Phase and Microstructural Transformation of BaTiO3 Powder Synthesized by Solid-State Reaction

Hu, Qiaoyu1,2; Huang, Hao1,2; Wen, Jiaxin1,2,3; Zhang, Lei2; Yu, Hongyu1,2

2020-02-01

RARE METAL MATERIALS AND ENGINEERING   Impact Factor & Quartile

1002-185X

BaTiO3 powder with small particle size and high tetragonality was synthesized by a sanding solid-state phase method with domestic submicron BaCO3 and TiO2 as raw materials. We also studied the effects of calcination temperature, heating rate and holding time on the average particle size and tetragonality of BaTiO3. The results show that the reaction mechanism for the synthesis of BaTiO3 by solid phase reaction can be divided into two stages: when the calcination temperature is lower than 900℃, BaCO3 and TiO2 first form cubic phase BaTiO3. When the calcination temperature rises to 900℃, the cubic phase BaTiO3 begins to transform into a tetragonal phase. Ultrafine BaTiO3 powder with a particle size of 180. 7 nm and a tetragonality (c/a) of 1.0086 is prepared at a calcination temperature of 900℃, a heating rate of 5℃/min, and a 5 h incubation. This work provides a good research idea for the preparation of high performance BaTiO3 powder used for ultra-thin MLCC.
Copyright © 2020, Northwest Institute for Nonferrous Metal Research. Published by Elsevier BV. All rights reserved.

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English

Corresponding

Received date: February 18, 2019 Foundation item: Priority Academic Program Development of Jiangsu Higher Education Institutions (GRCK2017042411005977); Research Fund of Low Cost Fabrication of GaN Power Devices and System Integration, China (JCYJ20160226192639004); Research Fund of AlGaN HEMT MEMS Sensor for Work in Extreme Environment, China (JCYJ20170412153356899); Research Fund of Reliability Mechanism and Circuit Simulation of GaN HEMT, China (2017A050506002) Corresponding author: Hu Qiaoyu, Candidate for Master, Southern University of Science and Technology, Shenzhen 518055, P. R. China, Tel: 0086-755-88018508, E-mail: 11510762@mail.sustc.edu.cn

Science Press

20201508406537

Solid state reactions ; Synthesis (chemical) ; Phase transitions ; Heating rate ; Particle size ; Calcination ; Titanium dioxide

Heat Transfer:641.2 ; Physical Chemistry:801.4 ; Chemical Reactions:802.2 ; Chemical Operations:802.3 ; Inorganic Compounds:804.2 ; Ceramics:812.1

MATERIALS SCIENCE

EV Compendex

1.Shenzhen Key Laboratory of the Third Generation Semi-conductor, Shenzhen; 518055, China
2.Southern University of Science and Technology, Shenzhen; 518055, China
3.Southeast University, Nanjing; 210096, China

Hu, Qiaoyu,Huang, Hao,Wen, Jiaxin,et al. Phase and Microstructural Transformation of BaTiO3 Powder Synthesized by Solid-State Reaction[J]. RARE METAL MATERIALS AND ENGINEERING,2020,49:476-481.

Hu, Qiaoyu,Huang, Hao,Wen, Jiaxin,Zhang, Lei,&Yu, Hongyu.(2020).Phase and Microstructural Transformation of BaTiO3 Powder Synthesized by Solid-State Reaction.RARE METAL MATERIALS AND ENGINEERING,49,476-481.

Hu, Qiaoyu,et al."Phase and Microstructural Transformation of BaTiO3 Powder Synthesized by Solid-State Reaction".RARE METAL MATERIALS AND ENGINEERING 49(2020):476-481.