第23期87-89,共3页GuangZhou Chemical Industry

摘　　要：采用传统固相法制备了新型(1-x)Bi0.5(Na0.8K0.2)0.5Ti O3-xKSbO3无铅压电陶瓷,利用XRD、SEM等测试技术表征了该陶瓷的晶体结构、表面形貌、压电和介电性能。研究结果表明,在所研究的组成范围内陶瓷材料均能形成纯的钙钛矿固溶体。在室温下,当KSb O3的掺杂量为1%时,该体系表现出较好的介电性能:εr和tanδ分别为2 231和0.055。A new Bi0.5（Na0.8K0.2）0.5TiO3-based lead-free piezoelectric ceramics （1-x）Bi0.5（Na0.8K0.2）0.5TiO3-xKSbO3 was prepared by the conventional ceramic sintering technique.Microstructure and shape were studied by x-ray diffraction, scanning electron microscope, etc.The X-ray diffraction patterns showed that all ceramics investigated can form a pure perovskite phase.When KSbO3 were 1%, the dielectric properties of ceramic obtained better value, εr and tanδof the ceramics attained the maximum values of 2 231 and 0.055.

关 键 词：无铅压电陶瓷 微结构 压电性能 介电性能 

分 类 号：TQ134.1[化学工程—无机化工]