Ceramics and composites Flashcards
1
Q
What is ceramic?
A
Inorganic material
normally an oxide , nitride or carbide of metal
2
Q
Example use of ceramic material
A
- Tools for grinding and cutting
- Refractory tiles used to insulate furnaces
- Electrical insulators
- lenses
- building materials
3
Q
Properties of ceramic materials
A
- Good insulators to heat and electricity
- Difficult to machine due to hardness and breaking
4
Q
What is composite?
A
Material that is made from two or more materials types that are not chemically joined
5
Q
Benefits of composite materials
A
- Create materials with unique combinations
- Lightweight
6
Q
Disadvantages of composite materials
A
- Most composite materials cannot be recycled
- Difficult to separate materials
7
Q
Examples of composite materials
A
- Reinforced concrete
- Fibreglass
- Carbon-reinforced plastics
- Metal matrix composites
8
Q
Properties of reinforced concetre
A
Increased strength under tension
9
Q
What do fibreglass use?
A
Thin fibres of ceramic glass stuck together with polyester or epoxy resin
10
Q
Properties of fibre glass
A
Strong material and formed into complex shape
11
Q
Properties of carbon-reinforced pladtic
A
Products more stronger than fibreglass
12
Q
What products are made from carbon-reinforced platic?
A
Racing car bodies
Helmets
bulletproof vests
