论文部分内容阅读
采用光电子能谱分析方法对掺杂 L a2 O3的 Mo粉的性能进行了研究。结果表明 :掺杂 L a(NO3) 3的 Mo O2 粉经过还原处理后 ,Mo粉表面的纳米 L a2 O3微粒可以减小 Mo基体的特征能量损失峰 ,增加 Mo3d光电子谱峰强度 ;由于纳米 L a2 O3粒子在金属 Mo的表面及周围对 Mo起到包埋效应 ,减小了 Mo与大气的接触面积 ,从而使 Mo的抗氧化能力增强
The performance of Mo-doped La 2 O 3 powder was studied by using photoelectron spectroscopy. The results show that the nano-L a 2 O 3 particles on the surface of Mo powder can reduce the characteristic energy loss peak of Mo matrix and increase the peak intensity of Mo 3 d photoelectron after the reduction of the Mo O2 powder doped with L a (NO 3) 3. a2 O3 particles embed Mo on the surface and around Mo, reducing the contact area between Mo and the atmosphere, so that the oxidation resistance of Mo is enhanced