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Microwave dielectric properties of sol-gel derived NiZrNb2O8 ceramics
Wu, Mengjuan1; Zhang, Yingchun1; Chen, Jundan1; Xiang, Maoqiao2
2018-05-30
发表期刊JOURNAL OF ALLOYS AND COMPOUNDS
ISSN0925-8388
卷号747页码:394-400
摘要NiZrNb2O8 microwave dielectric ceramics were prepared by an optimized sol-gel method using Nb2O5 center dot nH(2)O as a precursor. The thermal decomposition behavior of the Nb2O5 center dot nH(2)O was characterized by different thermal analysis and thermogravimetry (DTA/TG). Nanoscale NiZrNb2O8 particles with wolframite structure were obtained at about 950 degrees C. Regarding the microwave dielectric properties of NiZrNb2O8 ceramics, significant dependence has been verified with the sintering conditions, microstructure and compositions. The correlation between NiZrNb2O8 crystal structure and microwave dielectric properties was investigated from the analysis result of crystal structure refinement, chemical bonding ionicity and lattice energy based on the theory of valence. The relative density, dielectric constants, quality factors and temperature coefficients of the resonant frequency of NiZrNb2O8 ceramics sintered at 1100 degrees C reached 5.585 g/cm(3), 29.31, 22985 GHz and -24.96 ppm/degrees C, respectively. (C) 2018 Elsevier B.V. All rights reserved.
关键词Microwave Dielectric Properties Nizrnb2o8 Ceramic Sol-gel Synthesis
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1016/j.jallcom.2018.02.300
收录类别SCI
语种英语
关键词[WOS]CRYSTAL-STRUCTURE ; BOND-VALENCE ; COTINB2O8 CERAMICS ; PERMITTIVITY ; AZRNB(2)O(8) ; MG ; MN ; CO
WOS研究方向Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
项目资助者National Natural Science Foundation of China(51772022)
WOS记录号WOS:000429175700045
引用统计
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/24174
专题多相复杂系统国家重点实验室
作者单位1.Univ Sci & Technol Beijing, Sch Mat Sci & Engn, 30 Xueyuan Rd, Beijing 100083, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
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Wu, Mengjuan,Zhang, Yingchun,Chen, Jundan,et al. Microwave dielectric properties of sol-gel derived NiZrNb2O8 ceramics[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2018,747:394-400.
APA Wu, Mengjuan,Zhang, Yingchun,Chen, Jundan,&Xiang, Maoqiao.(2018).Microwave dielectric properties of sol-gel derived NiZrNb2O8 ceramics.JOURNAL OF ALLOYS AND COMPOUNDS,747,394-400.
MLA Wu, Mengjuan,et al."Microwave dielectric properties of sol-gel derived NiZrNb2O8 ceramics".JOURNAL OF ALLOYS AND COMPOUNDS 747(2018):394-400.
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