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논문 기본 정보

자료유형
학술저널
저자정보
Yu-De Li (National Pingtung University of Technology and Science) Jian-Ming Chen (National Pingtung University of Technology and Science) Ying-Chieh Lee (National Pingtung University of Science and Technology)
저널정보
한양대학교 세라믹공정연구센터 Journal of Ceramic Processing Research Journal of Ceramic Processing Research 제19권 제6호
발행연도
2018.12
수록면
461 - 466 (6page)

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The effects of Ca/Sr ratio and the sintering temperature on the properties of (CaxSr(1-x))ZrO3 (CSZ) ceramics were investigatedin this study. CSZ ceramics were prepared using solid-state reaction process, which were sintered in air at temperaturesranging from 1350 oC to 1450 oC. Their structures were characterized by X-ray Diffraction (XRD), Scanning ElectronMicroscopy (SEM), and Transmission Electron Microscopy (TEM). The change in Ca/Sr ratio significantly affected thecrystalline phase and the dielectric properties of the (CaxSr(1-x))ZrO3 ceramics. The secondary phase, Ca0.15Zr0.85O1.85, wasobserved and increased correspondingly with the rising of sintering temperatures. In order to understand the effects ofsecondary phase on the dielectric properties of CSZ ceramics, the Ca0.15Zr0.85O1.85 phase was prepared individually using solidstatemethod. The Ca0.15Zr0.85O1.85 ceramics sintered at 1500 oC for 2 hours possessed a dielectric constant (εr) of 21.7, adielectric loss (tanδ) of 49.510?4 and an Insulation Resistance (IR) of 2.1 × 1010 Ω. The (Ca0.7Sr0.3)ZrO3 ceramics exhibited thebest dielectric properties, with a permittivity of 29, a dielectric loss (tanδ) of 2.7 × 10?4, and an Insulation Resistance (IR) of2.6 × 1012 Ω.

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