Ceramic Microstructures ’86 pp 187-194 | Cite as
The Structure of a Natural Grain Boundary in a Magnetite Bicrystal Studied by XRD Technique
Abstract
The structure of a natural small angle boundary in a magnetite bicrystal was investigated by X-ray diffraction. This boundary was a ‘general’ type with a mixed twist and tilt character. The grain boundary reflections observed around a 040 matrix reflection were in good agreement with those predicted by Bollmann’s O-lattice theory. These extra reflections appear to arise from a grain boundary dislocation network derived predominantly from a (100) b-plane. The grain boundary thickness estimated from the lengths of the relrods is of the order of four unit cells, which is close to the average spacing of the expected dislocation network in the boundary.
Keywords
Rotation Axis Burger Vector Dislocation Network Tilt Boundary Boundary ReflectionPreview
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