In previous activities you saw that experimental evidence supports the theory that matter, such as electrons and subatomic particles, exhibit wave behavior. Wave behavior is utilized by the electron microscope, which enables us to look at nanometer-sized details in objects. we will see that this wave behavior is critical to understanding a number of phenomena, including energy in atoms and soli...

Microstructure can have profound effects on the bulk mechanical properties of a material, such as its strength and susceptibility to failure under stress. Several well known methods for imaging microstructure exist, including essentially destructive techniques such as etching and electron back-scattered diffraction, and contact techniques such as the scanning acoustic microscope. SRAS – spatial...

Abstract In this study, a kind of structural gradient metal hollow spheres composites (SG-MHSCs) were fabricated using two kinds 316L stainless steel with different diameters and A356 aluminum through the casting method. Then density SG-MHSCs was measured by direct measurement; microstructure characterized Scanning Electron Microscope. Meanwhile, acoustic performance MHSCs tested impedance tube...