The influence of aluminium substitution on the absorption of gamma-rays in hematite
Murad, Enver;Murad, Enver;
phla1970Vol. 111pp. 79-82
156
enver1970phlathe
Abstract
In aluminous hematites, α-(Fe, Al) 2O 3, absorption of the 14.4 keV gamma-ray used in 57Fe Mössbauer spectroscopy increases with substitution of Fe 3+ by Al 3+. This trend may be masked by a superimposed dependence of absorption on particle size in the microcrystal range below about 400 nm.