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RB_5型稀土与过渡族金属间化合物,是优良的磁性材料与贮氢材料,对它们进行研究具有重要的意义。LaFeNi_4是其中之一,它具有优良的氢海绵特性。Van Mal、三沢俊平等曾对它进行过研究,我们曾用不同的活化处理工艺,获得了与他们不同的结果。对于LaNi_5型材料过去人们用希土源进行过Mssbauer效应的研究,但是用常见的~(57)Co。源对它们进行Mssbauer效应的研究尚少有报道。下面我们探索用~(57)Co源对LaFe_yNi_(5-y),进行Mssbauer效应的研究,并辅以X射线结构分析。
RB_5 rare earth and transition metal intermetallic compounds, is an excellent magnetic materials and hydrogen storage materials, to study them is of great significance. LaFeNi_4 is one of them, which has excellent hydrogen sponge properties. Van Mal, Miyake Jun equality had carried out research on it, we have used different activation process, get their different results. For LaNi_5 materials, Mssbauer effect has been studied in the past with the use of a sod source, but using the common ~ (57) Co. Few studies have been reported on their Mssbauer effect. In the following, we explore the Mssbauer effect of LaFe_yNi_ (5-y) with ~ (57) Co source, supplemented by X-ray structure analysis.