期刊文献+

低损耗高介电常数CCTO陶瓷的制备与性能研究 被引量:3

Preparation and properties studies of high permittivity and low dielectric loss CCTO ceramics
下载PDF
导出
摘要 为了降低CaCu3Ti4O12(CCTO)陶瓷材料的介质损耗,采用传统固相反应法制备了组分为CaCu3–yZry/2Ti4O12(CCZTO)的陶瓷样品。研究了ZrO2掺杂对CCTO陶瓷性能的影响。结果表明:所制CCZTO陶瓷样品在维持了CCTO陶瓷材料介电常数大、低频介电常数随频率和温度变化小的优点的同时,介质损耗大幅降低;其介电常数和介质损耗的指标满足美国电子工业协会EIAZ5U标准,而温度系数αc性能指标优于EIAX7A标准所规定的±55×10–6/℃,是一种综合性能技术指标优良的新型高介电常数陶瓷材料。 In order to reduce the dielectric loss of CaCu3Ti4O12(CCTO) ceramics to a sufficiently low level,CaCu3–yZry/2Ti4O12(CCZTO) ceramics were prepared by the solid state reaction method.The effects of ZrO2 doping on the properties of CCTO ceramics were studied.The results show that ZrO2 doping significantly reduces the dielectric loss of CCTO ceramics,however,shows little effect on the other dielectric properties of CCTO ceramics.The prepared CCZTO ceramics show high dielectric constant and low dielectric loss,and their low-frequency dielectric constants vary slightly with temperature and frequency.The dielectric constant and loss of the CCZTO ceramics meet the requirements of EIAZ5U from the Electronic Industries Alliance,while the temperature coefficient of dielectric constant(TMK) exceeds the requirements of EIAX7A.This indicates that the prepared CCZTO ceramics is a novel kind of high performance high dielectric constant ceramics with a wide variety of potential applications.
出处 《电子元件与材料》 CAS CSCD 北大核心 2010年第12期21-24,共4页 Electronic Components And Materials
基金 国家自然科学基金资助项目(No.50572055) 山东省优秀中青年科研奖励基金资助项目(No.2005BS04013)
关键词 CCTO 高介电常数 介质损耗 ZRO2 掺杂 CCTO High permittivity dielectric loss ZrO2 doping
  • 相关文献

参考文献10

  • 1SUBRAMANIAN M A,LI D,DUAN N,et al.High dielectric constant in CaCu3Ti4O12 and ACu3Ti3FeO12 phases[J].J Solid State Chem,2000,151:323-328.
  • 2RAMIREZ A P,SUBRAMANIAN M A,GARDEL M,et al.Giant dielectric constant response in a copper titanate[J].Solid State Commun,2000,115:217-221.
  • 3PATTERSON E A,KWON S,HUANG C C.Effects of ZrO2 additions on the dielectric properties of CaCu3Ti4O12[J].Appl Phys Lett,2005,87:182911-182913.
  • 4CAPSONI D,BINI M,MASSAROTTI V,et al.Role of doping and CuO segregation in improving the giant permittivity of CaCu3Ti4O12[J].J Solid State Chem,2004,177:4494-4498.
  • 5KOBAYASHI W,TERASAKI I.CaCu3Ti4O12/CaTiO3 composite dielectrics:Ba/Pb-free dielectric ceramics with high dielectric constants[J].Appl Phys Lett,2005,87:032902-032904.
  • 6FANG T T,SHIAU H K.Mechanism for developing the boundary barrier layers of CaCu3Ti4O12[J].J Am Ceram Soc,2004,87:2072-2078.
  • 7PATTERSON E A,KWON S,HUANG C C,et al.Effects of ZrO2 additions on the dielectric properties of CaCu3Ti4O12[J].Appl Phys Lett,2005,87:182911-182913.
  • 8SHAO S F,ZHANG J L,ZHENG P,et al.Microstructure and electrical properties of CaCu3Ti4O12 ceramics[J].J Appl Phys,2006,99:084106-084112.
  • 9SINCLAIR D C,ADAMS T A,MORRISON F D,et al.CaCu3Ti4O12:one-step internal barrier layer capacitor[J].Appl Phys Lett,2002,80:2153-2155.
  • 10ADAMS T B,SINCLAIR D C,WEST A R.Giant barrier layer capacitance effects in CaCu3Ti4O12 ceramics[J].Adv Mater,2002,18:1321-1327.

同被引文献21

引证文献3

二级引证文献9

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部