Microstructure characteristics and microwave dielectric properties of calcium apatite ceramics as microwave substrates

doi:10.1016/j.jallcom.2017.10.028

	Microstructure characteristics and microwave dielectric properties of calcium apatite ceramics as microwave substrates
	Song, Jianbing ; Song, Kaixin ; Wei, Jinsheng ; Lin, Huixin 1; Xu, Junming ; Wu, Jun ; Su, Weitao 2
刊名	JOURNAL OF ALLOYS AND COMPOUNDS
	2018
卷号	731 页码:264
关键词	Apatite Ceramics Microstructures Microwave dielectric properties
ISSN号	0925-8388
DOI	10.1016/j.jallcom.2017.10.028
英文摘要	Apatite structure of CaLa4Si3O13 ceramics was prepared by the conventional solid-state reaction route. The Rietveld refinement of powder X-ray diffraction (XRD) and analysis of scanning electron microscope images demonstrated that CaLa4Si3O13 belonged to a hexagonal structure with space group of P6(3)/m (No. 176) and grew in a shape of hexagonal prism. The effects of crystallinity, porosity, grain morphology, grain size distribution, and oxygen vacancy on the microwave dielectric properties were investigated in detail as a function of sintering temperature. The existence of Oxygen vacancies and the stretching and bending modes of SiO4 tetrahedral units were discussed by Raman spectra. Excellent microwave dielectric properties were obtained with epsilon(r) = 14.5, Q x f = 31,100 GHz (at 9.05 GHz), tau(f) = -22 ppm/degrees C, indicating possible potential applications for microwave substrate applications. (C) 2017 Elsevier B.V. All rights reserved.
学科主题	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000415930900036
资助机构	This work was supported by the National Natural Science Foundation of China under grant number 51672063 and 51202051 and Science and Technology Program of Zhejiang Province under grant number 2016C31110. ; This work was supported by the National Natural Science Foundation of China under grant number 51672063 and 51202051 and Science and Technology Program of Zhejiang Province under grant number 2016C31110.
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/24554]
专题	中国科学院上海硅酸盐研究所
作者单位	1.Hangzhou Dianzi Univ, Coll Elect Informat & Engn, Hangzhou 310018, Zhejiang, Peoples R China 2.Chinese Acad Sci, Shanghai Inst Ceram, Shanghai 200050, Peoples R China 3.Hangzhou Dianzi Univ, Coll Mat Sci & Environm Engn, Hangzhou 310018, Zhejiang, Peoples R China
推荐引用方式 GB/T 7714	Song, Jianbing,Song, Kaixin,Wei, Jinsheng,et al. Microstructure characteristics and microwave dielectric properties of calcium apatite ceramics as microwave substrates[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2018,731:264, 270.
APA	Song, Jianbing.,Song, Kaixin.,Wei, Jinsheng.,Lin, Huixin.,Xu, Junming.,...&Su, Weitao.(2018).Microstructure characteristics and microwave dielectric properties of calcium apatite ceramics as microwave substrates.JOURNAL OF ALLOYS AND COMPOUNDS,731,264.
MLA	Song, Jianbing,et al."Microstructure characteristics and microwave dielectric properties of calcium apatite ceramics as microwave substrates".JOURNAL OF ALLOYS AND COMPOUNDS 731(2018):264.