International audienceWe derive the elastic field of a periodic series of straight, inclined, dislocations in a plate using isotropic elasticity for the three components of their common Burgers vector. Explicit expressions are obtained and lead to an easy formulation of spatial derivatives. The displacement field of an isolated dislocation is described asymptotically when the dislocations are distant from each other. A few numerical applications illustrate the stress fields around screw and edge dislocations. In addition, for tungsten, calculations of elastic stored energy give the equilibrium direction of the inclined dislocation as a function of the orientation of its Burgers vector
International audienceThe elastic field around a dislocation piercing obliquely an anisotropic thin crystal is obtained by combining the classical solution applicable to an infinite anisotropic crystal with an analysis using the concept of continuous dislocation density. Numerical applications are presented for inclined dislocations in Ni3Al and Ni
The quantitative study by transmission electron microscopy (TEM) of crystalline defects in ultra‐thin film deposited on a substrate system is often complicated by the elastic interactions between short dislocation segments and the free surface of the film. It is shown, in the frame of isotropic elasticity and two‐beam dark‐field TEM, how to tackle the quantitative identification of short inclined segments of misfit dislocations located at a few tens of nanometers below a free surface. The method, which uses repeatedly the concept of angular dislocation, is applied to some defects observed in a GeSi film deposited on a surface slightly deviating from a (0 0 1) silicon surface.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.