| 초록 |
As interest in electric vehicles increases, the demand for Multilayer Ceramic Capacitors (MLCCs) inside is increasing due to rapid development. Since the main material of MLCC is Barium titanate (BaTiO3), the technology to produce high-performance BaTiO3 is inseparable from that of electric vehicles. Most ceramic material manufacturing processes involve only one calcination process. However, in order for complete synthesis to occur, all elements constituting the mixture must undergo a chemical reaction with each other. In this study, the behavior of BaTiO3 characteristics according to the number of calcinations was analyzed. Calcination was performed 5 times to prepare BaTiO3 of high synthesis. Between each calcination process, sieving was performed using a 150 meshes sieve to disperse the powder. To verify the degree of synthesis of the powder, the morphology of the powder was involved using a Scanning Electron Microscope (SEM). And using Energy-dispersive X-ray (EDX), the presence or absence of carbon, a component of barium carbonate that had not yet reacted, was confirmed. Additionally, the degree of response was confirmed using Differential Scanning Calorimeter (DSC) and Thermogravimetric Analyzer (TGA). As a result, it was observed that the reaction between the particles decreased from the number of calcinations of 4 or more times. From the above study, it was confirmed that the number of reactions affects the degree of BaTiO3 synthesis. As a result, it is expected to be meaningful in making high-performance MLCCs. |
