Influence of Raw Material Ratio of Ba/Ti on Fabrication of Nanocrystalline BaTiO3 Powder

Hui Zhang; Xiao Hui Wang; Zheng Bo Shen; Ya Nan Hao

doi:10.4028/www.scientific.net/KEM.602-603.3

Paper Titles

Preface

Influence of Raw Material Ratio of Ba/Ti on Fabrication of Nanocrystalline BaTiO₃ Powder
p.3

Hydrothermal Synthesis of Spherical Bismuth Titanate Crystals
p.7

Fabrication and Characterization of AgCoO₂ Delafossite by Cation Exchange Process
p.11

Effects of pH on Preparation and Properties of CaTi₂O₄(OH)₂ by Hydrothermal Method
p.15

Solvothermal Synthesis and Characterization of Lithium Tantalate Nanoparticles
p.19

Effects of Single-Substitution and Co-Substitution on BiFeO₃ Nanoparticles
p.23

Growth and Characterization of LaFeO₃ Crystals
p.27

Luminescence Behavior of Tm³⁺ Activated GdAlO₃ Phosphors Synthesized Using Solid-Reaction Method
p.32

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Influence of Raw Material Ratio of Ba/Ti on Fabrication of Nanocrystalline BaTiO₃ Powder

Abstract:

Nanocrystalline BaTiO₃ powder was directly synthesized by a convenient one-step solvothermal route. 8~10 nm BaTiO₃ with different Ba/Ti ratios are obtained by adjusting the raw material ratios. The optimum raw material ratio of Ba/Ti is obtained. And the as-prepared BaTiO₃ nanoparticles are all small and uniform. Influence of the nominal Ba/Ti ratios on diameter of nanocrystalline BaTiO₃ powder was investigated by XRD, TEM and XRF analyses. It was found that the Ba/Ti ratios of the raw materials have a great influence on the process of powder fabrication. When the raw material Ba/Ti ratio is low (<0.9), the reaction cannot be finished and strong BaCO₃ peaks were founded as the alkalinity of the system at the later reaction stage is too low. Besides, the Ba/Ti ratio of the product rises as the raw material Ba/Ti ratio increases.

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Key Engineering Materials (Volumes 602-603)

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3-6

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https://doi.org/10.4028/www.scientific.net/KEM.602-603.3

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March 2014

Authors:

Hui Zhang*, Xiao Hui Wang, Zheng Bo Shen, Ya Nan Hao

Keywords:

BaTiO₃, Nanocrystalline, Solvothermal, Stoichiometry

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