钛表面3种不同处理方法对钛-瓷结合影响的对比研究

Abstract

Abstract: Objective To investigate the effects of micro arc oxidation, Nd:YAG laser-treatment and sandblasted on titanium-ceramic bonding. The surface morphology, physical properties and bonding strength were compared. Methods 60 pieces of titanium sheet of 25.0 mm ×5.0 mm ×0.5 mm were randomly divided into 3 groups, each group of 20 pieces. The A group was treated by micro arc oxidation, the B group was treated with laser, and the C group was treated by sandblasted. Scanning electron microscope (SEM), X ray diffraction (XRD), Energy Dispersive Spectroscopy (EDS) and other instruments were used to analyze the chemical composition and the surface topography. Three point bending test was conducted to measure the bonding strength, and the results were analyzed statistically. Results Bonding strength of group A, B and C were all higher than the minimum requirement (25 MPa) of ISO 9693. The bond strength of group B was higher than of group A, both of which were higher than group C. Conclusion All treatment methods can improve the titanium-porcelain bonding strength, and the effect of Nd:YAG laser treatment is the best.

Key words: Nd:YAG laser, Titanium, Bond strengths of titanium to porcelain, 3-point bending test method

CLC Number:

R783.2

References

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Comparison of the effects on titanium-ceramic bonding by three treatment methods on the titanium surface

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