摘要
利用电子能量损失谱(EELS)和俄歇电子能谱(AES)研究室温下铌的初始氧化过程,研究表明:清洁表面铌的EELS的实验值与理论值较为符合;随着氧化程度的加剧,其体等离子体(BP)、表面等离子体(SP)以及价带间跃迁所造成的电子能量损失峰发生了明显的偏移和强弱的变化,也解释了Nb→NbO→NbO2的初始氧化过程;另外,铌在潮湿空气里氧化1周,在其表面只生成很薄一层的Nb2O5氧化层。
The initial oxidation processes of niobium at normal temperature was studied with electron energy loss spectroscopy(EELS)and auger energy spectroscopy (AES) in this paper. It is showed that experimental results of clear surface niobium were in agreement with calculated results and that the distinct shifts in bulk plasmon, surface plasmon and interband transitions occur as a result of oxidation of niobium, And a procession- Nb-->NbO-->NbO(2) is denoted. In addition, a very thin film of Nb(2)O(5) will be formed on the surface of niobium in the moist air after a week.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2004年第8期839-842,共4页
Rare Metal Materials and Engineering
基金
中国工程物理研究院基金资助项目(20010334)
