Fe_3Al合金晶体点阵的Mossbauer谱测定与分析

Measurement and analysis of Mossbauer on Fe_3Al crystal lattice

利用Ｍｏｓｓｂａｕｅｒ谱仪测定了Ｆｅ－２８Ａｌ和Ｆｅ－２８Ａｌ－５Ｃｒ合金ＤＯ＿３型晶胞的Ｍｏｓｓｂａｕｅｒ多数，结果表明，固溶元素Ｃｒ将取代ＤＯ＿３晶胞Ⅰ、Ⅲ位置的Ｆｅ原子。利用上述结果，即可依据相关的电子理论对Ｆｅ＿３Ａｌ合金晶胞的价电子结构进行计算并建立其键络模型。

The DO_3 cell’s Mossbauer parameters of Fe -28Al and Fe -28Al- 5Cr have beendetermined by means of the Mossbauer instrument.It is shown that the chromium will substitutethe Fe atoms of I,Ⅲ sites in DO_3 cell.By these results, the analysis of the valence electronstructure and bond structure mold of DO_3 cells are made according to the empirical electron theoryof solids and molecules.