Chapter 7

Question 1

Define: Traditional Ceramics

Answer 1

Silicates used for clay products such as pottery and bricks, common abrasives, and cement.

Question 2

Define: New Ceramics

Answer 2

More recently developed ceramics based on non-silicates such as oxide and carbides, and generally possessing mechanical or physical properties that are superior or unique compared to traditional ceramics

Question 3

Define: Glass

Answer 3

Based primarily on silica and distinguished from the other ceramics by their noncrystalline structure.

Question 4

Define: Vitreous

Answer 4

Meaning “glassy” or possessing the characteristics of glass

Question 5

Define: Refractory

Answer 5

Refractory ceramics, often in the form of bricks, are critical in many industrial processes that require furnaces and crucibles to heat and/or melt materials. Often alumina together with silica

Question 6

Define: Abrasive

Answer 6

Traditional ceramics used for abrasive products, such as grinding wheels and sandpaper, are alumina and silicon carbide.

Question 7

Define: Cemented Carbide

Answer 7

Carbide powders bonded with metals such as cobalt or nickle to create a composite material; also known as “cermet”

Question 8

Define: Devitrification

Answer 8

The tendency to crystallize from the glassy state.