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Updated: Aug 10, 2026

A Novel Biaxial Testing Apparatus for the Determination of Forming Limit under Hot Stamping Conditions
Published on: April 4, 2017
[Bond strength and rigidity modulus of non-precious alloys]
D Trifunnović1, Z Lekić, A Todorović
1University School of Dental Medicine, Belgrade.
Abstract:
The use of non-precious alloys in construction of metalceramic restorations has been increasing since 1979. This was the reason to study the bond strength and rigidity modulus of four selected base metal alloys developed for use with bonding porcelain. Three point loading design test was performed to evaluate the bond strength. The specimens made of Co-Cr-Mo alloys showed porcelain fracture at bond failure in a high percentage. Ni-Cr-Mo alloys showed mainly lamelar failure of the bond. The highest bond strength and rigidity modulus were found, in alloy containing titanium. It was noticed that ceramic can increase the rigidity of modulus metal by almost ten times. All studied alloys are technically very sensitive and manufacturer's instruction must be closely followed.
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