Materials Quiz Flashcards
1
Q
Polystyrene
A
- Properties: low density, easily foamed. Prevalent in non-criritcal applications (toys, food)
1
Q
Carbon Fiber Reinforced Polymers (CFRP)
A
- Constituents: carbon fiber + epoxy (or others)
- Properties: airplane composites, turbine blade composites
2
Q
Reinforced Concrete
A
- Constituents: concrete + rebar
- Properties: high toughness compared to pure concrete
3
Q
Acrylonitrile-butadiene-styrene (ABS)
A
- Properties: common 3D printing polymer
4
Q
Epoxy
A
- Constituents: thermoset
- Properties: stiff, cross-linked
5
Q
Titanium
A
- Constituents: Ti
- Properties: Highest strength-to-density ratio of any metal, resists corrosion
5
Q
Silicon Carbide
A
- Constituents: Si + C
- Properties: Very hard ceramic used as an abrasive
6
Q
Polyethylene
A
- Properties: Plastic bags, #2 and #4
7
Q
Lithium Cobalt Oxide
A
- Constituents: Li + Co + O
- Properties: High power density battery electrode material
8
Q
Fiberglass
A
- Constituents: glass + epoxy (or others)
- Properties: small boats, lightweight and tough
9
Q
AISI - 4140
A
- Constituents: Fe + Cr + Mo + C + Mn + Si
- Properties: Strong and hard steel, used in aircrafts
9
Q
Bronze
A
- Constituents: Cu + Sn
- Properties: Harder than copper
11
Q
AISI - 1020
A
- Constituents: Iron + (low) carbon
- Properties: Common ductile steel
12
Q
Polypropylene
A
- Properties: Thermal textiles, packaging and labels, #5
13
Q
Cardboard
A
- Constituents: cellulose pulp
- Properties: abundant, lightweight, stiff
14
Q
PVC
A
- Properties: chemical resistance, used for water pipes, credit cards, #3
15
Q
Tool Steel
A
- Constituents: Fe + (0.7 - 1.5%) C
- Properties: High hardness steel – holds a cutting edge
16
Q
Brass
A
- Constituents: Cu + Zn
- Properties: more ductile than copper, nice appearance
16
Q
Carbon Nanotube
A
- Constituents: C
- Properties: Ultra high Young’s Modulus (1 TPa)
17
Q
Stainless Steel
A
- Constituents: Fe + (>11%) Cr + C
- Properties: Avoids corrosion
19
Q
Concrete
A
- Constituents: Water + stone + cement (CaO and SiO2) Calcium silicates and oxides
- Properties: durable, stone-like material
20
Q
Porcelain
A
- Constituents: Kaolinite = Al + Si + O + H, type of clay
- Properites: withstands high temperatures, stiff, brittle
22
Q
Polycarbonate
A
- Properties: very durable, transparent
23
Q
Calcium Carbonate
A
- Constituents: Ca + O + C
- Properties: Main component of shells
24
Acrylic
* Properties: less flexible than polycarbonate, transparent, durable
25
Magnesium
* Constituents: Mg
* Properties: Not naturally found, good alloy metal
27
Polyester
* Constituents: PET (Polyethylene terephthalate)
* Properties: Used for soda bottles, textile fibers, #1
28
Aluminum
* Constituents: Al
* Properties: Ultra-lightweight metal, resists corrosion, abundant
29
Carbon Fiber
* Constituents: C
* Properties: Very strong, graphitic, high strength-to-weight ratio
30
Steel
* Constituents: Iron + carbon intersititials
* Properties: Tunable strength, stiffness
31
Gorilla Glass
* Constituents: Glass + alkaline salts
* Properties: Scratch-resistant, made with residual stress
32
Hydroxyapatite
* Constituents: Ca + P
* Properties: bone mineral, high strength
33
Copper
* Constituents: Cu
* Properties: High conductivity
34
Cast Iron
* Constituents: Fe + (2.1 - 4%) C
* Properties: Very high hardness steel -- brittle
35
Nylon
* Properties: Hydrogen bonding, very strong and flexible
36
Soda-lime Glass
* Constituents: Si + O + Na + Ca + O
* Properties: Silicates develop a net negative charge during covalent bonding that is offset by Na+ and Ca+2
37
Teflon
* Properties: hydrophobic, non-stick
