| Abstract Scope |
We recently demonstrated that nearly all grain boundaries (GBs) are chiral. In this talk, we discuss the significant implications of this discovery for how GBs are described, compared, and classified. In particular, GB chirality reveals a fundamental deficiency of the ubiquitous misorientation/GB normal description: almost every GB has an opposite-handed counterpart that is distinct in structure and properties, yet is assigned the same misorientation and GB normal by the traditional parameterization. This discovery raises a practical question: how can we determine whether a given GB is the right- or left-handed variant? To answer this, we present a method for identifying the canonical handedness of arbitrary GBs. |