Fourier transform far-infrared reflection spectroscopy of Ba[Zn1/3(Nb1-xTax)2/3]O3 solid solutions | |
Shi, Feng; Gu, Yu Fen; Li, Cui Xia | |
2014 | |
会议日期 | August 23, 2013 - August 26, 2013 |
会议地点 | Harbin, China |
关键词 | Crystal structure Electromagnetic wave reflection Functional materials Phonons Sintering Solid solutions X ray diffraction Zinc Far-infrared Hexagonal structures Lattice structures Microwave dielectric ceramics Phonon mode Reflection spectroscopy Solid state sintering Structural evolution |
卷号 | 873 |
DOI | 10.4028/www.scientific.net/AMR.873.316 |
页码 | 316-321 |
英文摘要 | Ba[Zn1/3(Nb1-xTax)2/3]O3 (BZNT, x = 0.0, 0.2, 0.4, 0.6, 0.8, 1.0) solid solutions were synthesized by conventional solid-state sintering technique. Fourier transform far-infrared reflection spectroscopy (FTIR) and X-ray diffraction (XRD) were employed to evaluate the correlation between crystal structures and vibration modes of these solid solutions as a function of Nb5+ ions replaced by Ta5+ ions. Spectroscopic and structural data show sensitivity to the sample structural evolution with Ta5+ concentration. XRD result shows that the peaks shift to lower angle, i.e. higher d-spacing, with the increase in Ta5+content, and the lattice structures have changed from cubic structure to hexagonal structure gradually with the increase in the unit cell volume due to the substitution of Ta5+ to Nb5+. The phase transition is also verified by the FTIR spectra. The phonon modes of the vibration spectra were assigned, the position and width were determined, and the correlation of phonon vibrations with the crystal structures for the different atoms substituted in the B"-site was found. © (2014) Trans Tech Publications, Switzerland. |
会议录 | Advanced Materials Research |
会议录出版者 | Trans Tech Publications Ltd, Kreuzstrasse 10, Zurich-Durnten, CH-8635, Switzerland |
语种 | 英语 |
ISSN号 | 10226680 |
内容类型 | 会议论文 |
源URL | [http://ir.lut.edu.cn/handle/2XXMBERH/117357] |
专题 | 兰州理工大学 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 | Shi, Feng,Gu, Yu Fen,Li, Cui Xia. Fourier transform far-infrared reflection spectroscopy of Ba[Zn1/3(Nb1-xTax)2/3]O3 solid solutions[C]. 见:. Harbin, China. August 23, 2013 - August 26, 2013. |
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