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Unformatted text preview: o Some exhibit magnetic behavior • Polymers = plastics and rubbers, organic compounds that are chemically based on carbon, hydrogen, and other nonmetallic elements o Common polymers: polyethylene, nylon, pvc, silicone rubber o Low densities, not stiff nor strong, extremely ductile and pliable (form into complex shapes) o Soften and decompose easily in moderate temperatures o Low conductivity and nonmagnetic • Composites = composed of 2 or more individual materials that come from metals, viz., ceramics and polymers o goal of composites is to achieve combination of props that are unique to any single material and best characteristics of each of its component materials o most composites are synthetic eg fiberglass o strong and stiff but also brittle, low density • Advanced materials = semiconductors, biomaterials...
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- Fall '10
- Chemical element, nonmetallic elements