Ceramic bonding strength of Au-1.6 wt% Ti alloy.

نویسندگان

  • Masayuki Ito
  • Masafumi Kikuchi
  • Osamu Okuno
  • Kohei Kimura
چکیده

The aim of this investigation was to evaluate the metal-ceramic bonding of Au-1.6 wt% Ti alloy. Therefore, the coefficient of thermal expansion, modulus of elasticity, ceramic bonding strength, and hardness of Au-1.6 wt% Ti alloy were measured. The metal-ceramic interface was observed by EPMA to investigate its bonding mechanism. The Au-1.6 wt% Ti alloy showed a coefficient of thermal expansion close to that of conventional precious metal alloys for metal-ceramics. Bonding strength was 25 MPa or higher for all specimens--whether ceramic-fired directly after casting, or following oxidation treatment or age hardening. Specimens subjected to oxidation treatment showed slightly lower post-firing hardness than those age-hardened. EPMA observation showed an accumulation of Ti and O contents on the alloy side at the metal-ceramic interface.

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عنوان ژورنال:
  • Dental materials journal

دوره 24 2  شماره 

صفحات  -

تاریخ انتشار 2005