a$)$ Using sketches, please describe the different methods to produce metallic

powders and the morphology of the powder particles obtained.

b$)$ Sketch and outline the four stages of sintering of ceramic powders. How does

the sintering temperature affects the porosity of the ceramic material

produced?

c$)$ Outline, using a flow chart, the different general stages in the production of a

ceramic from raw material to finished product.