The relaxed state of a type of topological defect (screw dislocation) located in a dispersive (non-local) elastic solid is discussed from a viewpoint of gauge field theory. The starting point of this ...

This is a preview. Log in through your library . Abstract An optical microscope study of the basal faces of partially oxidized (by oxygen) single-crystal flakes of natural graphite has been carried ...

ACCORDING to the theory of Burton, Cabrera and Frank 1, crystals can only grow at supersaturations too low for two-dimensional nucleation, when dislocations are present. Where a screw dislocation ...

Dr. Edwin L. Thomas, professor in the Department of Materials Science and Engineering, and a team of researchers from Texas A&M University and Yonsei University recently discovered a helicoidal-shaped ...

Researchers show that Cartan's First Structure Equation, which relates to edge and screw dislocations in crystal lattices, can be recast in the same form as a basic mathematical formula that governs ...

As the aerospace sector pursues propulsion systems that are cleaner, quieter, and more efficient, materials used in turbine components face ...

Researchers recently discovered a helicoidal-shaped defect in layered polymers, uncovering how solvents can diffuse through layers and produce color changes. Dr. Edwin L. Thomas, professor in the ...