Zr掺杂改性(Bi_(0.5)Na_(0.5))_(0.91)Pr_(0.02)Ba_(0.07)TiO_(3)无铅铁电陶瓷的储能行为  

Energy Storage Properties of Zr Doping Modified (Bi_(0.5)Na_(0.5))_(0.91)Pr_(0.02)Ba_(0.07)TiO_(3) Lead-Free Ferroelectric Ceramics

作　　者：李晓伟 安胜利[1,2] 李雍[2] 韩沛[2,3] Li Xiaowei;An Shengli;Li Yong;Han Pei(School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China;Key Laboratory of Ferroelectric-related New Energy Materials and Devices,Inner Mongolia University of Science and Technology,Baotou 014010,China;Analytical and Testing Center,Inner Mongolia University of Science and Technology,Baotou 014010,China)

机构地区：[1]北京科技大学生态与冶金学院,北京100083 [2]内蒙古科技大学铁电新能源材料与器件重点实验室,内蒙古包头014010 [3]内蒙古科技大学分析测试中心,内蒙古包头014010

出　　处：《稀有金属材料与工程》2022年第2期511-515,共5页Rare Metal Materials and Engineering

基　　金：内蒙古自治区重大专项基金(2019ZD12)。

摘　　要：通过固相烧结法微量掺杂Zr到(Bi_(0.5)Na_(0.5))_(0.91)Pr_(0.02)Ba_(0.07)TiO_(3)制得无铅铁电陶瓷,对其相结构、微观形貌、储能及介电行为进行了研究。所有的样品都形成了单一的钙钛矿相,晶粒细小均匀。Zr的掺杂有效地提高了击穿场强,掺杂量为x=0.03 (摩尔比)时陶瓷在场强138 kV/cm下最大有效储能密度达到1.38 J/cm^(3),储能效率达到52.44%,同时显示了稳定的高温铁电特性,并获得了较大的介电常数1150且保持稳定。ZrO_(2)-doped (Bi_(0.5)Na_(0.5))_(0.91)Pr_(0.02)Ba_(0.07)TiO_(3)lead-free ferroelectric ceramics were synthesized by solid-phase sintering method.The influence of Zr substitution on the phase structure,microstructure,energy storage behavior and dielectric behavior of(Bi;Na;);Pr;Ba;TiO;were investigated.All samples form a single perovskite phase with fine and uniform crystal grains.The doping of Zr effectively increases the breakdown field strength.When the doping amount is x=0.03,the maximum effective energy storage density of the ceramic reaches 1.38 J/cm^(3)at field strength of 138 kV/cm,and the energy storage efficiency reaches 52.44%.At the same time,it exhibits stable high-temperature ferroelectric characteristics.A large dielectric constant of 1150 is obtained and remains stable.

关 键 词：钛酸铋钠 铁电陶瓷 储能 介电行为 

分 类 号：TM282[一般工业技术—材料科学与工程]