Abstract:
: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.
journal_name
Dent Mater Jjournal_title
Dental materials journalauthors
Ito M,Kikuchi M,Okuno O,Kimura Kdoi
10.4012/dmj.24.268keywords:
subject
Has Abstractpub_date
2005-06-01 00:00:00pages
268-74issue
2eissn
0287-4547issn
1881-1361journal_volume
24pub_type
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