摘要
本文主要采用电子束诱导法对Ｎａ－β－Ａｌ２Ｏ３的离子迁移行为及退化进行了研究。观察到了Ｎａ－β－Ａｌ２Ｏ３在轰击点附近的钠沉积现象，用该法直接证明钠沉积会导致Ｎａ－β－Ａｌ２Ｏ３产生微裂纹，并最终引起破坏的假设，得到了与Ｐｏｉｓｅｕｉｌｅ压力退化模型相同的结果。
The ionic migration behavior was studied by using the EPMA in this paper,whose distinguished feature was that it could observe the ion transportation in site.The results for Na β Al 2O 3 showed that the metal Na could gather with around the bomb point and this gather may cause the crack.It verified De.Jonghe's hypothesis about the damage in Na β Al 2O 3 because of the deposition of metal Na.
出处
《山东陶瓷》
CAS
1998年第3期6-8,共3页
Shandong Ceramics
