Ceramic Materials Quiz

Which of the following is an example of a fired-clay product?

• Lead glass

• Alumina

• Bricks

• Quartz

In the wurtzite structure, what is the coordination number of oxygen atoms?

• 2

• 3

• 4

• 6

What happens if the silicon-oxygen tetrahedron chain is continued?

• Formation of beryllium oxide

• Formation of aluminum oxide

• Formation of silicon carbide

• Formation of silicon nitride

What is the typical application for Stoneware?

• Glazed drainage pipes, roofing tiles, tableware, tiles

• Porous drainage pipes, ceramic filters, wall tiles, bricks

• Fine tableware

• Scientific equipment

What is the purpose of adding stabilisers to glass?

• To form the basic network of the glass

• To modify the properties of the glass

• To reduce the softening range of the batch

• To reduce the resistance of glass to chemical attack

What is the main reason for the plastic deformation of crystalline ceramics?

• Movement of dislocations along well-defined planes

• High temperature

• High pressure

• Chemical reactions

What is the result of plastic deformation by slip in ceramic crystals?

• High compressive strengths

• Low compressive strengths

• High tensile strengths

• Low tensile strengths

What is the effect of stress concentrations in ductile materials?

• They cause brittle failure.

• They are relieved by localized plastic deformation.

• They do not affect the material.

• They increase the tensile strength.

What is the characteristic of non-crystalline solids regarding plastic deformation?

• They exhibit long-range order.

• They possess slip planes.

• They do not exhibit long-range order.

• They deform by melting.

What happens if the clay slip is allowed to continue until the entire contents of the mould solidify?

• A hollow cast is made

• A solid cast is made

• The clay slip remains liquid

• The mould breaks