Journal
JOURNAL OF ASIAN CERAMIC SOCIETIES
Volume 10, Issue 4, Pages 713-721Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/21870764.2022.2114671
Keywords
Powders; solid-state reaction (A); dielectric properties (C); thermal properties (C); capacitors (E)
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Funding
- Ministry of Trade, Industry & Energy (MoTIE, South Korea) [20010938]
- Korea Evaluation Institute of Industrial Technology (KEIT) [20010938] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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In this study, solid-state BaTiO3 was successfully synthesized and the factors affecting its properties were identified. Changes in the dielectric constants of sintered specimens were studied to determine the relationship between disintegration conditions, synthetic powders, and sintered specimens. Optimal conditions for uniform solid-state synthesis of BaTiO3 powder were derived for multilayer ceramic capacitor production.
In this study, solid-state BaTiO3 was successfully synthesized after the disintegration of the starting materials (BaCO3 and TiO2) under various conditions. By analyzing the microstructure, tetragonality, crystallinity, and particle size distribution of the synthesized powder, the factors that affected the properties of the BaTiO3 solid-state synthetic powder were successfully identified. Furthermore, the changes in the dielectric constants (temperature characteristic coefficients) of the sintered specimens were investigated using each powder, according to the dielectric characteristics, high-temperature resistance, and temperature, to identify the direct and indirect relationships between the disintegration conditions, synthetic powders, and sintered specimens. Finally, optimal conditions for the uniform solid-state synthesis of BaTiO3 powder for multilayer ceramic capacitor production were derived.
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