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Material Science

Material Science. By: Juan Carlos Uribe. Δ T = 1,000,000 °C / s. Non-crystalline, amorphous structure No dislocations No grain boundaries. High elastic limit High strength. Metals used:. Zirconium Beryllium Titanium. Copper Nickel. Discovered (1960’s)

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Material Science

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  1. Material Science By:Juan Carlos Uribe

  2. ΔT = 1,000,000 °C / s

  3. Non-crystalline, amorphous structure • No dislocations • No grain boundaries • High elastic limit • High strength

  4. Metals used: Zirconium Beryllium Titanium Copper Nickel Discovered (1960’s) California Institute of Technology William L. Johnson Atakan Peker

  5. Golf clubs • Fishing rods • Car bumpers • Aircraft skins • Artificial joints • Dies • Cutting tools • Others

  6. Small dimensions (due to cooling) • Raw materials expensive • Approx. from $500 per pound • Production expensive

  7. HOT SPARKS FLY FROM A NOTCHED SAMPLE OF BULK METALLIC GLASS FRACTURED BY A BLOW FROM A PENDULUM FRACTURED SURFACE SHOWS EVIDENCE OF LOCAL MELTING

  8. REFERENCES • http://www.lbl.gov/Science-Articles/Archives/spaparking-metallic-glass.html • http://www.mat.ethz.ch/about_us/material_world/success... • http://www.eurekalert.org/pub_releases/1998-03/ • http://science.nasa.gov/headlines/y2003/14apr_zeroglass.htm • http://www.eng.auburn.edu/~wfgale/intro_metals/section3pg2.htm

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