A facile co-precipitation synthesis of hexagonal (Zn, Mg)TiO3
A facile co-precipitation synthesis of hexagonal (Zn, Mg)TiO3
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六方晶系 (Zn, Mg)TiO3 的简便共沉淀合成
DOI:
10.1016/j.powtec.2013.02.041
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发表时间:
2013-05
期刊:
影响因子:
--
通讯作者:
K. He, R.Y. Hong*, W.G. Feng, D. Badami
中科院分区:
文献类型:
--
作者:
K. He, R.Y. Hong*, W.G. Feng, D. Badami
Dielectric zinc magnesium titanate (ZMTO) was synthesized by a facile co-precipitation method using TiOSO4as the Ti source. The decomposition and phase evolvement of the as-prepared precipitates during heat treatment were characterized by thermogravimetry analysis (TGA) and Fourier-transforming infrared (FT-IR) spectroscopy. X-ray diffractometry shows that different pH levels have a significant influence on the crystallization of the as-prepared precipitate due to the magnesium doping content. SEM images and EDS data show that fine hexagonal (Zn, Mg)TiO3powders with a Mg doping content of 2.29at.% could be obtained at a pH of 9 and a calcination temperature of 800°C. After sintering at 1000°C, hexagonal (Zn, Mg)TiO3demonstrated a dielectric constant of 26–24 along with a low dielectric loss of 9.82×10−4–6.35×10−4at measurement frequencies between 108and 109Hz.
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