Figure 4
From: Triple and double twin interfaces in magnesium—the role of disconnections and facets
Tension-compression (T–C) double twin facets for types 1 (a) and (b) and 2 (c) and (d), \(q=1.624\), projected onto the plane of shear, common to the two twinning mechanisms. \(\mu\) sites, in black, belong to the matrix; \(\lambda\) sites, in red, belong to the primary twin; \(\nu\) sites, in white, belong to the secondary twin. The hexagonal unit cells are similarly drawn for each lattice. The translation vectors that define the disconnections are denoted by the names of the planes they lie in, in order to highlight the kinds of facets they can form.
