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MSE Ch 1
Materials Science and Engineering
| Term | Definition |
|---|---|
| 5 groups of materials | 1. metals and alloys, 2. ceramics, glass, glass-ceramics, 3. polymers (plastics), 4. semiconductors, 5. composite materials |
| The term ___ refers to load or force per unit area. | stress |
| The term ___ refers to elongation or change in dimension divided by original dimension. | strain |
| ___ ("stress/strain?") causes ___ ("stress/strain?") | stress, strain |
| The level of stress needed to initiate plastic deformation is known as ___. | yield strength |
| Ceramics are defined as ___. | inorganic crystaline materials |
| ___ is an amporphous material. | Glass |
| ___ polymers have good ductility and formability. (long molecular chains are loosely connected) | Thermoplastic |
| ___ polymers are stronger but more brittle. (molecular chains are tightly linked) | Thermosetting |
| ___ contain additives that enhance the properties of polymers. | Plastics |
| The electrical conductivity of semiconducting material is between ___ and ___. | ceramic insulators, metallic conductors |
| In some semiconductors, the level of conductivity can be ___ to enable electronic devices. | controlled |
| ___ are developed to blend properties of different materials. | Composites |
Created by:
drjolley
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