Title of article
Surface segregation in FeSi alloys
Author/Authors
Vondr??ek، نويسنده , , M. and Dudr، نويسنده , , V. and Tsud، نويسنده , , N. and Lej?ek، نويسنده , , P. and Ch?b، نويسنده , , V. and Prince، نويسنده , , K.C. and Matol?n، نويسنده , , V. and Schneeweiss، نويسنده , , O.، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2006
Pages
5
From page
4108
To page
4112
Abstract
The surface segregation of a Fe94Si6 and Fe76Si24 alloys was studied using high resolution photoemission spectroscopy with synchrotron radiation at 150–166 eV photon beam energy. During Ar+ ion sputtering and following heat treatment, a SiO2 layer and segregation of Si atoms in three clearly resolved phases occurred. This indicates formation of silicides, mainly Fe3Si and cubic FeSi superstructures. The photoemission measurements were complemented by 57Fe Mössbauer spectroscopy in different modes which gave information about deeper surface layers (approximately 10–30 000 nm) of the samples. The results derived from the Mössbauer spectra support the conclusions concerning phase composition of the surface deduced from photoemission spectroscopy.
Keywords
Fe–Si alloy , photoemission spectroscopy , Segregation , M?ssbauer spectroscopy , surface
Journal title
Surface Science
Serial Year
2006
Journal title
Surface Science
Record number
1699479
Link To Document