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Dielectric properties of (Al3+, Nb5+) co-doped CaTiSiO5 ceramics at elevated temperature
Peng, Xiaoxiao; Liu, Zhifu; Gu, Yan; Zhang, Faqiang; Li, Yongxiang
2019-09-01
Source PublicationJOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
ISSN0022-3697
Volume132Pages:83
SubtypeArticle
AbstractThe CaTi(1-x)(Al0.5Nb0.5)(x)SiO5(0 <= x <= 0.1) ceramics were prepared by the conventional solid-state method. Al and Nb co-doping improved the high temperature stability of the CaTiSiO5 material and no obvious phase transition was found at temperature up to 623 K for x >= 0.03. A dielectric constant of 53, dielectric loss of 0.001, resistivity of 8.5 x 10(13)Omega cm, and breakdown strength of 1064.7 kV/cm was obtained for the CaTi0.97(Al0.5Nb0.5)(0.53)SiO5 ceramics at room-temperature. The dielectric constant is stable over a wide temperature range and a resistivity of 9.0 x 10(10) Omega cm could still be achieved up to 573 K. The P-E loops measurements showed that energy storage efficiencies of 96% and 88.6% could be obtained at room-temperature and 453 K, respectively, for the CaTi0.57(Al0.5Nb0.5)(0.03)SiO5 ceramics. The excellent dielectric properties at elevated temperature indicate that titanite based ceramics stabilized by Al and Nb co-doping could be promising candidates for high temperature ceramic capacitors application.
KeywordTitanite Co-doping Dielectric properties High temperature
DOI10.1016/j.jpcs.2019.04.021
Language英语
WOS Research AreaChemistry ; Physics
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/26885
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Peng, Xiaoxiao,Liu, Zhifu,Gu, Yan,et al. Dielectric properties of (Al3+, Nb5+) co-doped CaTiSiO5 ceramics at elevated temperature[J]. JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS,2019,132:83.
APA Peng, Xiaoxiao,Liu, Zhifu,Gu, Yan,Zhang, Faqiang,&Li, Yongxiang.(2019).Dielectric properties of (Al3+, Nb5+) co-doped CaTiSiO5 ceramics at elevated temperature.JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS,132,83.
MLA Peng, Xiaoxiao,et al."Dielectric properties of (Al3+, Nb5+) co-doped CaTiSiO5 ceramics at elevated temperature".JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS 132(2019):83.
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