Metallurgy Division Publications - NISTIR 7127

About the Cover Graphic

From left to right the images shown are, respectively:

Fig. 1 Ferromagnetic resonance measurements of a Permalloy film on a specially roughened copper substrate as a function of applied field direction. These measurements are part of a study to determine the effects of roughness on magnetization dynamics.

Fig. 2 An Al₉₁Fe₇Si₂ alloy after electron-beam surface melting with scan velocity of 50 cm/sec (transmission electron micrograph). This observation of a glassy phase which has characteristics of a first-order transformation (as do normal crystalline phases) holds promise for producing stable metallic glass phases.

Fig. 3 FEM model of a rigid 100 nm diameter sphere indenting an Al sample to a depth of 10 nm. The FEM mesh is fine enough to use the predicted elastic displacement fields to generate boundary conditions and initial atom positions for an atomistic simulation using classical potentials.

Fig. 4 MgO cubes with surfaces decorated by small gold particles. These particle ensembles are used in model studies of 3D chemical imaging at the nanoscale (electron tomography).