硅酸盐学报Issue(4)：453-457,5.DOI:10.7521/j.issn.0454-5648.2014.04.06
钙铜钛氧高介陶瓷的B位锌掺杂与性能
Preparation and Properties of B-site Zn2+ Substituted CaCu3 Ti4 O12 Ceramics
摘要
Abstract
Zn2+substitution for B-site ions of CaCu3 Ti4 O12 ceramics were prepared by solid-state reaction,which were deeply in-vestigated by the X-ray diffraction and the scanning electron microscopy as well as an impendence analyzer.The dielectric per-mittivity of Zn2+ ions doped CaCu3 Ti4 O12 is 6 545 and the dielectric loss is less than 0.4 in 10 kHz-1 MHz frequency range, The optimized properties of Zn2+substituted CaCu3 Ti4 O12 are related to the increase of grain boundaries resistance and grain size.Temperature dependences of the dielectric permittivity and loss of CaCu3Ti4-xZnxO12-δ(x=0.03)ceramics were measured and the active energy is 0.529 eV,thus the dielectric relaxation is coupling among grain boundaries.关键词
高介陶瓷/B位掺杂/介电性能/弛豫Key words
high dielectric permittivity ceramics/B-site substitution/dielectric properties/relaxation分类
通用工业技术引用本文复制引用
樊慧庆,郑茜..钙铜钛氧高介陶瓷的B位锌掺杂与性能[J].硅酸盐学报,2014,(4):453-457,5.基金项目
国家自然科学基金(51172187) （51172187）
教育部博士点基金(20116102130002) （20116102130002）
111基地(B08040)资助项目。 （B08040）
