电子元件与材料2024，Vol.43Issue(7)：822-829,8.DOI:10.14106/j.cnki.1001-2028.2024.0117
Ni2O3和ZrO2共掺杂CaCu3Ti4O12陶瓷的介电性能研究
Dielectric properties of CaCu3Ti4O12 ceramics co-doped with Ni2O3 and ZrO2
摘要
Abstract
CaCu3Ti4O12(CCTO)dielectric ceramics have attracted widespread attention and research interest owing to their extremely high dielectric constant(ε'),which shows significant potential in the capacitor materials field.However,the development has been hampered by the elevated dielectric loss(tanδ)and inadequate temperature stability of it.In order to mitigate tanδ and enhance temperature stability of the ceramics,CCTO ceramics co-doped with Ni2 O3 and ZrO2 were synthesized via sol-gel method.The investigation reveals that,with the doping of Ni2O3 and ZrO2,high ε'of the ceramic is maintained,while the temperature stability is substantially improved and tanδ is reduced.It should be noted that the samples co-doped with 1％Ni2O3 and 1％ZrO2 exhibits an ε'as high as 4710,with variations within±20％across the temperature range from-125 to 200 ℃,which conforms to the standards of X9S capacitors(△ε'＜±20％)within the range from-55 to 200 ℃.Furthermore,the tanδ of this sample at room temperature is lower than that of pure CCTO(0.012 compared to 0.025).These outstanding performances are closely associated with the increased grain boundary activation energy and grain boundary resistance.关键词
CaCu3Ti4O12陶瓷/温度稳定性/介电损耗/X9S电容器Key words
CaCu3Ti4O12 ceramics/temperature stability/dielectric loss/X9S capacitors分类
信息技术与安全科学引用本文复制引用
南彦鑫,张建花,邓涛,李鹏,吕亚璐..Ni2O3和ZrO2共掺杂CaCu3Ti4O12陶瓷的介电性能研究[J].电子元件与材料,2024,43(7):822-829,8.基金项目
国家自然科学基金(51701136) （51701136）
国家自然科学基金(51977137) （51977137）
山西省自然科学基金(201901D211044) （201901D211044）
