Abstract
Barium titanate is a strong dielectric compound material with high dielectric constant and low dielectric loss. It is one of the most widely used materials in electronic ceramics. Barium titanate powders with different micromorphologies have different uses. Barium titanate powders with different micromorphology were prepared by hydrothermal method using titanium tetrachloride, barium chloride dihydrate as raw materials and glycol solution as reaction medium. In this study, XRD, SEM, Raman, LAS, TEM, EDI and other comprehensive analysis methods were used to study the effect of raw material concentration on the morphology of hydrothermal synthesis barium titanate powder. When the concentration of titanium ion is 0.02 mol/L, the resulting barium titanate has a fibrous morphology. With the increase of reactant concentration, the morphology of Barium titanate powder gradually becomes granular. This is because the lower the reactant concentration, the less the number of nucleation during crystal growth, the lower the competition between crystal nuclei for raw materials, and barium titanate is more inclined to preferentially oriented growth.
Data availability
The data that support the findings of this study are available from the corresponding author upon reasonable request.
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Funding
The present work was supported by the National Natural Science Foundation of China (52102139), the National Key Research and Development Program of Shaanxi Province (2021GY-224), the Key Laboratory of Engineering Dielectrics and Its Application (Harbin University of Science and Technology), Ministry of Education (KFM202106) and Graduate Innovation Fund of Shaanxi University of Science and Technology.
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Ronghui Ye: Investigation, Data curation, Writing—original draft. Zhuo Wang: Conceptualization, Funding acquisition, Project administration, Supervision. Ying Xue: Software. Jingteng Kang: Supervision, Investigation. Ting Zhao: Supervision, Investigation.
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Ye, R., Wang, Z., Xue, Y. et al. Effect of raw material concentration on the morphology of nano-barium titanate ribbon-like fibers synthesized by hydrothermal. J Mater Sci: Mater Electron 35, 1750 (2024). https://doi.org/10.1007/s10854-024-13472-w
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DOI: https://doi.org/10.1007/s10854-024-13472-w