EF 152 Materials Recitation February 3, 2009. Materials Science and Engineering Department. Materials Recitation. Space Elevator Material Requirements Affect of Heat Treatment Demo Material Applications Heat Sink Biomimetic Lens SpaceShipOne Hot Wire & Shape Memory Demo
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Materials Science and Engineering Department
Geostationary: satellite stays above same point on earth’s surface (geosynchronous)
σUTS/ρ = 5.3E7 m2/s2Specific Strength
MATERIALS DEVELOPMENTMaterials Science & Engineering
Heat generated by electronic devices must be dissipated to improve reliability and prevent failure.
Heat Sink Design
Which has highest thermal conductivity?
* funded by DARPA
Refractive index of film corresponds to a thickness-weighted average of the indices of the component polymers
99/1 PMMA/PC, n = 1.491
98/2 PMMA/PC, n = 1.492
50/50 PMMA/PC, n = 1.535
2/98 PMMA/PC, n = 1.578
1/99 PMMA/PC, n = 1.579
0/100 PMMA/PC, n = 1.580GRIN Film
Dr. Kevin Kit