过渡金属元素对铌酸钠基反铁电陶瓷储能性的影响  

Effect of Transition Metal Elements on the Energy Storage Properties of Sodium Niobate-based Antiferroelectric Ceramics

作　　者：叶芬 张小娜 万书权 冷森林 石维 成昊 Ye Fen;Zhang Xiaona;Wan Shuquan;Leng Senlin;Shi Weil;Cheng Hao(College of Material and Chemical Engineering,Tongren University,Guizhou,Tongren,554300,China;China Institute of Light Industrial Ceramics,Jiangxi,Jingdezhen 333000,China)

机构地区：[1]铜仁学院材料与化学工程学院,贵州铜仁554300 [2]中国轻工业陶瓷研究所,江西景德镇333000

出　　处：《陶瓷》2023年第8期37-41,共5页Ceramics

基　　金：贵州省科技计划项目“黔科合成果[2021]一般110”;贵州省锰系新型功能材料协同创新中心“黔教技[2022]003号”。

摘　　要：陶瓷电介质拥有较高的功率密度、超快的充放电速度和耐高温等优点,被广泛地应用于脉冲功率领域,且成为研究的热点。笔者采用传统固相法制备了(0.96NaNbO_(3)-0.04CaZrO_(3))-xM_(2)O_(3)(M=Fe、Co和Cr,x=0.01)陶瓷,样品呈现单一的钙钛矿结构没有明显的第二相。Fe、Co和Cr的掺入提高了NNCZ的介电常数和降低了其介电损耗,其中Fe掺入样品的介电损耗最低。NNCZ-Fe样品的击穿强度最高,对应的有效储能密度(Wrec)和储能效率(η)分别为:1.124 J/cm^(3)和59.10%。Fe掺入明显地优化了NNCZ的储能性能,在陶瓷电介质储能领域具有一定的研究意义。Ceramic dielectric has the advantages of high power density,ultra-fast charging and discharging speed and high temperature resistance.It is widely used in the field of pulse power and has become a research hotspot.In this paper,(0.96NaNbO_(3)-0.04CaZrO_(3))-xM_(2)O_(3)(M=Fe,Co and Cr,x=0.01)ceramics were prepared by traditional solid-state method.The samples showed a single perovskite structure without obvious second phase.The doping of Fe,Co and Cr increased the dielectric constant and reduced the dielectric loss of NNCZ,and the dielectric loss of Fe-doped sample was the lowest.The breakdown strength of NNCZ-Fe sample is the highest,and the corresponding effective energy storage density(Wrec)and energy storage efficiency(η)are 1.124 J/cm^(3) and 59.10%,respectively.Fe doping significantly optimizes the energy storage performance of NNCZ,which has certain research significance in the field of ceramic dielectric energy storage.

关 键 词：铌酸钠 反铁电 储能性能 介电性能 

分 类 号：TQ174[化学工程—陶瓷工业]