Concept explainers
a)
Interpretation:
Whether metal or ceramic substance that has higher value for ductility, brittleness, resistance to oxidation and coefficient of thermal expansion has to be determined.
Concept Introduction:
Ceramics substance is formed from clay. Substance clay is mainly aluminosilicates that are composed of layers of ions. These layers are separated by water molecules. When clay is heated with calcium carbonate, water molecules are driven off and they get converted into hard pellets called clinkers. Clinkers are mainly mixture of calcium oxide, calcium silicates, and calcium aluminum silicates. These hard pellets then converted into powder form with
b)
Interpretation:
Whether metal or ceramic substance that has higher brittleness has to be determined.
Concept Introduction:
Refer to part (a).
c)
Interpretation:
Whether metal or ceramic substance that has higher value for resistance to oxidation has to be determined.
Concept Introduction:
Refer to part (a).
d)
Interpretation:
Whether metal or ceramic substance that has higher value for coefficient of thermal expansion has to be determined.
Concept Introduction:
Refer to part (a).
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