Task 1 :

Detail the appropriate properties and criteria for the selection of a metallic, ceramic, polymer and composite material

Q1: You are asked to select materials for the manufacture of pistons fitted to a modern petrol engine car. The piston has to be able to withstand the conditions of the environment within which it operates.

State the selection criteria of the chosen materials taking into account the material properties, their cost and their suitability for manufacture.

Your answer must be supported by illustrations and test data sheets.

Task 2 :

Explain the particular characteristics related to the microstructure and macroscopic behaviour of the four categories of engineering materials

Q1: Discuss any three microstructural characteristics (e.g. the grain size and shape or the phase structure) of the following:

• Ceramics
• Composite Materials
• Polymers
• Metals