Fabricating Uniform Tetragonal Barium Titanate Nanocrystals via Sand Milling Assisted by an Innovative Two-Step Calcination

Qian Cheng Zhao; Xiao Hui Wang; Jin Yong Kim; Hui Zhang; Hui Ling Gong; Bing Cheng Luo; Long Tu Li

doi:10.4028/www.scientific.net/SSP.281.71

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HomeSolid State PhenomenaSolid State Phenomena Vol. 281Fabricating Uniform Tetragonal Barium Titanate...

Fabricating Uniform Tetragonal Barium Titanate Nanocrystals via Sand Milling Assisted by an Innovative Two-Step Calcination

Abstract:

Sand-milling machine was firstly utilized to crush and disperse the raw materials. A homogenous and well-dispersed mixture of TiO₂ and BaCO₃ (<30nm) was obtained. The solid state reaction temperature can be reduced by 200°C for nanosized reactants compared with coarse ones. In order to increase tetragonality of nanosized BaTiO₃, an innovative two-step calcination method, which includes solid state reaction process between reactants at a low temperature T₁ and phase transition process at a high temperature T₂, was subsequently adopted. The microstructure evolution of BaTiO₃ by two-step calcination was investigated as a function of T₂ and corresponding dwelling time t₂. Pure-perovskite BaTiO₃ nanopowders with the mean particle size as small as 75nm and tetragonality (c/a ratio) higher than 1.0096 could be fabricated by two-step calcination through altering T₂ and/or its dwelling time t₂.

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Solid State Phenomena (Volume 281)

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71-77

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https://doi.org/10.4028/www.scientific.net/SSP.281.71

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Online since:

August 2018

Authors:

Qian Cheng Zhao, Xiao Hui Wang*, Jin Yong Kim, Hui Zhang, Hui Ling Gong, Bing Cheng Luo, Long Tu Li

Keywords:

Barium Titanate, Particle Size, Sand-Milling, Tetragonality, Two-Step

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References

[1] G.H. Hertling, Ferroelectric Ceramics: History and Technology, J. Am. Ceram. Soc., 82(1999) 797-818.

Google Scholar

[2] X. Wang, R. Chen, Z. Gui, L. Li, The Grain Size Effect on Dielectric Properties of BaTiO3 Based Ceramics, Mater. Sci. Eng., B, 99(2003) 199-202.

DOI: 10.1016/s0921-5107(02)00520-2

Google Scholar

[3] K. Niesz, T. Ould-Ely, H. Tsukamoto, D. E. Morse, Engineering Grain Size and Electrical Properties of Donor-Doped Barium Titanate Ceramics, Ceram. Int., 37(2011) 303-311.

DOI: 10.1016/j.ceramint.2010.08.040

Google Scholar

[4] Q. Zhao, H. Gong, X. Wang, I.W. Chen, L. Li, Superior Reliability Via Two-Step Sintering: Barium Titanate Ceramics, J. Am. Ceram. Soc. 99(2016) 191-197.

DOI: 10.1111/jace.13940

Google Scholar

[5] C. Baek, J.E. Wang, S. Moon, C. Choi, D.K. Kim, Formation and Accumulation of Intragranular Pores in the Hydrothermally Synthesized Barium Titanate Nanoparticles, J. Am. Ceram. Soc. 99(2016) 3802-3808.

DOI: 10.1111/jace.14397

Google Scholar

[6] D.F.K. Hennings, C. Metzmacher, B.S. Schreinemacher, Defect Chemistry and Microstructure of Hydrothermal Barium Titanate, J. Am. Ceram. Soc. 84(2001) 179-182.

DOI: 10.1111/j.1151-2916.2001.tb00627.x

Google Scholar

[7] M. Shima, J. Thachil, S.C. Nair, Synthesis and Size Control of Tetragonal Barium Titanate Nanopowders by Facile Solvothermal Method, J. Am. Ceram. Soc. 95(2012) 2429–2434.

DOI: 10.1111/j.1551-2916.2012.05085.x

Google Scholar

[8] M.T. Buscaglia, M. Bassoli, V. Buscaglia, Solid-State Synthesis of Ultrafine BaTiO3 Powders from Nanocrystalline BaCO3 and TiO2, J. Am. Ceram. Soc. 88(2010) 2374-2379.

DOI: 10.1111/j.1551-2916.2005.00451.x

Google Scholar

[9] W. Zhu, S. Akbar, R. Asiaie, Sintering and Dielectric Properties of Hydrothermally Synthesized Cubic and Tetragonal BaTiO3 Powders, Jpn. J. Appl. Phys. 36(1997) 214-221.

DOI: 10.1143/jjap.36.214

Google Scholar

[10] W. Maison, R. Kleeberg, R.B. Heimann, Phase content, tetragonality, and crystallite size of nanoscaled barium titanate synthesized by the catecholate process: effect of calcination temperature, J. Eur. Ceram. Soc. 23(2003) 127-132.

DOI: 10.1016/s0955-2219(02)00071-7

Google Scholar