What sets ceramics apart is their set of properties common to nearly all forms.Those properties are （）
A: extreme hardness
B: heat resistance
C: corrosion resistance
D: electrical and thermal conductivity
E: low ductility
F: brittleness
A: extreme hardness
B: heat resistance
C: corrosion resistance
D: electrical and thermal conductivity
E: low ductility
F: brittleness
举一反三
- A major objective in designing new ceramics is to overcome A: Hardness B: Brittleness C: Reactivity D: Conductivity
- The hardness, wear resistance and heat resistance of cemented carbide are higher than that of high-speed steel.
- Which of the following is an advantage of glass lenses? A: Good hardness B: Good heat resistance C: Light D: Thin E: Good impact resistance
- The properties of cast irons are as follows except . A: good castability B: poor mechanical properties C: good abrasion resistance D: poor machinability
- Which of the following does not belong to concrete durability.（） A: resistance to freezing and thawing B: thermal shock resistance C: chloride resistance D: chemical resistance