Abstract
Ba[(Zn1−x Mg x )1/3Nb2/3]O3 (short for BZMN, x = 0.4, 0.6, 0.8) solid solution ceramics were sintered by conventional solid-state sintering technique at different temperatures. Effects of sintering temperatures on phonon modes and crystal structures of BZMN ceramics were investigated by X-ray diffraction and vibration spectra (Raman spectroscopy as well as Fourier transform far-infrared reflection spectroscopy) techniques. The results reveal that sintering temperatures have an obviously influence on phonon modes, which are closely related to the 1:2 ordered structures. For the samples where x = 0.4, they possess the cubic structure (Pm3m), and the ordering degree decreases with the increase in the temperature. For the samples where x = 0.6, phase transition occurs after sintered at 1,500 °C, i.e., a 1:2 ordered monoclinic unit cell is formed. For the samples where x = 0.8, they possess the hexagonal structures (\(P\bar{3}m1\)), and the ordering degree increases with the increase in the temperatures.
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Dongmei Wei, Helei Dong, Han Zhang and Li Wang have contributed equally to this article.
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Wei, D., Dong, H., Zhang, H. et al. Correlation between crystal structures and vibration modes of Ba[(Zn1−x Mg x )1/3Nb2/3]O3 ceramics as a function of sintering temperatures. J Mater Sci: Mater Electron 25, 2748–2758 (2014). https://doi.org/10.1007/s10854-014-1939-6
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DOI: https://doi.org/10.1007/s10854-014-1939-6