稀土离子掺杂0.6BaTiO_(3)-0.4Bi(Mg_(1/2)Ti_(1/2))O_(3)陶瓷的储能性能研究  

Energy Storage Properties of Rare Earth Ions Doped 0.6BaTiO_(3)-0.4Bi(Mg_(1/2)Ti_(1/2))O_(3) Ceramics

作　　者：常劭祎 毛海军 汪丰麟 陈兴宇[1] 刘卓峰[1] 李巍 张为军[1] CHANG Shao-yi;MAO Hai-jun;WANG Feng-lin;CHEN Xing-yu;LIU Zhuo-feng;LI Wei;ZHANG Wei-jun(College of Aerospace Science,National University of Defense Technology,Hunan Changsha 410073,China)

机构地区：[1]国防科技大学空天科学学院,湖南长沙410073

出　　处：《广州化工》2023年第4期75-77,共3页GuangZhou Chemical Industry

基　　金：湖南省自然科学基金(2022JJ30661,2022JJ40549)。

摘　　要：弛豫铁电陶瓷由于优异的介电和储能性能,在陶瓷储能电容器中具有较大的应用潜力。本文采用固相烧结法制备了0.05 mol Nd^(3+)、Sm^(3+)和Gd^(3+)稀土离子掺杂的0.6BaTiO_(3)-0.4Bi(Mg1/2Ti1/2)O3陶瓷。结果表明,所有陶瓷均表现为典型的弛豫铁电体,其中Nd^(3+)掺杂的陶瓷样品具有最小的介电损耗,获得了最大的击穿场强(350 kV/cm)和储能效率(94.38%);Gd^(3+)掺杂的陶瓷样品具有最大的介电常数,获得了最高的可恢复储能密度(4.33 J/cm^(3))。Relaxor ferroelectric ceramics have great application potential in ceramic energy storage capacitors due to their excellent dielectric and energy storage properties.0.6BaTiO_(3)-0.4Bi(Mg_(1/2)Ti_(1/2))O_(3) ceramics doped with rare earth ions of 0.05 mol Nd^(3+),Sm^(3+)and Gd^(3+)were prepared by solid-phase sintering.The results showed that all the ceramics were typical relaxor ferroelectrics,and Nd^(3+)doped ceramic sample had the smallest dielectric loss,the highest breakdown field strength(350 kV/cm)and energy storage efficiency(94.38%).Gd 3+doped ceramic samples had the highest dielectric constant and obtain the highest recoverable energy storage density(4.33 J/cm^(3)).

关 键 词：弛豫铁电体 稀土离子 击穿场强 储能性能 

分 类 号：TB34[一般工业技术—材料科学与工程]