毕业论文丝网印刷工艺对掺杂氧化铈基极限电流型氧传感器的性能影响摘要随着我国经济实力的快速增长,伴随产生的环境、资源、社会伦理道德等问题也日益突出。为了达成可持续进展的愿景。我们课题组所讨论的氧传感器恰好响应了国家的号召。当然也具有较好的前景。本篇论文使用LaNi0.6Fe0.4O3(LNF)和 La1-xSrxCo1-yFeyO3(LSCF)固体电子-离子混合导体材料作为氧传感器的致密扩散障碍层材料,通过丝网印刷工艺刷制不同层数的阴极在 SDC 基片上以制备了不同厚度的致密扩散障碍层极限电流型氧传感器。制备固体电解质材料 Ce0.8Sm0.2O1.9(SDC),文中采纳溶胶凝胶法来制备,对制备出的粉体应用 X 射线衍射分析仪(XRD)对该粉体进行了物相分析,同时通过阅读文献制定和优化了烧结制度来制备 SDC 瓷片。采纳溶胶凝胶法制备了致密扩散障碍层粉体 LNF 和 LSCF,应用 X 射线衍射分析仪(XRD)对粉体物相进行了表征。并且在查阅相关文献的条件下,制备出LaNi0.6Fe0.4O3(LNF)和 La1-xSrxCo1-yFeyO3(LSCF)为阴极障碍层的致密扩散粉体。将烧结好的 SDC 瓷片,用砂纸打磨粗糙后,再用松油醇研磨的 LNF 或 LSCF浆料涂刷在 SDC 瓷片上,再进行烧结即可。尔后利用扫描电子显微(SEM)、电化学工作站对其进行断面结构分析和电化学性能分析关键词:氧传感器;极限电流;SDC;致密扩散障碍层;LNF;LSCFSilk screen printing process for doped cerium oxide base of limiting current type oxygen sensor device performance impactAbstractWith the rapid growth of China’s economy , the constant improvement of the comprehensive national power and our country in the world’s superpower status. At present, the research studied the oxygen sensor just responded to the call of the state. the dense oxygen diffusion barrier layer of limiting current type oxygen sensor has higher sensitivity and wider measurement range, the response speed is faster and better stability than before. In the paper, the solid electron-ion mix conductor material LaNi0.6Fe0.4O3(LNF)and La1-xSrxCo1-yFeyO3(LSCF)is used as materials of dense diffusion barrier of sensors and the dense diffusion...