A3:Coincidence Site Boundaries(Chapter 3) 7 points a)A special form of appearance of a high angle grain boundary is a coincidence site boundary,which can be described by the value2.What is meant by a coincidence site lattice,what is the definition for E and which values can E assume in the cubic crystal structures?(3 points) b) The below displayed drawing shows a 22.6(1 00)grain boundary.Highlight all coincidence sites and draw the coincidence site lattice(CSL).Calculate the value E for this boundary.Sketch additionally in a unit cell of the coincidence site lattice the DSC-lattice.(4 points) 0 0=22.62° 33 A3: Coincidence Site Boundaries (Chapter 3) 7 points a) A special form of appearance of a high angle grain boundary is a coincidence site boundary, which can be described by the valueΣ. What is meant by a coincidence site lattice, what is the definition for Σ and which values can Σ assume in the cubic crystal structures? (3 points) b) The below displayed drawing shows a 22.6° (1 0 0) grain boundary. Highlight all coincidence sites and draw the coincidence site lattice (CSL). Calculate the value Σ for this boundary. Sketch additionally in a unit cell of the coincidence site lattice the DSC-lattice. (4 points) θ θ = 22.62° a