摘要
利用低温EXAFS和XANES方法研究了晶态Se在机械球磨过程中的结构变化 .结果显示在球磨过程中引入链状分子间的中程无序 ,破坏了分子间的结合 ,而分子内Se原子以共价键结合 。
The extended X ray absorption fine structure (EXAFS) and respective near edge absorption spectra (XANES) were recorded at low temperatures for selenium ball milled at various stages. The results prove that ball milling has induced middle range disorders of intrachain corrdinations, while the interchain structure of Selenium changes small due to the very strong covalent interaction.
基金
中科院金属研究所快速凝固与非平衡实验室开放基金资助项目
关键词
硒
扩展X-射线吸收精细结构谱
X-射线近边吸收谱
机械球磨
非晶化
Selenium
extended X ray absorption fine structure and near edge absorption structure spectra
ball milling
amorphization
