用EPMAEDS组合仪,对β″氧化铝中的三种典型杂质进行了形貌观察和成分分析,并用电子束诱导离子迁移法,研究了杂质区及正常区的离子电导差异,讨论了不同杂质的特点及对β″氧化铝作用中的危害。 The morphology and composition of three typical impurities in β "alumina were analyzed by EPMAEDS combiner. The differences of ionic conductance between the impurity region and the normal region were studied by electron beam induced ion mobility. The effects of different impurities Characteristics and hazards to beta alumina.