Ionic occupation, structures, and microwave dielectric properties of Y3MgAl3SiO12 garnet-type ceramics

doi:10.1111/jace.15174

	Ionic occupation, structures, and microwave dielectric properties of Y3MgAl3SiO12 garnet-type ceramics
	Song, Jianbing ; Song, Kaixin ; Wei, Jinsheng ; Lin, Huixin 1; Wu, Jun ; Xu, Junming ; Su, Weitao 2; Cheng, Zhiqun
刊名	JOURNAL OF THE AMERICAN CERAMIC SOCIETY
	2018
卷号	101 期号:1 页码:244
关键词	dielectric materials/properties electroceramics microstructure yttrium aluminum garnet
ISSN号	0002-7820
DOI	10.1111/jace.15174
英文摘要	The Y3MgAl3SiO12 ceramics with pure phase were successfully synthesized by solid-state sintering reaction method for the first time. Their microwave dielectric properties were investigated as a function of sintering temperature. Their microstructure characteristics and ionic occupation sites of tetrahedral and octahedral units were characterized and analyzed by SEM& energy dispersive spectrometer (EDS) and Rietveld refinement of X-ray powder diffraction data. Crystal structure of Y3MgAl3SiO12 is isostructural to Y3Al5O12 with a cubic garnet structure and space group of Ia-3d, which contains YO8 dodecahedra, (Mg/Al-oct)O-6 octahedral, and (Si/Al-tet)O-4 tetrahedral units. The Qf and epsilon(r) values of different samples are strongly dependent on the distribution of grain sizes, grain sizes, and porosity. The samples sintered at 1550 degrees C exhibit optimized microwave dielectric properties with relative permittivity (epsilon(r)) of 10.1, Qf values of 57 340GHz (at 9.5 GHz), and tau(f) values of -32 ppm/degrees C. Such properties indicate potential application of Y3MgAl3SiO12 as microwave substrates.
学科主题	Materials Science, Ceramics
出版者	WILEY
WOS记录号	WOS:000414367400028
资助机构	National Natural Science Foundation of China, Grant/Award Number: 51672063, 51202051 ; Science and Technology Program of Zhejiang Province, Grant/Award Number: 2016C31110 ; National Natural Science Foundation of China, Grant/Award Number: 51672063, 51202051 ; Science and Technology Program of Zhejiang Province, Grant/Award Number: 2016C31110
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/24614]
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, Zhejiang, Peoples R China 2.Chinese Acad Sci, Shanghai Inst Ceram, Shanghai, Peoples R China 3.Hangzhou Dianzi Univ, Coll Mat Sci & Environm Eng, Hangzhou, Zhejiang, Peoples R China
推荐引用方式 GB/T 7714	Song, Jianbing,Song, Kaixin,Wei, Jinsheng,et al. Ionic occupation, structures, and microwave dielectric properties of Y3MgAl3SiO12 garnet-type ceramics[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY,2018,101(1):244, 251.
APA	Song, Jianbing.,Song, Kaixin.,Wei, Jinsheng.,Lin, Huixin.,Wu, Jun.,...&Cheng, Zhiqun.(2018).Ionic occupation, structures, and microwave dielectric properties of Y3MgAl3SiO12 garnet-type ceramics.JOURNAL OF THE AMERICAN CERAMIC SOCIETY,101(1),244.
MLA	Song, Jianbing,et al."Ionic occupation, structures, and microwave dielectric properties of Y3MgAl3SiO12 garnet-type ceramics".JOURNAL OF THE AMERICAN CERAMIC SOCIETY 101.1(2018):244.