Far-infrared reflection study on crystal structures and dielectric properties of Ba(Mg1/3Ta2/3)O3-BaWO4 ceramics

doi:10.1007/s10854-014-2454-5

	Far-infrared reflection study on crystal structures and dielectric properties of Ba(Mg1/3Ta2/3)O3-BaWO4 ceramics
	Yue, Zhanxian; Shi, Feng; Gu, Yufen; Li, Cuixia
刊名	Journal of Materials Science: Materials in Electronics
	2014
卷号	26 期号:2 页码:711-718
关键词	Ceramic materials FIR filters Infrared spectroscopy Lattice constants Phonons Sintering X ray diffraction Active mode Far infrared Far-infrared spectroscopy Lattice-parameter ratio Ordering degree Phonon mode Solid state sintering Vibration modes
ISSN号	09574522
DOI	10.1007/s10854-014-2454-5
英文摘要	Ba(Mg1/3Ta2/3)O3–BaWO4 (BMT–BW) ceramics were synthesized at 1,490 °C for 3 h using the conventional solid-state sintering technique, with BW contents of 2, 4 and 6 wt%. Crystal structures were elucidated by X-ray diffraction (XRD), and vibration modes were obtained by far-infrared spectroscopy (FIR). Correlations among crystal structures, dielectric properties and phonon modes of the ceramics were evaluated. The results demonstrate that the lattice parameter ratio (c/a) and the ordering degree reach a maximum value at x = 0.04. Studies about the FIR spectra also show that the IR active modes near 230 and 540 cm−1 reach a maximum value at x = 0.04. IR active modes near 360 cm−1 split and new phonon modes appear at x ≥ 0.04, which agrees with the change in the crystal structures as proved in the XRD results. The correlations between dielectric properties and IR phonon modes were established with vibration modes as the media. © 2014, Springer Science+Business Media New York.
WOS研究方向	Engineering ; Materials Science ; Physics
语种	英语
出版者	Springer New York LLC
WOS记录号	WOS:000349439500014
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/113068]
专题	材料科学与工程学院
作者单位	School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Yue, Zhanxian,Shi, Feng,Gu, Yufen,et al. Far-infrared reflection study on crystal structures and dielectric properties of Ba(Mg1/3Ta2/3)O3-BaWO4 ceramics[J]. Journal of Materials Science: Materials in Electronics,2014,26(2):711-718.
APA	Yue, Zhanxian,Shi, Feng,Gu, Yufen,&Li, Cuixia.(2014).Far-infrared reflection study on crystal structures and dielectric properties of Ba(Mg1/3Ta2/3)O3-BaWO4 ceramics.Journal of Materials Science: Materials in Electronics,26(2),711-718.
MLA	Yue, Zhanxian,et al."Far-infrared reflection study on crystal structures and dielectric properties of Ba(Mg1/3Ta2/3)O3-BaWO4 ceramics".Journal of Materials Science: Materials in Electronics 26.2(2014):711-718.