Morphology and dislocation structure of iron whiskers

Abstract

The morphology and dislocation structure of iron whiskers grown by the hydrogen reduction of ferrous chloride were studied by means of optical and scanning electron microscopy and X-ray diffraction topography. Iron whiskers grow chiefly in the [111] and [001] directions and are bounded by {110} and {100} faces. Dislocations in as-grown whiskers are of the screw type and their Burgers vectors are parallel to 〈111〉 directions and lie in {110} or, more rarely, in {211} planes.