工業用原料を用いたLa_<1-x>Sr_xGa_<0.8>Mg_<0.2>O_<3-δ>系固体電解質のクエン酸塩法による合成とその材料特性
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概要
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Sr- and Ms-doped lanthanum gallate which exhibits high ionic conductivity was synthesized by a citrate method using industrial raw materials. X-ray diffraction analysis revealed that the powder by a citrate method was single-phase. Electron probe micro analysis (EPMA) showed that the sintered body which was formed by synthesized powder by a citrate method and fired at 1723 K for 6 h had inhomogeneous texture caused by segregation of Sr and Ga elements. Scanning electron microscope (SEM) images and densimetry revealed that the sintered body synthesized by a citrate method had high density, the sintered bodies synthesized by a citrate method had much higher oxide ion conductivity than those by a solid state reaction method.
- 社団法人日本セラミックス協会の論文
- 2003-03-01