Pure polyvinylchloride is brittle and stiff

16) Which of the following mechanical properties can be measured / calculated from this tensile stress-strain graph of a generic metal alloy? (pick all that apply) a. Poisson's ratio b. Elastic modulus C. Shear modulus d. Flexural modulus e. Fracture toughness 17) Interstitial sites in a FCC lattice are called a. Rhombohedral and cubic b. Cubic and hexagonal C. Monoclinic and triclinic Stress (MPa) 2000 MPa 2000 1000 1000 0.000 0.005 0.010 0.015 Strain 0.000 0.020 0.040 Strain 0.060 0.080 d. Tetrahedral and octahedral e. Heterogeneous and homogeneous 18) Traditional photovoltaics rely on which structural feature to separate charge carriers? a. The p-n junction b. The grain boundaries C. The twin boundaries d. The electron-hole pair e. The band gap 19) The process by which lithium ions move in to and out of graphite in a lithium-ion battery is called a. Intercalation b. Stacking C. Precipitation d. Phase combination e. lonization 20) A polymer obtained by the polymerization of two types…

Make a comparison between polymers and ceramics based on (a) mechanical properties and (b) on molecular structures under the effect of heating to temperatures.

Materials, properties and testing Describe the effect bend testing have on the thermal properties of steel.