Preferred Orientation in Microstructures

Preferred orientation of planar microstructures determined via statistical best-fit of measured intersection-lines: the ‘FitPitch’ computer program

The ‘FitPitch’ computer program allows characterisation of preferred orientation of planar microstructures in a rock from the orientations of their intersection-lines on different sections. Measured pitch or strike angles of such intersection-lines are fitted to the theoretical intersection-lines of a single model-plane, or a combination of two or three model-planes. The degree of fit is quanti...

Microstructures and Quartz Lattice-Preferred Orientations in the Eclogite-Bearing Migmatitic Gneisses of the D’Entrecasteaux Islands, Papua New Guinea

Microstructure of Horseshoe Nails Using Neutron Diffraction*

Neutron diffraction allows non-destructive testing of the bulk microstructure of mechanical components. The microstructures of horseshoe nails made through three different processes have been explored as a function of position along the nail. Despite all nails being made of similar plain low carbon steel and being process annealed after manufacture, the microstructures are far from the same. Na...

Controlling the crystallographic orientation and easy axis of magnetic anisotropy in L10 FePt films with Cu additive

By co-sputtering Cu and FePt onto Cr90Mo10 underlayers, the preferred orientation and easy axis of magnetic anisotropy of FePt films were successfully changed from the perpendicular to the in-plane direction. The pure FePt film grown on the Cr90Mo10 underlayer showed a (001) preferred orientation with out-of-plane magnetic anisotropy. As 20 and 40 vol.% Cu were doped, the FePt films showed a (2...

Olivine orientation in the ALIIA77005 achondrite

erna77fi)5, a unique achondrite found in the Allan Hills area, Antarctica, contains cumulus olivine and chromite phenocyrsts poikiliticaily enclosed by pyroxene and maskelynite. Petrofabric analysis on olivine shows a weak preferred orientaticin primarity consisting of a YZ foliation plane containing a weak [001] lineation. Secondary maxima are attributed to the development of exaggerated {ll0}...