The microstructure properties of AlN/GaN/AlN heterostructures on Si (1 1 1) substrate grown by plasma-assisted molecular beam epitaxy (MBE) have been studied and investigated. Reflection high energy electron diffraction ...

Drilling is the most frequently employed operation of secondary machining for composite materials owing to the need for structure joining. However, drilling composite materials present number of problems such as delamination. ...

The identification of material’s specific mechanical properties can be achieved by analyzing its dynamic resonance or dynamic pulse response. This paper proposes a method to find the correlation between a specific ...

Cutting tools for metal cutting have many shapes, each of which are described by their angles or geometries. Several types of angles are important when introducing the cutting tool's edge into a rotating workpiece. This ...