Calculation of Interfacial Stress in Dental Porcelain Bonded to Gold Alloy Substrate
- 1 July 1972
- journal article
- Published by SAGE Publications in Journal of Dental Research
- Vol. 51 (4), 1043-1047
- https://doi.org/10.1177/00220345720510040901
Abstract
Thermal shear stresses that arise from a mismatch of expansion coefficients (Δα) between porcelain and gold alloy can exceed the 13,000 psi shear resistance of the bond. Therefore, calculations of the Aa tolerance were made. A Aa of 0.125 X 10-6 inch/inch/degrees F is safe.Keywords
This publication has 4 references indexed in Scilit:
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- Bond strength and mechanical properties of dental porcelain enamelsThe Journal of Prosthetic Dentistry, 1967
- Some Factors Influencing Specific Gravity Determinations on Gold Cast AlloysJournal of Dental Research, 1966
- Analysis of Bi-Metal ThermostatsJournal of the Optical Society of America, 1925