J. Appl. Cryst. (2001). 34, 102-107 [ doi:10.1107/S0021889800020495 ]
Abstract: The thicknesses of cobalt coating layers grown on four different types of acicular Fe3O4 particles were estimated from the analysis of lattice images and from the determination of the Co depth profile using high-resolution transmission electron microscopy (HR-TEM) coupled with an energy dispersive X-ray (EDX) analysis system. It was observed that the coating thickness might vary with the crystallite size resulting from the growth mechanism of the coating layer. In this study, two different layer thicknesses, 40 Å and less than 10 Å, were evidenced for crystallite sizes of 390 Å and 350 Å, respectively.
Keywords: powder X-ray diffraction; magnetic recording tape; high-resolution transmission electron microscopy; energy dispersive X-ray analysis; coatings; cobalt/iron oxide.
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