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Alloys

  • Background:
    • Take advantage of the superior mechanical properties of metals compared with ceramics (impact resistance)
    • Create strong bond between bone and metallic implant
    • Hip replacements could benefit
      • Current procedure uses a cement to bond metal shaft to bone
      • Problem: Cement degrades over time and metal shaft loosens
      • Result:  More surgery needed to replace cement
    • Why coat hydroxyapatite on metal?
  • Project Goals:
    • Synthesize hydroxyapatite without second phases or impurities
    • Phosphate metallic substrates
    • Coat hydroxyapatite on phosphated substrates

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