Effects of Mn2+doping on the microwave dielectric properties of Ti1−xCux/3Nb2x/3O2ceramics

doi:10.1016/j.ceramint.2017.07.115

SIC OpenIR

	Effects of Mn2+doping on the microwave dielectric properties of Ti1−xCux/3Nb2x/3O2ceramics
	Shao, Hui 1,2; Liu, Zhifu 1; Jian, Guang 2; Ma, Mingsheng 1; Li, Yongxiang 1,3
	2017
Source Publication	Ceramics International
ISSN	02728842
Volume	43 Issue:16 Pages:13895-13900
Abstract	In this study, undoped and Mn2+doped Ti1−xCux/3Nb2x/3O2(TCN, x = 0.2, 0.25, 0.3, 0.35) ceramics were prepared using a solid-state reaction method. The phase composition and microstructure of the TCN ceramics were investigated using X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The results indicated that the density and permittivity of the TCN ceramics increase with the increasing of the Cu and Nb content. However, Q × f value of the undoped TCN ceramics decreases with an increase in the sintering temperature. A small amount of Mn2+doping has no effect on the permittivity, but improves the Q × f value. X-ray photoelectron spectroscopy (XPS) analysis indicated that the transition of Cu2+to Cu+during the sintering process could be inhibited by Mn2+doping, which suppresses the formation of oxygen vacancies, as a result, the improvement of Q × f value. Excellent microwave dielectric properties with a permittivity of 95 and Q × f value of 20800 GHz (@3.50 GHz) were achieved from the 0.6 at% Mn2+doped TCN (x = 0.25) ceramics sintered at 1025 °C for 5 h. © 2017 Elsevier Ltd and Techna Group S.r.l.
DOI	10.1016/j.ceramint.2017.07.115
EI Accession Number	20172903962938
EI Keywords	X ray photoelectron spectroscopy
EI Classification Number	741.3 Optical Devices and Systems - 802.2 Chemical Reactions - 812.1 Ceramics - 931.2 Physical Properties of Gases, Liquids and Solids - 933.1 Crystalline Solids
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Document Type	期刊论文
Identifier	http://ir.sic.ac.cn/handle/331005/25887
Collection	中国科学院上海硅酸盐研究所
Affiliation	1.CAS Key Laboratory of Inorganic Functional Materials and Devices, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai; 200050, China; 2.School of Materials and Engineering, Jiangsu University of Science and Technology, Zhengjiang; 2132003, China; 3.School of Engineering, RMIT University, Melbourne; VIC; 3001, Australia
Recommended Citation GB/T 7714	Shao, Hui,Liu, Zhifu,Jian, Guang,et al. Effects of Mn2+doping on the microwave dielectric properties of Ti1−xCux/3Nb2x/3O2ceramics[J]. Ceramics International,2017,43(16):13895-13900.
APA	Shao, Hui,Liu, Zhifu,Jian, Guang,Ma, Mingsheng,&Li, Yongxiang.(2017).Effects of Mn2+doping on the microwave dielectric properties of Ti1−xCux/3Nb2x/3O2ceramics.Ceramics International,43(16),13895-13900.
MLA	Shao, Hui,et al."Effects of Mn2+doping on the microwave dielectric properties of Ti1−xCux/3Nb2x/3O2ceramics".Ceramics International 43.16(2017):13895-13900.

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