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从电极、基体及其界面等几个方面,系统地论述了影响ZrO_2氧传感器性能的一些因素。对氧电极微观系统的论述,揭示了ZrO_2氧传感器测氧的本质;在对电极、电极/基体界面的论述中,阐明导致电极污染、电极形貌变化及电极/基体界面上成分互扩散等现象的原因及它们对ZrO_2氧传感器性能的影响,最后,从晶界相和析出相等方面论述了基体ZrO_2中的显微组织变化及其对传感器性能的影响。
Several factors affecting the performance of ZrO_2 oxygen sensor are systematically discussed from the aspects of electrode, substrate and interface. The discussion on the micro-system of oxygen electrode reveals the essence of measuring oxygen by ZrO_2 oxygen sensor. In the discussion of the interface between electrode and electrode / substrate, the phenomena of electrode contamination, electrode morphology change and mutual diffusion of the components on the electrode / substrate interface are elucidated And their influence on the performance of ZrO_2 oxygen sensor. Finally, the microstructural changes in the matrix ZrO_2 and its influence on the performance of the sensor are discussed from the aspects of grain boundary phase and precipitation.