Corrosion behavior under accelerated SO₂ corrosion tests of thin iron nitride films prepared by DIBS

Abstract

We report on the corrosion behavior of thin films, prepared by dual ion beam sputtering (DIBS), containing different concentrations of γ -and ε-iron nitride phases. When deposited on Si wafers, the film containing almost equal amounts of γ -Fe 4 N and ε-Fe 3−x N phases shows the highest corrosion resistance. When deposited on iron substrates, all the films show almost total chemical degradation. We attribute this to the open microporosity of the different films deposited.

Mössbauer spectroscopic study of iron–nickel nitrides thin films prepared by ion beam assisted deposition

“…For example, nitrogen-poor phases are usually ferromagnetic at room temperature while nitrogen-rich phases are paramagnetic. We have also recently shown that small differences in the composition of these materials have a large influence on their chemical stability in aggressive atmospheres [2]. In particular, nanocrystalline nitrogen-poor phases of iron nitride are good candidates for high frequency applications in which high saturation magnetization, low coercivity and The sample compositions, as determined by RBS, are also given high permeability are needed.…”