| 학회 | 한국재료학회 |
| 학술대회 | 2010년 봄 (05/13 ~ 05/14, 삼척 팰리스 호텔) |
| 권호 | 16권 1호 |
| 발표분야 | B. Nanomaterials Technology (나노소재기술) |
| 제목 | The seed size effect on final size of BaTiO3 synthesized by hydrothermal reaction |
| 초록 | BaTiO3 (BT) has been extensively used in multilayer ceramic capacitors (MLCCs) because of its outstanding dielectric properties. The continual advances in microelectronic packaging and communication technologies necessitate the miniaturization and integration of the MLCCs. Pushed by the current trend of miniaturization of the devices with improved properties, the nanosized BT particles have attracted considerable attention. Generally, BT nanoparticles are synthesized via various wet chemical routes such as hydrothermal method, sol–gel processing, the oxalate route, microwave heating, a micro-emulsion process, and a polymetric precursor method. Especially, hydrothermal method is advantageous to produce nanocrystalline BT particles with superfine particle size, narrow particle size distribution, and good crystallinity. In this study, nanosized BT particles were synthesized by a hydrothermal method using Ba(OH)2H2O and Ti-butoxide as precursor materials. Seed BT nanoparticles prepared by two different processes. Sample A was prepared by adding diethanol amine as a surfactant. And additional filtration process was exploited to prepare sample B. Subsequently, two different see BT nanoparticles were hydrothermally reacted to make final BT particles. The effects of seed size on the final size of BT nanoparticles were investigated. The conditions for preparation of seed BT powder were varied. (solvent, surfactant, filtration and heating time). The synthesized seed BT and final BT nanostructures were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) , transmission electron microscopy (TEM) and Brunauer-Emmett-Teller (BET) |
| 저자 | 문산, 김도경 |
| 소속 | 한국과학기술원 |
| 키워드 | BaTiO3; size |
