Homogeneous precipitation synthesis and electrical properties of scandia stabilized zirconia
作者： Gang Xu , Yawen Zhang , Chunsheng Liao , Chunhua Yan
DOI: 10.1016/S0038-1098(01)00444-6
关键词: Dielectric spectroscopy 、 Chemical engineering 、 Differential thermal analysis 、 Scanning electron microscope 、 Cubic zirconia 、 Grain boundary 、 Crystallography 、 Sintering 、 High-resolution transmission electron microscopy 、 Materials science 、 Transmission electron microscopy
摘要: Abstract Homogeneous precipitation employing urea was utilized to prepare ultrafine and weakly-agglomerated 8 mol% scandia-stabilized zirconia (8ScSZ) powders. Their crystal structure, particle electrical properties were investigated by scanning electron microscopy, high resolution transmission X-ray diffraction, thermo-gravimetry differential thermal analysis, BET surface area impedance spectroscopy, respectively. 8ScSZ polycrystals in a pure cubic phase obtained after sintering at low temperature of 600 °C. Elevating can increase the oxide ion conductivity, especially grain boundary conductivity.
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