Airborne-particle abrasion; searching the right parameter
作者： Mehmet Emre Coskun , Turker Akar , Faik Tugut
DOI: 10.1016/J.JDS.2018.02.002
关键词: Atomic force microscopy 、 Abrasion (mechanical) 、 Universal testing machine 、 Grain size 、 Airborne particle abrasion 、 Surface roughness 、 Bond strength 、 Profilometer 、 Composite material 、 Materials science
摘要: Abstract Background/purpose Air-particle abrasion process used to increase surface roughness in order metal-ceramic bond strength varies each study. This study aims optimize the air-particle protocol. Material and methods 820 cylindrical nickel-chrome specimens divided equally into 82 groups (n:10). The specimens' s surfaces were abraded with 50, 110, 250 μm Al2O3 at 25, 50,75 psi for 10, 20, 30 s a distance of 30 mm. To determine roughness, profilometer atomic force microscope used. Veneering ceramic was fired onto shear tests performed universal testing machine. Statistical analyzed using analysis variance (Kolmogorov–Smirnov). Results difference between all statistically significant (P Conclusion While parameters effective on only pressure grain size make strength.
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