Question

Instructions: Read the Problems Carefully! Be sure to clearly indicate the section and the number of the problem you are attempting 10 Points) Atomic bonding is crucial in the determination of materials properties Given the following data, carefully sketch the E vs, distance and E ys distance graphs for the following materials. Indicate Eo in two plots and n in all four plots. Lead-Tin solder 183 C 30 GPa Property Melting Temperature Elastic Modulus Nickel 1455 °C 204 GPa (a) Nickel (b) Lead-Tin solder Name (c) Label the portion on E vs. distance curves that represents the clastic modulus (stiffness) and give a brief explanation 2. (20 Points) Many materials' properties are directly related to their crystal structures. (a) D raw reduced-sphere unit cell structures for FCC, BCC, and HCP crystal structures. FCC: HCP: BCC: (b) Determine the indices for the directions shown in the following cubic unit cell. Briefly show your algorithm 42

Answer 1

adced sphra unt cell shache fr hcpn