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Material Science - Assignment Aluminium is used in food containers for different reasons: it provides a very good barrier to protect food against light and air and preserves food quality; it is corrosion resistance; it can be recycled and designed individually according to customers' requirements; it can be produced in different sizes and shapes due to its atomic bonding and its FCC crystalline structure. However, in order to produce aluminium cans, manufacturers must strip-mine bauxite ore to gain alumina. This method leaves behind liquid waste that can pollute soil and groundwater. 1. Suggest one other type of other crystalline solid (it can be polymer, ceramics, or other metal), can replace aluminium as food packaging but with less impact on our soil and groundwater. Justify your answer (cost of the material is not a factor). 2. Based on your suggestion, explain the mechanical properties of the material and relate these properties to the atomic bonding and the crystalline structure of the material. Compare these properties to aluminium. 3. In term of its ability to be shaped, will it be harder or easier to shape compare to aluminium? Explain this by comparing the slip systems of the two materials. 4. Discuss the limitation of your choice of material. 5. Now, think of 50 years from the time this material has been mass produced and used as food packaging, how will this impact our society in general? Note: Your choice of materials is unlimited, you can choose any type of crystalline solids out there as long as you can justify the answer for this type of application. You can use diagram, google images, research findings or statistical analysis to help strengthen your answer. But your answer is limited to a single A4 paper.