Material Science
ΔT = 1,000,000 °C / s
• Non-crystalline, amorphous structureNo dislocationsNo grain boundaries• High elastic limit• High strength
Discovered (1960’s)California Institute of TechnologyWilliam L. JohnsonAtakan PekerMetals used:CopperNickelZirconiumBeryll...
• Golf clubs• Fishing rods• Car bumpers• Aircraft skins• Artificial joints• Dies• Cutting tools• Others
• Small dimensions (due to cooling)• Raw materials expensiveApprox. from $500 per pound• Production expensive
HOT SPARKS FLY FROM A NOTCHEDSAMPLE OF BULK METALLIC GLASSFRACTURED BY A BLOW FROM APENDULUMFRACTURED SURFACE SHOWSEVIDENC...
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Metallic glass

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Metallic glass

  1. 1. Material Science
  2. 2. ΔT = 1,000,000 °C / s
  3. 3. • Non-crystalline, amorphous structureNo dislocationsNo grain boundaries• High elastic limit• High strength
  4. 4. Discovered (1960’s)California Institute of TechnologyWilliam L. JohnsonAtakan PekerMetals used:CopperNickelZirconiumBerylliumTitanium
  5. 5. • Golf clubs• Fishing rods• Car bumpers• Aircraft skins• Artificial joints• Dies• Cutting tools• Others
  6. 6. • Small dimensions (due to cooling)• Raw materials expensiveApprox. from $500 per pound• Production expensive
  7. 7. HOT SPARKS FLY FROM A NOTCHEDSAMPLE OF BULK METALLIC GLASSFRACTURED BY A BLOW FROM APENDULUMFRACTURED SURFACE SHOWSEVIDENCE OF LOCAL MELTING

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