Synthesis and Characterization of Li-Ti-O Nano-Composites and Their Doped BaTiO3 Based X7R-Type Ceramics

Qing Zhang; Rui Yuan Niu; Min Wang; Bin Cui; Zhu Guo Chang

doi:10.4028/www.scientific.net/AMR.148-149.1575

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 148-149Synthesis and Characterization of Li-Ti-O...

Synthesis and Characterization of Li-Ti-O Nano-Composites and Their Doped BaTiO₃ Based X7R-Type Ceramics

Abstract:

Li-Ti-O (abbreviated as LTO) nano-composites were synthesized via sol-gel process, and then doped BaTiO3 based X7R type ceramics. The LTO nano-composites and their ceramics were characterized by means of thermaogravimetric, Fourier-transform infrared, X-ray diffraction methods, transmission electron microscopy. We also characterized the dielectric properties of the LTO doped BaTiO3 based ceramics of X7R type. The results indicated that LTO nano-composites were nanometer scale powders. The pH value and calcining temperature had an influence on particle size of LTO sintering aids. At pH about 3 and with calcining at 600 °C, the nano-composites attained minimum particle size (about 10 nm). By adding 0.10 wt% of the LTO nano-composites, the temperature permittivity achieved about 4200 when sintered at 1240 °C for 4 h, and the dielectric properties met X7R standard.

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Advanced Materials Research (Volumes 148-149)

Pages:

1575-1579

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.148-149.1575

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Online since:

October 2010

Authors:

Qing Zhang, Rui Yuan Niu, Min Wang, Bin Cui, Zhu Guo Chang

Keywords:

BaTiO₃ Ceramic, Dielectric Property, Nanocomposite, Sol-Gel Method, X7R

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