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It was found that hydrogen permeated the bulk of the fluorite-type (CeO 2 ) 0.9 (CaO) 0.1 at 1075-1800 K. Two tube shaped specimens of different lengths were prepared. The hydrogen source gas was H 2 (7.8%)+N 2 which was humidified at 293 K and supplied to the outside of specimens. Ar gas was let flow to the inside of specimens and the permeated...
Interfacial reaction between yttria-stabilized zirconia (YSZ) and yttria-doped ceria (YDC) phases was analyzed by X-ray diffraction (XRD) and scanning electron microscopy (SEM). XRD analysis after heating at 1300 o C indicated that the solid state reaction between YDC and YSZ accompanied a significant shift of the zirconia lines to lower angle. The lines from the ceria phase were only weakened...
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