纳米晶软磁合金Fe_(73.5)Cu_1Nb_3Si_(13.5)B_9的X射线光电子谱分析

XPS Analysis of Nanocrystalline Fe_73.5Cu_1Nb_3Si_13.5B_9Alloy

本文研究了纳米晶软磁合金Ｆｅ７３５Ｃｕ１Ｎｂ３Ｓｉ１３５Ｂ９在制备态、５５０℃氩气退火和５００℃空气退火后表面层的元素状态及分布。在制备态样品的表面有少量的氧；经５５０℃氩气退火后表面含氧量有所增加；而经过５００℃空气退火后，样品表面具有很高的含氧量，富氧层深度也达到２４ｎｍ以上。样品表面的氧主要以Ｆｅ２Ｏ３及ＳｉＯ２的形式存在。

Distribution and state of elements at the surface of as-cast and annealed nanocrystalline Fe_73.5Cu_1Nb_3Si_13.5B_9 alloy was investigated by XPSThere is a little oxygen in the surface of the as-cast sample,while oxygen is enriched after Ar-annealing at 550℃ and the content of oxygen is remarkably increased after air-annealing at 500℃ with the oxygen-enriched layer of 24nmOxygen in the surface exists in form of Fe_2O_3 and SiO_2